Perspectives in Plant Ecology Evolution and Systematics最新文献

{"title":"Geographical parthenogenesis in tetraploid brambles: Do competition and reproductive output in the secondary contact zone matter?","authors":"Michaela Konečná ,&nbsp;Martin Duchoslav ,&nbsp;Michal Sochor","doi":"10.1016/j.ppees.2025.125859","DOIUrl":"10.1016/j.ppees.2025.125859","url":null,"abstract":"<div><div>Apomicts often show geographic distributions different from their sexual relatives, a phenomenon known as geographic parthenogenesis. Traits that have been suggested to influence the likelihood that apomicts and sexuals co-occur include those responsible for resource acquisition and reproductive traits. Here we test the contribution of these traits to geographic parthenogenesis, previously observed in a unique agamic system (<em>Rubus</em> ser. <em>Glandulosi</em>) free from the potential confounding effects of different ploidy. We conducted two competition experiments with different source materials (stem tips, root cuttings) of tetraploid apomicts and sexuals of <em>Rubus</em> ser. <em>Glandulosi</em> from their secondary contact zone to investigate their resource acquisition efficiency and reproductive characteristics. Both apomicts and sexuals were grown in monocultures and in mixtures of both reproductive groups, either with or without an additional competitor (grass <em>Elymus repens</em>). We found no consistent differences in survival, vegetative traits, biomass production or reproductive traits between sexuals and apomicts across treatments in either experiment. Thus, our data show similar competitiveness and fitness of apomicts and sexuals. Competitive exclusion, although potentially delayed by neutral dynamics, supports the strong parapatric distribution of sexuals and apomicts in the previously observed contact zone. However, the position of the contact zone and its shifts through time are largely determined by selection-independent factors like priority or stochastic effects and neutral population genetic processes.</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"67 ","pages":"Article 125859"},"PeriodicalIF":3.5,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mating patterns of an ambophilous dioecious dominant tree in fragmented Chaco Serrano forests","authors":"Ana Laura Chiapero ,&nbsp;María Cristina Acosta ,&nbsp;Lorena Ashworth ,&nbsp;Mauricio Quesada ,&nbsp;Gabriel Bernardello ,&nbsp;Ramiro Aguilar","doi":"10.1016/j.ppees.2025.125860","DOIUrl":"10.1016/j.ppees.2025.125860","url":null,"abstract":"<div><div><em>Lithraea molleoides</em> is a dominant dioecious tree native to the Chaco Serrano Forest, a highly fragmented and threatened ecoregion in central Argentina. The species has ambophily and is able to set seeds via apomixis, traits that may confer resilience to genetic erosion in fragmented forests. We analyzed the genetic diversity of adults and progeny from both continuous and fragmented forests of the Chaco Serrano ecoregion, and conducted paternity assignment and pollen flow analyses. Adult tree populations showed no differences in genetic diversity and structure between continuous and fragmented forests, suggesting they precede the events of habitat loss and fragmentation. In contrast, only the progeny from fragmented forests showed lower genetic diversity and increased inbreeding. Changes in pollinator assemblages in fragmented forests and a higher incidence of apomixis (i.e., only genotypes from female trees reflected in the progeny) may have contributed to reduced genetic diversity in the progeny. Contemporary pollen flow was more restricted in fragmented environments, probably due to changes in pollinator composition and limited wind pollination. While ambophily and apomixis provide reproductive assurance for <em>L. molleoides</em>, our study highlights they cannot prevent the genetic erosion observed in the progeny generated in fragmented forests. These findings have significant implications for conservation strategies aimed at preserving the genetic diversity and viability of <em>L. molleoides</em> populations in the last tracts of Chaco Serrano Forests.</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"67 ","pages":"Article 125860"},"PeriodicalIF":3.5,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fairy circle research: Status, controversies and the way forward","authors":"Michael D. Cramer ,&nbsp;Walter R. Tschinkel","doi":"10.1016/j.ppees.2025.125851","DOIUrl":"10.1016/j.ppees.2025.125851","url":null,"abstract":"<div><div><ul><li><span>1)</span><span><div>Fairy circles are regularly spaced barren circular patches in arid landscapes, typically encircled by a ring of taller grasses. They occur in South-western Africa and have also been suggested to occur in Australia, North Africa, Middle East and Madagascar. The enigmatic origins of fairy circles in arid landscapes have intrigued ecologists and sparked heated debate about the two main competing hypotheses: the termite origin (TO) and vegetation self-organization (VSO) hypotheses. In this review we attempt to untangle the claims and counter-claims regarding the two hypotheses in a dispassionate manner.