The genus <jats:italic>Xylaria</jats:italic> comprises a diverse group of fungi with a global distribution and significant ecological importance, known for being a source of bioactive secondary metabolites with antibacterial, antioxidative, anticarcinogenic, and additional properties. In this study, we present a comprehensive taxonomic revision of the species of <jats:italic>Xylaria</jats:italic> found in some parts of southern China, characterized by an extensive multilocus phylogeny analysis based on internal transcribed spacer (ITS), <jats:italic>TUB2</jats:italic> (β‐tubulin), and DNA‐directed RNA polymerase II subunit 2 (<jats:italic>rpb2</jats:italic>) gene regions. Morphological examination and detailed comparative analyses of the collected specimens were conducted to determine the distinctiveness of each species. The multilocus phylogeny approach allowed us to infer evolutionary relationships and assess species boundaries accurately, leading to the identification of 40 novel <jats:italic>Xylaria</jats:italic> species hitherto unknown to science. The newly described species are: <jats:italic>X. baoshanensis</jats:italic>, <jats:italic>X. bawanglingensis</jats:italic>, <jats:italic>X. botryoidalis</jats:italic>, <jats:italic>X. dadugangensis</jats:italic>, <jats:italic>X. doupengshanensis</jats:italic>, <jats:italic>X. fanglanii</jats:italic>, <jats:italic>X. glaucae</jats:italic>, <jats:italic>X. guizhouensis</jats:italic>, <jats:italic>X. japonica</jats:italic>, <jats:italic>X. jinghongensis</jats:italic>, <jats:italic>X. jinshanensis</jats:italic>, <jats:italic>X. kuankuoshuiensis</jats:italic>, <jats:italic>X. liboensis</jats:italic>, <jats:italic>X. negundinis</jats:italic>, <jats:italic>X. orbiculati</jats:italic>, <jats:italic>X. ovata</jats:italic>, <jats:italic>X. pseudoanisopleura</jats:italic>, <jats:italic>X. pseudocubensis</jats:italic>, <jats:italic>X. pseudobambusicola</jats:italic>, <jats:italic>X. pseudoglobosa</jats:italic>, <jats:italic>X. pseudohemisphaerica</jats:italic>, <jats:italic>X. pseudohypoxylon</jats:italic>, <jats:italic>X. puerensis</jats:italic>, <jats:italic>X. qianensis</jats:italic>, <jats:italic>X. qiongzhouensis</jats:italic>, <jats:italic>X. rhombostroma</jats:italic>, <jats:italic>X. serratifoliae</jats:italic>, <jats:italic>X. shishangensis</jats:italic>, <jats:italic>X. shuqunii</jats:italic>, <jats:italic>X. shuangjiangensis</jats:italic>, <jats:italic>X. sinensis</jats:italic>, <jats:italic>X. tongrenensis</jats:italic>, <jats:italic>X. umbellata</jats:italic>, <jats:italic>X. xishuiensis</jats:italic>, <jats:italic>X. yaorenshanensis</jats:italic>, <jats:italic>X. yinggelingensis</jats:italic>, <jats:italic>X. yumingii</jats:italic>, <jats:italic>X. yunnanensis</jats:italic>, <jats:italic>X. zangmui</jats:italic>, and <jats:italic>X. zonghuangii</jats:italic>. The study's findings shed light on the distinctiveness of the newly described species, supported by both morphological distinctions and ph
{"title":"Revisiting Xylaria diversity in Southern China: Descriptions of 40 new species","authors":"Qi‐Rui Li, Kamran Habib, You‐Peng Wu, Si‐Han Long, Xu Zhang, Hong‐Min Hu, Qian‐Zhen Wu, Li‐Li Liu, Yan Lin, Xiang‐Chun Shen, Ji‐Chuan Kang","doi":"10.1111/jse.13058","DOIUrl":"https://doi.org/10.1111/jse.13058","url":null,"abstract":"The genus <jats:italic>Xylaria</jats:italic> comprises a diverse group of fungi with a global distribution and significant ecological importance, known for being a source of bioactive secondary metabolites with antibacterial, antioxidative, anticarcinogenic, and additional properties. In this study, we present a comprehensive taxonomic revision of the species of <jats:italic>Xylaria</jats:italic> found in some parts of southern China, characterized by an extensive multilocus phylogeny analysis based on internal transcribed spacer (ITS), <jats:italic>TUB2</jats:italic> (β‐tubulin), and DNA‐directed RNA polymerase II subunit 2 (<jats:italic>rpb2</jats:italic>) gene regions. Morphological examination and detailed comparative analyses of