Pomegranate (Punica granatum L.) which belongs to family Lythraceae, is one of the most important fruit crops of many tropical and subtropical regions. A high variability in fruit color is observed among different pomegranate accessions, which arises from the qualitative and quantitative differences in anthocyanins. However, the mechanism of fruit color variation is still not fully elucidated. In the present study, we investigated the red color mutation between a red-skinned pomegranate ‘Hongbaoshi’ and a purple-red-skinned cultivar ‘Moshiliu’, by using transcriptomic and metabolomic approaches. A total of 51 anthocyanins were identified from fruit peels, among which 3-glucoside and 3,5-diglucoside of cyanidin (Cy), delphinidin (Dp), and pelargonidin (Pg) were dominant. High proportion of Pg in early stages of ‘Hongbaoshi’ but high Dp in late stages of ‘Moshiliu’ were characterized. The unique high levels of Cy and Dp anthocyanins accumulating from early developmental stages accounted for the purple-red phenotype of ‘Moshiliu’. Transcriptomic analysis revealed an early down-regulated and late up-regulated of anthocyanin-related structure genes in ‘Moshiliu’ compared with ‘Hongbaoshi’. Alao, ANR was specially expressed in ‘Hongbaoshi’, with extremely low expression levels in ‘Moshiliu’. For transcription factors R2R3-MYB, the profiles demonstrated a much higher transcription levels of three subgroup (SG) 5 MYBs and a sharp decrease in expression of SG6 MYB LOC116202527 in high-anthocyanin ‘Moshiliu’. SG4 MYBs exhibited two entirely different patterns, LOC116203744 and LOC116212505 were down-regulated whereas LOC116205515 and LOC116212778 were up-regulated in ‘Moshiliu’ pomegranate. The results indicate that specific SG members of the MYB family might promote the peel coloration in different manners and play important roles in color mutation in pomegranate.
{"title":"Comparative transcriptomic and metabolomic profiles reveal fruit peel color variation in two red pomegranate cultivars","authors":"Xueqing Zhao, Yingyi Feng, Ding Ke, Yingfen Teng, Zhaohe Yuan","doi":"10.1007/s11103-024-01446-9","DOIUrl":"https://doi.org/10.1007/s11103-024-01446-9","url":null,"abstract":"<p>Pomegranate (<i>Punica granatum</i> L.) which belongs to family Lythraceae, is one of the most important fruit crops of many tropical and subtropical regions. A high variability in fruit color is observed among different pomegranate accessions, which arises from the qualitative and quantitative differences in anthocyanins. However, the mechanism of fruit color variation is still not fully elucidated. In the present study, we investigated the red color mutation between a red-skinned pomegranate ‘Hongbaoshi’ and a purple-red-skinned cultivar ‘Moshiliu’, by using transcriptomic and metabolomic approaches. A total of 51 anthocyanins were identified from fruit peels, among which 3-glucoside and 3,5-diglucoside of cyanidin (Cy), delphinidin (Dp), and pelargonidin (Pg) were dominant. High proportion of Pg in early stages of ‘Hongbaoshi’ but high Dp in late stages of ‘Moshiliu’ were characterized. The unique high levels of Cy and Dp anthocyanins accumulating from early developmental stages accounted for the purple-red phenotype of ‘Moshiliu’. Transcriptomic analysis revealed an early down-regulated and late up-regulated of anthocyanin-related structure genes in ‘Moshiliu’ compared with ‘Hongbaoshi’. Alao, <i>ANR</i> was specially expressed in ‘Hongbaoshi’, with extremely low expression levels in ‘Moshiliu’. For transcription factors R2R3-MYB, the profiles demonstrated a much higher transcription levels of three subgroup (SG) 5 <i>MYB</i>s and a sharp decrease in expression of SG6 <i>MYB LOC116202527</i> in high-anthocyanin ‘Moshiliu’. SG4 <i>MYB</i>s exhibited two entirely different patterns, <i>LOC116203744</i> and <i>LOC116212505</i> were down-regulated whereas <i>LOC116205515</i> and <i>LOC116212778</i> were up-regulated in ‘Moshiliu’ pomegranate. The results indicate that specific SG members of the MYB family might promote the peel coloration in different manners and play important roles in color mutation in pomegranate.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140840729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rapeseed, an important oil crop, relies on robust seedling emergence for optimal yields. Seedling emergence in the field is vulnerable to various factors, among which inadequate self-supply of energy is crucial to limiting seedling growth in early stage. SUGAR-DEPENDENT1 (SDP1) initiates triacylglycerol (TAG) degradation, yet its detailed function has not been determined in B. napus. Here, we focused on the effects of plant growth during whole growth stages and energy mobilization during seedling establishment by mutation in BnSDP1. Protein sequence alignment and haplotypic analysis revealed the conservation of SDP1 among species, with a favorable haplotype enhancing oil content. Investigation of agronomic traits indicated bnsdp1 had a minor impact on vegetative growth and no obvious developmental defects when compared with wild type (WT) across growth stages. The seed oil content was improved by 2.0–2.37% in bnsdp1 lines, with slight reductions in silique length and seed number per silique. Furthermore, bnsdp1 resulted in lower seedling emergence, characterized by a shrunken hypocotyl and poor photosynthetic capacity in the early stages. Additionally, impaired seedling growth, especially in yellow seedlings, was not fully rescued in medium supplemented with exogenous sucrose. The limited lipid turnover in bnsdp1 was accompanied by induced amino acid degradation and PPDK-dependent gluconeogenesis pathway. Analysis of the metabolites in cotyledons revealed active amino acid metabolism and suppressed lipid degradation, consistent with the RNA-seq results. Finally, we proposed strategies for applying BnSDP1 in molecular breeding. Our study provides theoretical guidance for understanding trade-off between oil accumulation and seedling energy mobilization in B. napus.