</div></span></li><li><span>2)</span><span><div>The TO hypothesis posits that fairy circles form due to activities of <em>Psammotermes allocerus</em> termites, which through their foraging and nest-building behaviour create barren patches in arid grasslands, leading to the characteristic circular formations whose spacing results from competitive interactions between <em>P. allocerus</em> colonies.</div></span></li><li><span>3)</span><span><div>The VSO hypothesis posits that fairy circles in arid landscapes are the product of self-organizing behaviour of plants competing for limited water resources. Competition between neighbouring plants leads to the formation of barren circular patches with grassy peripheries. Water and nutrient mobility in coarse aeolian sands play a critical role in the shape and spacing between fairy circles.</div></span></li><li><span>4)</span><span><div>Problems with the TO hypothesis include the inconsistent central location of termite colonies within fairy circles, the difficulty of aligning the long-term persistence and stability of fairy circles with termite population dynamics, and the lack of evidence for aggressive termite interactions at the scale of the fairy circle pattern.</div></span></li><li><span>5)</span><span><div>The main challenge for the VSO hypothesis is a lack of direct empirical evidence, especially concerning complex underground water and nutrient fluxes. The precise mechanisms behind VSO remain unclear, making it difficult to fully validate this hypothesis as the sole explanation for fairy circles.</div></span></li><li><span>6)</span><span><div>Synthesis: This analysis underscores the VSO hypothesis as a coherent explanation for fairy circle formation. Progress will require manipulative experiments with environmental factors (e.g., termite presence, soil nutrients, water availability) that test the hypotheses directly. Long-term monitoring to observe fairy circle development and changes under varying conditions is also required.</div></span></li></ul></div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"67 ","pages":"Article 125851"},"PeriodicalIF":3.5,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Together but not mixed: mistletoe genetic diversity and seed disperser activity between evergreen and deciduous forests","authors":"Gabriela S. Olivares ,&nbsp;José I. Orellana ,&nbsp;Noemí Rojas-Hernández ,&nbsp;Caren Vega-Retter ,&nbsp;Javiera Villarroel ,&nbsp;Gloria B. Rodríguez-Gómez ,&nbsp;Roberto F. Nespolo ,&nbsp;Francisco E. Fontúrbel","doi":"10.1016/j.ppees.2025.125850","DOIUrl":"10.1016/j.ppees.2025.125850","url":null,"abstract":"<div><div>Habitat structure plays an important role in determining forest mammals' abundance and activity patterns, impacting their interactions with plant species. In the southern South American temperate rainforests, two mistletoe species (<em>Tristerix corymbosus</em> and <em>Desmaria mutabilis</em>) depend on the arboreal marsupial <em>Dromiciops bozinovici</em> for seed dispersal, inhabiting a mosaic of evergreen and deciduous <em>Nothofagus</em>-<em>Araucaria</em> forests. We used camera traps to compare marsupial abundance, visitation rates, and daily activity patterns between evergreen and deciduous forests. Also, we sequenced DNA (using SNPs) from both mistletoes to assess their genetic diversity, population genetic structure, and landscape genetics. <em>Dromiciops bozinovici</em> visited <em>T. corymbosus</em> more frequently in the evergreen forest and <em>D. mutabilis</em> in the deciduous forest, as it is the only mistletoe species found above 1250 m of elevation. Both mistletoe species showed similar genetic diversity between forest types, but <em>T. corymbosus</em> was more diverse than <em>D. mutabilis;</em> population structure was weak but significant in both cases. In both cases, gene flow was stronger towards the evergreen forest, and this asymmetry was more pronounced for <em>D. mutabilis</em>. Also, geographic and genetic distances were positively correlated except for <em>D. mutabilis</em> in the deciduous forest. <em>Dromiciops bozinovici</em> activity and abundance varied according to forest type and mistletoe species associated, which seem to be influencing gene flow and genetic diversity patterns. Interaction between plants and frugivores is particularly relevant in high-mountain forests, where mistletoes provide major resources for frugivores, which shape their spatial and genetic structures.</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"66 ","pages":"Article 125850"},"PeriodicalIF":3.