the collected specimens were conducted to determine the distinctiveness of each species. The multilocus phylogeny approach allowed us to infer evolutionary relationships and assess species boundaries accurately, leading to the identification of 40 novel <jats:italic>Xylaria</jats:italic> species hitherto unknown to science. The newly described species are: <jats:italic>X. baoshanensis</jats:italic>, <jats:italic>X. bawanglingensis</jats:italic>, <jats:italic>X. botryoidalis</jats:italic>, <jats:italic>X. dadugangensis</jats:italic>, <jats:italic>X. doupengshanensis</jats:italic>, <jats:italic>X. fanglanii</jats:italic>, <jats:italic>X. glaucae</jats:italic>, <jats:italic>X. guizhouensis</jats:italic>, <jats:italic>X. japonica</jats:italic>, <jats:italic>X. jinghongensis</jats:italic>, <jats:italic>X. jinshanensis</jats:italic>, <jats:italic>X. kuankuoshuiensis</jats:italic>, <jats:italic>X. liboensis</jats:italic>, <jats:italic>X. negundinis</jats:italic>, <jats:italic>X. orbiculati</jats:italic>, <jats:italic>X. ovata</jats:italic>, <jats:italic>X. pseudoanisopleura</jats:italic>, <jats:italic>X. pseudocubensis</jats:italic>, <jats:italic>X. pseudobambusicola</jats:italic>, <jats:italic>X. pseudoglobosa</jats:italic>, <jats:italic>X. pseudohemisphaerica</jats:italic>, <jats:italic>X. pseudohypoxylon</jats:italic>, <jats:italic>X. puerensis</jats:italic>, <jats:italic>X. qianensis</jats:italic>, <jats:italic>X. qiongzhouensis</jats:italic>, <jats:italic>X. rhombostroma</jats:italic>, <jats:italic>X. serratifoliae</jats:italic>, <jats:italic>X. shishangensis</jats:italic>, <jats:italic>X. shuqunii</jats:italic>, <jats:italic>X. shuangjiangensis</jats:italic>, <jats:italic>X. sinensis</jats:italic>, <jats:italic>X. tongrenensis</jats:italic>, <jats:italic>X. umbellata</jats:italic>, <jats:italic>X. xishuiensis</jats:italic>, <jats:italic>X. yaorenshanensis</jats:italic>, <jats:italic>X. yinggelingensis</jats:italic>, <jats:italic>X. yumingii</jats:italic>, <jats:italic>X. yunnanensis</jats:italic>, <jats:italic>X. zangmui</jats:italic>, and <jats:italic>X. zonghuangii</jats:italic>. The study's findings shed light on the distinctiveness of the newly described species, supported by both morphological distinctions and ph","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"143 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140316648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lone Aagesen, Diego L. Salariato, María A. Scataglini, Juan M. Acosta, Silvia S. Denham, Carolina Delfini
In this study, we explored the distributions of grass genera in the Southern Cone (SC) of South America, applying several phylogenetic diversity (PD) metrics and randomization tests. Grasses appear to have been present in South America since their early evolution as tropical understory species more than 60 Ma. During the course of evolution, grasses have adapted to all terrestrial biomes and become one of the most successful plant families on earth. At present, the SC contains nearly all terrestrial biomes and a wide range of humid to arid ecoregions. Analyzing 126.514 point occurrences and four plastid markers for 148 genera (91% of the native grass genera), we found that tropical humid regions hold the highest PD, with no observed bias in branch lengths. These results indicate that niche conservatism dominates the diversity pattern of grasses in the SC. We found significantly low PD in the Dry Chaco and in the Patagonian Steppe, which suggest ecological filtering in both warm and cold arid regions. The Patagonian Steppe also holds significantly longer branches than expected by chance, as the native grass flora is mainly composed of distantly related Pooideae genera with a northern hemisphere origin. Short branches are found in the Uruguayan Savanna, suggesting that these grasslands could be a cradle for grass diversity within the SC. The dated phylogeny supported the current view of a relatively recent evolution of the family within the SC, with most diversification taking place from the middle Miocene and onwards.
{"title":"Spatial phylogenetics of grasses in the Southern Cone provides insights into ecology and evolution of the family in South America","authors":"Lone Aagesen, Diego L. Salariato, María A. Scataglini, Juan M. Acosta, Silvia S. Denham, Carolina Delfini","doi":"10.1111/jse.13067","DOIUrl":"https://doi.org/10.1111/jse.13067","url":null,"abstract":"In this study, we explored the distributions of grass genera in the Southern Cone (SC) of South America, applying several phylogenetic diversity (PD) metrics and randomization tests. Grasses appear to have been present in South America since their early evolution as tropical understory species more than 60 Ma. During the course of evolution, grasses have adapted to all terrestrial biomes and become one of the most successful plant families on earth. At present, the SC contains nearly all terrestrial biomes and a wide range of humid to arid ecoregions. Analyzing 126.514 point occurrences and four plastid markers for 148 genera (91% of the native grass genera), we found that tropical humid regions hold the highest PD, with no observed bias in branch lengths. These results indicate that niche conservatism dominates the diversity pattern of grasses in the SC. We found significantly low PD in the Dry Chaco and in the Patagonian Steppe, which suggest ecological filtering in both warm and cold arid regions. The Patagonian Steppe also holds significantly longer branches than expected by chance, as the native grass flora is mainly composed of distantly related Pooideae genera with a northern hemisphere origin. Short branches are found in the Uruguayan Savanna, suggesting that these grasslands could be a cradle for grass diversity within the SC. The dated phylogeny supported the current view of a relatively recent evolution of the family within the SC, with most diversification taking place from the middle Miocene and onwards.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"85 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140170185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yun‐Feng Li, Lian Luo, Yang Liu, Qiang He, Ning‐Ning Yu, Naren Gaowa, Zhao‐Qin Yi, Jun‐Jie Wang, Wei Han, Tao Peng, Boon‐Chuan Ho, Xiaolan He, Li Zhang, Zhi‐Duan Chen, Yu Jia, Qing‐Hua Wang
Bryophytes, a monophyletic group comprising three major lineages, diversified soon after the terrestrialization of land plants. However, their internal phylogenetic relationships remain controversial. In this study, we reconstructed the ordinal and familial phylogeny of bryophytes using the largest plastid data set to date, including 549 taxa that represent almost all known orders and two‐thirds of families. The strongly supported phylogenetic inference enabled us to propose in mosses seven newly segregated families, that is, Baldwiniellaceae, Calyptrochaetaceae, Ctenidiaceae, Herpetineuraceae, Isodrepaniaceae, Pseudotaxiphyllaceae, and Rozeaceae, and one reduced family, that is, Climaciaceae. We also transferred the liverwort family Calyculariaceae from Fossombroniales to Pelliales. Recent advancements in molecular phylogeny have revolutionized bryophyte classification, tending to be more fragmental. Hence, we further propose a revised familial classification system for bryophytes that includes 45 orders and 142 families in mosses, 23 orders and 85 families in liverworts, and five orders and five families in hornworts.
{"title":"The Bryophyte Phylogeny Group: A revised familial classification system based on plastid phylogenomic data","authors":"Yun‐Feng Li, Lian Luo, Yang Liu, Qiang He, Ning‐Ning Yu, Naren Gaowa, Zhao‐Qin Yi, Jun‐Jie Wang, Wei Han, Tao Peng, Boon‐Chuan Ho, Xiaolan He, Li Zhang, Zhi‐Duan Chen, Yu Jia, Qing‐Hua Wang","doi":"10.1111/jse.13063","DOIUrl":"https://doi.org/10.1111/jse.13063","url":null,"abstract":"Bryophytes, a monophyletic group comprising three major lineages, diversified soon after the terrestrialization of land plants. However, their internal phylogenetic relationships remain controversial. In this study, we reconstructed the ordinal and familial phylogeny of bryophytes using the largest plastid data set to date, including 549 taxa that represent almost all known orders and two‐thirds of families. The strongly supported phylogenetic inference enabled us to propose in mosses seven newly segregated families, that is, Baldwiniellaceae, Calyptrochaetaceae, Ctenidiaceae, Herpetineuraceae, Isodrepaniaceae, Pseudotaxiphyllaceae, and Rozeaceae, and one reduced family, that is, Climaciaceae. We also transferred the liverwort family Calyculariaceae from Fossombroniales to Pelliales. Recent advancements in molecular phylogeny have revolutionized bryophyte classification, tending to be more fragmental. Hence, we further propose a revised familial classification system for bryophytes that includes 45 orders and 142 families in mosses, 23 orders and 85 families in liverworts, and five orders and five families in hornworts.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"29 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140127625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As an important halophyte in the Yellow River Delta, the Amaranthaceae C3Suaeda salsa (L.) Pall. has attracted much attention for the “red carpet” landscape, and could be simply divided into red and green phenotypes according to the betacyanin content in the fleshy leaves. However, S. salsa has not been sequenced yet, which limited people's understanding of this species at the molecular level. We constructed a high‐quality chromosome‐scale reference genome by combining high‐throughput sequencing, PacBio single molecule real‐time sequencing, and Hi‐C sequencing techniques with a genome size of 445.10 Mb and contigs N50 of 2.94 Mb. Through the annotation of the S. salsa genome, 298.76 Mb of the repetitive sequences and 23 965 protein‐coding genes were identified, of which the proportion of long terminal repeats type in the repetitive sequences was the most abundant, about 50.74% of the S. salsa genome. Comparative genomics indicated that S. salsa underwent a whole‐genome duplication event about 146.15 million years ago (Ma), and the estimated divergence time between S. salsa and Suaeda aralocaspica was about 16.9 Ma. A total of four betacyanins including betanidin, celosianin II, amaranthin and 6′‐O‐malonyl‐celosianin II were identified and purified in both phenotypes, while two significantly up‐regulated betacyanins (celosianin II and amaranthin) may be the main reason for the red color in red phenotype. In addition, we also performed transcriptomics and metabolomics in both phenotypes to explore the molecular mechanisms of pigment synthesis, and a series of structural genes and transcription factors concerning with betacyanin production were selected in S. salsa.