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Winter annuals not only escape but also withstand winter droughts: Results from a multi-trait, multi-species approach","authors":"Susanne Kurze ,&nbsp;Bettina M.J. Engelbrecht ,&nbsp;Mark C. Bilton ,&nbsp;Katja Tielbörger ,&nbsp;Leonor Álvarez-Cansino","doi":"10.1016/j.ppees.2025.125849","DOIUrl":"10.1016/j.ppees.2025.125849","url":null,"abstract":"<div><div>Winter annual plants are a dominant life form in drylands. They evade seasonal drought through their life history, but are also exposed to drought within their growing season. Across species, winter annuals differ in traits allowing them to reproduce before a drought occurs (drought escape) as well as in traits minimizing tissue dehydration (drought avoidance) and/or maintaining functioning under drought (drought tolerance). It is yet uncertain how these traits are coordinated and influence winter annuals’ performance responses to drought within the growing season and their distribution along rainfall gradients. Understanding these mechanisms is crucial to predict global change impacts in drylands. We measured 22 traits hypothesized to influence whole-plant performance responses to drought in 29 winter annuals common in the Eastern Mediterranean Basin. We examined trait syndromes and linked species’ strengths of these trait syndromes with their fecundity responses to an experimental within-season drought, their maximum growth rates (in 18 species), and their distribution along a rainfall gradient. Four trait syndromes emerged: Two were largely consistent with drought avoidance and tolerance, while the other two consisted of traits considered to confer drought escape. Both escape syndromes were differently associated with plant size and therefore referred to as small and tall escape syndrome. Species with a pronounced small escape syndrome showed, albeit weakly, higher fecundity losses under experimental drought. Both species with a pronounced avoidance or tall escape syndrome exhibited higher growth rates, but only annuals with pronounced avoidance traits tended to occur in moister conditions. Our findings highlight that winter annuals, despite their common life history, exhibit several trait syndromes conferring them similar ability to cope with drought in the growing season. Consequently, increasing within-season drought with global change may hardly affect community composition of winter annuals.</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"67 ","pages":"Article 125849"},"PeriodicalIF":3.5,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143437287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factors that extend flowering phenology for pollinators in prairie restorations","authors":"Nathan Soley,&nbsp;Brian Wilsey","doi":"10.1016/j.ppees.2025.125848","DOIUrl":"10.1016/j.ppees.2025.125848","url":null,"abstract":"<div><div>Tallgrass prairies contain plant species that flower sequentially throughout the growing season, and having a range of flowering phenologies is assumed to be important for pollinators. However, it is poorly known what factors cause extended flowering and how to best manage for it in restorations. Here, we test the hypotheses that extended flowering in restorations is caused by 1) seed mixes of high forb abundance relative to grasses, 2) greater abundance of forbs that flower especially early and late in the growing season, 3) greater richness of early and late-flowering forbs, and 4) mowing during the growing season. We tested hypotheses with two separate restoration experiments, the first in which seed mixes with different grass: forb ratios were compared at a site in Iowa, USA (grass: forb ratio experiment), and the second in which early and late-flowering forbs were added (or were not added) to restorations that were subsequently mowed or not mowed at three sites in Iowa and Minnesota, USA (forb addition experiment). In both experiments, community floral volume was estimated at least monthly throughout the growing season and flowering niche breadth was calculated as a measure of extended flowering phenology. In addition, in the grass: forb ratio experiment visitation by pollinators was recorded. Plots sown with intermediate grass: forb ratios had greater flowering niche breadth, flower production, and pollinator diversity, and the increased species richness of these seed mixtures best explained positive effects on flowering niche breadth. Adding a greater number of forb species in the forb addition experiment increased flowering niche breadth and flower production, especially when forbs were added as transplants to bypass the seedling recruitment stage. Mowing reduced flower production, but it increased flowering niche breadth, primarily in the forb additions with greatest species richness. Our results indicate that extending flowering phenology is possible in restorations when seed mixes with intermediate grass: forb ratios are used and a large number of early and late-flowering forb species are added as transplants. These factors also increase flower production, which was a significant predictor of the number and diversity of pollinators that visited flowers.