{"title":"Multi‐omics provides insights into genome evolution and betacyanin biosynthesis in halophyte of Suaeda salsa","authors":"Xin Wang, Jiang‐Bao Xia, Jun‐Hong Bai, Shuo Yin, Wei Wang, Da‐Wei Wang, Xin‐Xin Yi, Sheng‐Hong Dai","doi":"10.1111/jse.13064","DOIUrl":"https://doi.org/10.1111/jse.13064","url":null,"abstract":"As an important halophyte in the Yellow River Delta, the Amaranthaceae C<jats:sub>3</jats:sub> <jats:italic>Suaeda salsa</jats:italic> (L.) Pall. has attracted much attention for the “red carpet” landscape, and could be simply divided into red and green phenotypes according to the betacyanin content in the fleshy leaves. However, <jats:italic>S. salsa</jats:italic> has not been sequenced yet, which limited people's understanding of this species at the molecular level. We constructed a high‐quality chromosome‐scale reference genome by combining high‐throughput sequencing, PacBio single molecule real‐time sequencing, and Hi‐C sequencing techniques with a genome size of 445.10 Mb and contigs N50 of 2.94 Mb. Through the annotation of the <jats:italic>S. salsa</jats:italic> genome, 298.76 Mb of the repetitive sequences and 23 965 protein‐coding genes were identified, of which the proportion of long terminal repeats type in the repetitive sequences was the most abundant, about 50.74% of the <jats:italic>S. salsa</jats:italic> genome. Comparative genomics indicated that <jats:italic>S. salsa</jats:italic> underwent a whole‐genome duplication event about 146.15 million years ago (Ma), and the estimated divergence time between <jats:italic>S. salsa</jats:italic> and <jats:italic>Suaeda aralocaspica</jats:italic> was about 16.9 Ma. A total of four betacyanins including betanidin, celosianin II, amaranthin and 6′‐O‐malonyl‐celosianin II were identified and purified in both phenotypes, while two significantly up‐regulated betacyanins (celosianin II and amaranthin) may be the main reason for the red color in red phenotype. In addition, we also performed transcriptomics and metabolomics in both phenotypes to explore the molecular mechanisms of pigment synthesis, and a series of structural genes and transcription factors concerning with betacyanin production were selected in <jats:italic>S. salsa</jats:italic>.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"15 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140127699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Crepidinae are the largest subtribe of the Cichorieae (Asteraceae). Debate remains over the circumscription and phylogeny of this subtribe, mainly due to its complex morphology and the poor phylogenetic signal provided by traditional Sanger sequencing markers. In this study, a well‐resolved phylogeny of the subtribe Crepidinae, consisting of seven highly supported clades, was obtained for the first time using nuclear data with a phylogenomics approach (Hyb‐Seq). Using this phylogeny along with other evidence, we propose a new taxonomic framework for the Crepidinae with seven lines and 29 genera, which merges subtribe Chondrillinae with the Crepidinae. We also describe a new monotypic genus, Qineryangia, that is characterized by broad involucres, loose imbricate phyllaries with wavy margins, and thick pappus bristles.
{"title":"Qineryangia, a new genus from the Hengduan Mountains and new insights into the phylogeny of the subtribe Crepidinae (Cichorieae, Asteraceae)","authors":"Lian‐Sheng Xu, Zhu‐Qiu Song, Shu‐Yuan Liao, You‐Sheng Chen","doi":"10.1111/jse.13066","DOIUrl":"https://doi.org/10.1111/jse.13066","url":null,"abstract":"The Crepidinae are the largest subtribe of the Cichorieae (Asteraceae). Debate remains over the circumscription and phylogeny of this subtribe, mainly due to its complex morphology and the poor phylogenetic signal provided by traditional Sanger sequencing markers. In this study, a well‐resolved phylogeny of the subtribe Crepidinae, consisting of seven highly supported clades, was obtained for the first time using nuclear data with a phylogenomics approach (Hyb‐Seq). Using this phylogeny along with other evidence, we propose a new taxonomic framework for the Crepidinae with seven lines and 29 genera, which merges subtribe Chondrillinae with the Crepidinae. We also describe a new monotypic genus, <jats:italic>Qineryangia</jats:italic>, that is characterized by broad involucres, loose imbricate phyllaries with wavy margins, and thick pappus bristles.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"47 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140127277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julián Aguirre-Santoro, Alejandro Zuluaga, Emma Stonesmyth, Julio Betancur, Rachel S. Jabaily
Phylogenomics enhances our understanding of plant radiations in the biodiverse Andes. Our study focuses on Puya, primarily Andean and a part of the Bromeliaceae family. Using a phylogenomic framework based on the Angiosperms353 probe set for 80 species, we explored Puya′s phenotypic evolution and biogeography. Divergence time analyses and ancestral area estimations suggested that Puya originated in Central Coastal Chile around 9 million years ago (Ma). Subsequently, it dispersed to the dry valleys of the Central Andes and Puna regions between 5–8 Ma, leading to the emergence of major lineages. Key events in the last 2–4 million years include the recolonization of Chilean lowlands and dispersal to the northern Andes via Peru's Jalcas, facilitating passage through the Huancabamba depression. This event gave rise to the high-elevation Northern Andes clade. Using phylogenetic comparative methods, we tested the hypothesis that adaptation to the Andes' island-like high-elevation ecosystems was facilitated by unique leaf and floral traits, life history, and inflorescence morphology. Our findings suggest correlations between inflorescence axis compression, protective bract overlap, and high-elevation living, potentially preventing reproductive structure freezing. Semelparity evolved exclusively at high elevations, although its precise adaptive value remains uncertain. Our framework offers insights into Andean evolution, highlighting that lineages adapted to life in dry ecosystems can easily transition to high-elevation biomes. It also underscores how the island-like nature of high-elevation ecosystems influences phenotypic evolution rates. Moreover, it opens avenues to explore genetic mechanisms underlying adaptation to extreme mountain conditions.
{"title":"Phylogenomics of Puya (Bromeliaceae): Evolution in the Andean slopes and sky island ecosystems","authors":"Julián Aguirre-Santoro, Alejandro Zuluaga, Emma Stonesmyth, Julio Betancur, Rachel S. Jabaily","doi":"10.1111/jse.13062","DOIUrl":"https://doi.org/10.1111/jse.13062","url":null,"abstract":"Phylogenomics enhances our understanding of plant radiations in the biodiverse Andes. Our study focuses on <i>Puya</i>, primarily Andean and a part of the Bromeliaceae family. Using a phylogenomic framework based on the Angiosperms353 probe set for 80 species, we explored <i>Puya</i>′s phenotypic evolution and biogeography. Divergence time analyses and ancestral area estimations suggested that <i>Puya</i> originated in Central Coastal Chile around 9 million years ago (Ma). Subsequently, it dispersed to the dry valleys of the Central Andes and Puna regions between 5–8 Ma, leading to the emergence of major lineages. Key events in the last 2–4 million years include the recolonization of Chilean lowlands and dispersal to the northern Andes via Peru's Jalcas, facilitating passage through the Huancabamba depression. This event gave rise to the high-elevation Northern Andes clade. Using phylogenetic comparative methods, we tested the hypothesis that adaptation to the Andes' island-like high-elevation ecosystems was facilitated by unique leaf and floral traits, life history, and inflorescence morphology. Our findings suggest correlations between inflorescence axis compression, protective bract overlap, and high-elevation living, potentially preventing reproductive structure freezing. Semelparity evolved exclusively at high elevations, although its precise adaptive value remains uncertain. Our framework offers insights into Andean evolution, highlighting that lineages adapted to life in dry ecosystems can easily transition to high-elevation biomes. It also underscores how the island-like nature of high-elevation ecosystems influences phenotypic evolution rates. Moreover, it opens avenues to explore genetic mechanisms underlying adaptation to extreme mountain conditions.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"3 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140073089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Meng Yang, Shu-Feng Zhang, Bin Li, Yun-Xin Lan, Yi-Han Yang, Meng-Jun Liu