</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"66 ","pages":"Article 125848"},"PeriodicalIF":3.5,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ornamental perennials in flowerbeds shaded by tree canopy: Succession over five years since the establishment","authors":"Josef Kutlvašr ,&nbsp;Adam Baroš ,&nbsp;Pavlína Truhlárská ,&nbsp;Kateřina Berchová Bímová ,&nbsp;Martina Vojíková ,&nbsp;Martin Vojík ,&nbsp;Petr Pyšek ,&nbsp;Jan Pergl","doi":"10.1016/j.ppees.2025.125847","DOIUrl":"10.1016/j.ppees.2025.125847","url":null,"abstract":"<div><div>Ornamental plantings are an integral part of modern landscapes transformed by humans. In the last decades, there has been a shift towards low-maintenance plantings with reduced energy input, associated with increasing use of easy-to-grow, profusely blooming taxa with broad ecological niches. However, such species can escape from cultivation, naturalize easily, become invasive, and cause environmental and socioeconomic problems. Our study focused on ornamental flowerbeds shaded by the canopy of trees; we studied the survival of the planted taxa in succession and patterns of dominance exchange over five years since planting and compared the results with those obtained previously for sunny ornamental flowerbeds. We recorded 155 taxa (53%) surviving from the initially planted species pool and 118 newly arrived colonizers. The surviving taxa increased or maintained the same abundance as they had at the beginning of succession. Generative reproduction was the main factor contributing to successful survival, followed by specific leaf area (SLA). We observed an increase in diversity, measured as the Shannon-Wiener index, in two of 11 flowerbeds but found no relationship between diversity and stability, calculated as a distance of initial and recent stage in ordination space. The same traits, namely tall stature and high fecundity were important in shaded and sunny assemblages, which were key factors for survival and performance in both environments. The presented results are not only important from the biological invasions point of view but can also help gardeners promote the long-term stability of flowerbeds and save resources necessary for future maintenance of flowerbeds.</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"66 ","pages":"Article 125847"},"PeriodicalIF":3.5,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143212681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tillandsia landbeckii secures high phenotypic variation despite clonal propagation at the dry limits of plant life in the Atacama Desert","authors":"Sarina Jabbusch,&nbsp;Marcus A. Koch","doi":"10.1016/j.ppees.2025.125846","DOIUrl":"10.1016/j.ppees.2025.125846","url":null,"abstract":"<div><div>Hyperarid desert systems are among the most extreme and life-limiting biotas on Earth and lack almost any rainfall such as the Atacama Desert in northern Chile. In this study, we explored <em>Tillandsia landbeckii</em> loma vegetation consisting of only one single plant species that often covers square kilometers and is dependent on regular fog events as the most important water supply. We assessed growth and fitness parameters in the field and in cultivation; individual plants from nine permanent field study plots were collected and studied for phenotypic variation and plasticity under greenhouse conditions focusing on temperature and humidity. Individuals studied in the field and in cultivation have been genotyped using ddRAD analyses. The growth-related phenotypic variation shows very fine-scale adaptations to environmental gradients reflecting fog availability, and phenotypic variation is shown to be large. Genetic data indicate that <em>Tillandsia landbeckii</em> propagates mostly clonally, and various clones exhibit increased phenotypic variation and also prevail in the population. Our results suggest that while sexual reproduction is limited the long-lived <em>Tillandsia landbeckii</em> plant secures genotypes with high phenotypic variation via clonal propagation. As a consequence, a mosaic of such clonally reproducing vegetation units is securing not only genetic and phenotypic variation but also the integrity of the entire vegetation system thereby buffering environmental stress at the limits of vascular plant life. On longer time scales spanning hundreds to thousands of years, genetic variation is increased by rare and occasional gene flow, but the success of contemporary vegetation dynamics relies also on clonally reproduced ramets.