Jujube (Ziziphus jujuba Mill.), renowned for its nutritional value and health benefits, is believed to have originated in the middle and lower reaches of the Yellow River in China, where it underwent domestication from wild jujube. Nonetheless, the evolutionary trajectory and species differentiation between wild jujube and cultivated jujube still require further elucidation. The chloroplast genome (plastome), characterized by its relatively lower mutation rate compared to the nuclear genome, serves as an excellent model for evolutionary and comparative genomic research. In this study, we analyzed 326 nonredundant plastomes, encompassing 133 jujube cultivars and 193 wild jujube genotypes distributed throughout China. Noteworthy variations in the large single copy region primarily account for the size differences among these plastomes, impacting the evolution from wild jujube to cultivated varieties. Horizontal gene transfer (HGT) unveiled a unique chloroplast-to-nucleus transfer event, with transferred fragments predominantly influencing the evolution of the nuclear genome while leaving the plastome relatively unaffected. Population genetics analysis revealed two distinct evolutionary pathways from wild jujube to cultivated jujube: one driven by natural selection with minimal human interference, and the other resulting from human domestication and cultivation. Molecular dating, based on phylogenetic analysis, supported the likelihood that wild jujube and cultivated jujube fall within the same taxonomic category, Z. jujuba. In summary, our study comprehensively examined jujube plastome structures and HGT events, simultaneously contributing novel insights into the intricate processes that govern the evolution and domestication of jujube species.
{"title":"Comparative analysis of 326 chloroplast genomes in Chinese jujube (Ziziphus jujuba): Structural variations, horizontal gene transfer events, and evolutionary patterns impacting its domestication from wild jujube","authors":"Meng Yang, Shu-Feng Zhang, Bin Li, Yun-Xin Lan, Yi-Han Yang, Meng-Jun Liu","doi":"10.1111/jse.13065","DOIUrl":"https://doi.org/10.1111/jse.13065","url":null,"abstract":"Jujube (<i>Ziziphus jujuba</i> Mill.), renowned for its nutritional value and health benefits, is believed to have originated in the middle and lower reaches of the Yellow River in China, where it underwent domestication from wild jujube. Nonetheless, the evolutionary trajectory and species differentiation between wild jujube and cultivated jujube still require further elucidation. The chloroplast genome (plastome), characterized by its relatively lower mutation rate compared to the nuclear genome, serves as an excellent model for evolutionary and comparative genomic research. In this study, we analyzed 326 nonredundant plastomes, encompassing 133 jujube cultivars and 193 wild jujube genotypes distributed throughout China. Noteworthy variations in the large single copy region primarily account for the size differences among these plastomes, impacting the evolution from wild jujube to cultivated varieties. Horizontal gene transfer (HGT) unveiled a unique chloroplast-to-nucleus transfer event, with transferred fragments predominantly influencing the evolution of the nuclear genome while leaving the plastome relatively unaffected. Population genetics analysis revealed two distinct evolutionary pathways from wild jujube to cultivated jujube: one driven by natural selection with minimal human interference, and the other resulting from human domestication and cultivation. Molecular dating, based on phylogenetic analysis, supported the likelihood that wild jujube and cultivated jujube fall within the same taxonomic category, <i>Z. jujuba</i>. In summary, our study comprehensively examined jujube plastome structures and HGT events, simultaneously contributing novel insights into the intricate processes that govern the evolution and domestication of jujube species.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"24 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140011477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The most significant driver of adaptive radiation in the New World leaf‐nosed bats (Phyllostomidae) is their remarkably diverse feeding habits, yet there remains a notable scarcity of studies addressing the genetic underpinnings of dietary diversification in this family. In this study, we have assembled a new genome for a representative species of phyllostomid bat, the fringe‐lipped bat (Trachops cirrhosis), and integrated it with eight published phyllostomid genomes, along with an additional 10 genomes of other bat species. Comparative genomic analysis across 10 200 orthologus genes has unveiled that those genes subject to divergent selection within the Phyllostomidae clade are notably enriched in metabolism‐related pathways. Furthermore, we identified molecular signatures of divergent selection in the bitter receptor gene Tas2r1, as well as 14 genes involved in digesting key nutrients such as carbohydrates, proteins, and fats. In addition, our cell‐based functional assays conducted on Tas2r1 showed a broader spectrum of perception for bitter compounds in phyllostomids compared to nonphyllostomid bats, suggesting functional diversification of bitter taste in Phyllostomidae. Together, our genomic and functional analyses lead us to propose that divergent selection of genes associated with taste, digestion and absorption, and metabolism assumes a pivotal role in steering the extreme dietary diversification in Phyllostomidae. This study not only illuminates the genetic mechanisms underlying dietary adaptations in Phyllostomidae bats but also enhances our understanding of their extraordinary adaptive radiation.
{"title":"Genomic and functional insights into dietary diversification in New World leaf‐nosed bats (Phyllostomidae)","authors":"Yi‐Ran Xu, Ying‐Can Li, Hui‐Qiao Hu, Heng‐Wu Jiao, Hua‐Bin Zhao","doi":"10.1111/jse.13059","DOIUrl":"https://doi.org/10.1111/jse.13059","url":null,"abstract":"The most significant driver of adaptive radiation in the New World leaf‐nosed bats (Phyllostomidae) is their remarkably diverse feeding habits, yet there remains a notable scarcity of studies addressing the genetic underpinnings of dietary diversification in this family. In this study, we have assembled a new genome for a representative species of phyllostomid bat, the fringe‐lipped bat (<jats:italic>Trachops cirrhosis</jats:italic>), and integrated it with eight published phyllostomid genomes, along with an additional 10 genomes of other bat species. Comparative genomic analysis across 10 200 orthologus genes has unveiled that those genes subject to divergent selection within the Phyllostomidae clade are notably enriched in metabolism‐related pathways. Furthermore, we identified molecular signatures of divergent selection in the bitter receptor gene <jats:italic>Tas2r1</jats:italic>, as well as 14 genes involved in digesting key nutrients such as carbohydrates, proteins, and fats. In addition, our cell‐based functional assays conducted on <jats:italic>Tas2r1</jats:italic> showed a broader spectrum of perception for bitter compounds in phyllostomids compared to nonphyllostomid bats, suggesting functional diversification of bitter taste in Phyllostomidae. Together, our genomic and functional analyses lead us to propose that divergent selection of genes associated with taste, digestion and absorption, and metabolism assumes a pivotal role in steering the extreme dietary diversification in Phyllostomidae. This study not only illuminates the genetic mechanisms underlying dietary adaptations in Phyllostomidae bats but also enhances our understanding of their extraordinary adaptive radiation.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"8 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140011211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
East Asia constitutes one of the largest and most complex areas of plant diversity globally. This complexity is attributable to the geological history and climatic diversity of East Asia. However, controversy persists over the biogeographical hypotheses and different studies on this topic. The demographical complexity of temperate deciduous woody plants and heterogeneity of geological and climatic fluctuations in East Asia remain poorly understood. We aimed to assemble the chloroplast and nuclear genomes of 360 individuals from five walnut (Juglans) species in East Asia and comprehensively analyze the phylogenetic inference, genetic structure, population demographic, and selection pressure. The results showed that East Asian walnuts could be divided into two major groups, that is, section Juglans/Dioscaryon and sect. Cardiocaryon. Within sect. Cardiocaryon, the samples were categorized into the northern clade and southern clade, both of which were affected by Quaternary glaciation; however, the southern clade was affected to a lesser extent. The population expansion events observed in sect. Cardiocaryon and sect. Dioscaryon since the late Miocene indicated that Neogene climate cooling substantially affected the distribution of Tertiary relict plants in East Asia. Biogeographic analysis results showed that the uplift of the Qinghai–Tibetan Plateau (QTP) might have contributed to the divergence within sect. Dioscaryon. Our findings highlight the heterogeneity of climatic fluctuations in the northern and southern regions of East Asia during the late Neogene and Quaternary periods and suggest that the uplift of QTP could have facilitated the divergence of temperate deciduous woody plants.