</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"66 ","pages":"Article 125846"},"PeriodicalIF":3.5,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal variability in native plant composition clouds impact of increasing non-native richness along elevational gradients in Tenerife","authors":"Meike Buhaly ,&nbsp;Amanda Ratier Backes ,&nbsp;José Ramón Arévalo ,&nbsp;Sylvia Haider","doi":"10.1016/j.ppees.2024.125845","DOIUrl":"10.1016/j.ppees.2024.125845","url":null,"abstract":"<div><div>Introductions of non-native plant species and their rates of expansion into novel environments are rapidly climbing, and their impact on recipient community composition is currently not well documented. Under the influence of rapidly intensifying human activity, pathways such as roads support such range expansions, especially in vulnerable mountain regions. Using species composition and abundance data collected in disturbed and natural habitats along three mountain roads covering almost 2500 m in elevation, we investigate how non-native plant species impact temporal change in community composition and spatial community dissimilarity on the island of Tenerife over 14 years. We found that, within communities, the number of both native and non-native species increased over time in disturbed habitats, while non-native species richness decreased in natural habitats. While species composition of communities changed over time, this change was not greater with or without non-native species, though any signal of non-native species’ influence was likely lost due to the surprisingly high variability in the native community. In disturbed roadside habitats, turnover of species over time played a larger role in temporal change in community composition than changes in species’ abundances. Despite increases in richness and occurrences along the elevation gradient, non-native species did not spatially homogenize communities. Although impacts of non-native species on temporal changes in community dissimilarity were presently not found, increases in the number of non-native species and their occurrences illustrate the need for long-term monitoring of altitudinal spread in mountain plant communities, especially in anthropogenically disturbed habitats.</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"66 ","pages":"Article 125845"},"PeriodicalIF":3.5,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gondwanan origin and foremost Miocene diversification explain the paleotropical intercontinental disjunction (PID) in the winged seed clade of Malvaceae","authors":"Samiksha Shukla ,&nbsp;Kajal Chandra ,&nbsp;Anumeha Shukla","doi":"10.1016/j.ppees.2024.125842","DOIUrl":"10.1016/j.ppees.2024.125842","url":null,"abstract":"<div><div>Understanding the biogeographic and diversification processes that explain current patterns of diversity in cosmopolitan groups is complex. We aimed to understand the historical biogeography by estimating the ancestral area of origin and diversification of tropical to subtropical plant genus <em>Eriolaena</em> DC. of the subfamily Dombeyoideae (family Malvaceae). To trace the evolutionary trajectory of this clade, fossil leaves exhibiting similarities to the modern genus <em>Eriolaena</em> are described here as <em>E. paleowallichii</em> from the early Paleogene succession of Rajasthan (India). This marks the first fossil record of <em>Eriolaena</em>, commonly known as the Winged Seed Clade (WSC), making this discovery crucial for understanding the evolutionary history of the clade. The Winged Seed Clade (WSC) of the subfamily Dombeyoideae initially included three genera: <em>Eriolaena</em>, <em>Helmiopsis</em>, and <em>Helmiopsiella</em>. However, subsequent taxonomic revisions, based on morphological and molecular studies, led to their consolidation under the genus <em>Eriolaena</em>. This winged clade shows a palaeotropical intercontinental disjunction (PID), mainly located in Southeast Asia, India, and Madagascar with only a single species in Africa. We assembled a dense sampling of the WSC throughout the current geographical distribution to reconstruct the historical biogeography of this clade. A detailed phylogenetic study indicates that the WSC diverged from its sister clade <em>Andringitra</em> in the lower Cretaceous (∼88 Mya, credibility intervals 72.39–105.35), the initial diversification of the WSC occurred around 74.15 Mya (credibility intervals 60.82–88.62 Mya) and broadly this clade was globally diversified in the Miocene. The DEC+J model indicated that (1) WSC likely originated in Madagascar around 79 Mya (2) jump-distance dispersal events were inferred between Madagascar to India and Madagascar to Africa, (3) ‘Out of India dispersals’ occurred mainly in the Miocene, allowing this clade to colonize in Southeast Asia. Biogeography and divergence dating indicate that the Miocene was an important epoch when this clade diversified globally. Our findings suggest that an ancient origin connected with a dispersal history enabled by terrestrial land bridges and long-distance dispersals is likely to explain the winged seed clade's palaeotropical intercontinental disjunction (PID).</div></div>","PeriodicalId":56093,"journal":{"name":"Perspectives in Plant Ecology Evolution and Systematics","volume":"66 ","pages":"Article 125842"},"PeriodicalIF":3.5,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}