{"title":"Demographical complexity within walnut species provides insights into the heterogeneity of geological and climatic fluctuations in East Asia","authors":"Fang‐Dong Geng, Meng‐Fan Lei, Nai‐Yu Zhang, Yao‐Lei Fu, Hang Ye, Meng Dang, Xue‐Dong Zhang, Miao‐Qing Liu, Meng‐Di Li, Zhan‐Lin Liu, Peng Zhao","doi":"10.1111/jse.13061","DOIUrl":"https://doi.org/10.1111/jse.13061","url":null,"abstract":"East Asia constitutes one of the largest and most complex areas of plant diversity globally. This complexity is attributable to the geological history and climatic diversity of East Asia. However, controversy persists over the biogeographical hypotheses and different studies on this topic. The demographical complexity of temperate deciduous woody plants and heterogeneity of geological and climatic fluctuations in East Asia remain poorly understood. We aimed to assemble the chloroplast and nuclear genomes of 360 individuals from five walnut (<jats:italic>Juglans</jats:italic>) species in East Asia and comprehensively analyze the phylogenetic inference, genetic structure, population demographic, and selection pressure. The results showed that East Asian walnuts could be divided into two major groups, that is, section <jats:italic>Juglans</jats:italic>/<jats:italic>Dioscaryon</jats:italic> and sect. <jats:italic>Cardiocaryon</jats:italic>. Within sect. <jats:italic>Cardiocaryon</jats:italic>, the samples were categorized into the northern clade and southern clade, both of which were affected by Quaternary glaciation; however, the southern clade was affected to a lesser extent. The population expansion events observed in sect. <jats:italic>Cardiocaryon</jats:italic> and sect. <jats:italic>Dioscaryon</jats:italic> since the late Miocene indicated that Neogene climate cooling substantially affected the distribution of Tertiary relict plants in East Asia. Biogeographic analysis results showed that the uplift of the Qinghai–Tibetan Plateau (QTP) might have contributed to the divergence within sect. <jats:italic>Dioscaryon</jats:italic>. Our findings highlight the heterogeneity of climatic fluctuations in the northern and southern regions of East Asia during the late Neogene and Quaternary periods and suggest that the uplift of QTP could have facilitated the divergence of temperate deciduous woody plants.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"24 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140011448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Sui people living in Guizhou province have a unique ethnic culture and population history due to their long‐time isolation from other populations. To investigate the genetic structure of Sui populations in different regions of Guizhou, we genotyped 89 individuals from four Sui populations using genome‐wide single nucleotide polymorphisms arrays. We analyzed the data using principal component analysis, ADMIXTURE analysis, f‐statistics, qpWave/qpAdm, TreeMix analysis, fineSTRUCTURE, and GLOBETROTTER. We found that Sui populations in Guizhou were genetically homogeneous and had a close genetic affinity with Tai‐Kadai‐speaking populations, Hmong‐Mien‐speaking Hmong, and some ancient populations from southern China. The Sui populations could be modeled as an admixture of 33.5%–37.9% of Yellow River Basin farmer‐related ancestry and 62.1%–66.5% of Southeast Asian‐related ancestry, indicating that the southward expansion of northern East Asian‐related ancestry influenced the formation of the Tai‐Kadai‐speaking Sui people. Future publications of more ancient genomics in southern China could effectively provide further insight into the demographic history and population structure of the Sui people.
{"title":"Genetic formation of Sui populations in southwest China","authors":"Ming‐Xia Xie, Xing‐Yue Hu, Qi‐Yang Wang, Zheng Ren, Yu‐Bo Liu, Mei‐Qing Yang, Xiao‐Ye Jin, Xiao‐Min Yang, Rui Wang, Chuan‐Chao Wang, Jiang Huang","doi":"10.1111/jse.13056","DOIUrl":"https://doi.org/10.1111/jse.13056","url":null,"abstract":"The Sui people living in Guizhou province have a unique ethnic culture and population history due to their long‐time isolation from other populations. To investigate the genetic structure of Sui populations in different regions of Guizhou, we genotyped 89 individuals from four Sui populations using genome‐wide single nucleotide polymorphisms arrays. We analyzed the data using principal component analysis, ADMIXTURE analysis, <jats:italic>f</jats:italic>‐statistics, <jats:italic>qpWave/qpAdm</jats:italic>, TreeMix analysis, fineSTRUCTURE, and GLOBETROTTER. We found that Sui populations in Guizhou were genetically homogeneous and had a close genetic affinity with Tai‐Kadai‐speaking populations, Hmong‐Mien‐speaking Hmong, and some ancient populations from southern China. The Sui populations could be modeled as an admixture of 33.5%–37.9% of Yellow River Basin farmer‐related ancestry and 62.1%–66.5% of Southeast Asian‐related ancestry, indicating that the southward expansion of northern East Asian‐related ancestry influenced the formation of the Tai‐Kadai‐speaking Sui people. Future publications of more ancient genomics in southern China could effectively provide further insight into the demographic history and population structure of the Sui people.","PeriodicalId":17087,"journal":{"name":"Journal of Systematics and Evolution","volume":"8 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140011450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}