{"title":"Developmental pleiotropy of SDP1 from seedling to mature stages in B. napus","authors":"Baolong Tao, Yina Ma, Liqin Wang, Chao He, Junlin Chen, Xiaoyu Ge, Lun Zhao, Jing Wen, Bin Yi, Jinxing Tu, Tingdong Fu, Jinxiong Shen","doi":"10.1007/s11103-024-01447-8","DOIUrl":"https://doi.org/10.1007/s11103-024-01447-8","url":null,"abstract":"<p>Rapeseed, an important oil crop, relies on robust seedling emergence for optimal yields. Seedling emergence in the field is vulnerable to various factors, among which inadequate self-supply of energy is crucial to limiting seedling growth in early stage. SUGAR-DEPENDENT1 (SDP1) initiates triacylglycerol (TAG) degradation, yet its detailed function has not been determined in <i>B. napus</i>. Here, we focused on the effects of plant growth during whole growth stages and energy mobilization during seedling establishment by mutation in <i>BnSDP1</i>. Protein sequence alignment and haplotypic analysis revealed the conservation of SDP1 among species, with a favorable haplotype enhancing oil content. Investigation of agronomic traits indicated <i>bnsdp1</i> had a minor impact on vegetative growth and no obvious developmental defects when compared with wild type (WT) across growth stages. The seed oil content was improved by 2.0–2.37% in <i>bnsdp1</i> lines, with slight reductions in silique length and seed number per silique. Furthermore, <i>bnsdp1</i> resulted in lower seedling emergence, characterized by a shrunken hypocotyl and poor photosynthetic capacity in the early stages. Additionally, impaired seedling growth, especially in yellow seedlings, was not fully rescued in medium supplemented with exogenous sucrose. The limited lipid turnover in <i>bnsdp1</i> was accompanied by induced amino acid degradation and PPDK-dependent gluconeogenesis pathway. Analysis of the metabolites in cotyledons revealed active amino acid metabolism and suppressed lipid degradation, consistent with the RNA-seq results. Finally, we proposed strategies for applying BnSDP1 in molecular breeding. Our study provides theoretical guidance for understanding trade-off between oil accumulation and seedling energy mobilization in <i>B. napus</i>.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140629262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Continuous cropping of faba bean (Vicia faba L.) has led to a high incidence of wilt disease. The implementation of an intercropping system involving wheat and faba bean can effectively control the propagation of faba bean wilt disease. To investigate the mechanisms of wheat in mitigating faba bean wilt disease in a wheat-faba bean intercropping system. A comprehensive investigation was conducted to assess the temporal variations in Fusarium oxysporum f. sp. fabae (FOF) on the chemotaxis of benzoxazinoids (BXs) and wheat root through indoor culture tests. The effects of BXs on FOF mycelial growth, spore germination, spore production, and electrical conductivity were examined. The influence of BXs on the ultrastructure of FOF was investigated through transmission electron microscopy. Eukaryotic mRNA sequencing was utilized to analyze the differentially expressed genes in FOF upon treatment with BXs. FOF exhibited a significant positive chemotactic effect on BXs in wheat roots and root secretions. BXs possessed the potential to exert significant allelopathic effects on the mycelial growth, spore germination, and sporulation of FOF. In addition, BXs demonstrated a remarkable ability to disrupt the structural integrity and stability of the membrane and cell wall of the FOF mycelia. BXs possessed the capability of posing threats to the integrity and stability of the cell membrane and cell wall. This ultimately resulted in physiological dysfunction, effectively inhibiting the regular growth and developmental processes of the FOF.
{"title":"Mechanism of benzoxazinoids affecting the growth and development of Fusarium oxysporum f. sp. fabae","authors":"Zixuan Cen, Bijie Hu, Siyin Yang, Guanglei Ma, Yiran Zheng, Yan Dong","doi":"10.1007/s11103-024-01439-8","DOIUrl":"https://doi.org/10.1007/s11103-024-01439-8","url":null,"abstract":"<p>Continuous cropping of faba bean (<i>Vicia faba</i> L.) has led to a high incidence of wilt disease. The implementation of an intercropping system involving wheat and faba bean can effectively control the propagation of faba bean wilt disease. To investigate the mechanisms of wheat in mitigating faba bean wilt disease in a wheat-faba bean intercropping system. A comprehensive investigation was conducted to assess the temporal variations in <i>Fusarium oxysporum</i> f. sp. <i>fabae</i> (FOF) on the chemotaxis of benzoxazinoids (BXs) and wheat root through indoor culture tests. The effects of BXs on FOF mycelial growth, spore germination, spore production, and electrical conductivity were examined. The influence of BXs on the ultrastructure of FOF was investigated through transmission electron microscopy. Eukaryotic mRNA sequencing was utilized to analyze the differentially expressed genes in FOF upon treatment with BXs. FOF exhibited a significant positive chemotactic effect on BXs in wheat roots and root secretions. BXs possessed the potential to exert significant allelopathic effects on the mycelial growth, spore germination, and sporulation of FOF. In addition, BXs demonstrated a remarkable ability to disrupt the structural integrity and stability of the membrane and cell wall of the FOF mycelia. BXs possessed the capability of posing threats to the integrity and stability of the cell membrane and cell wall. This ultimately resulted in physiological dysfunction, effectively inhibiting the regular growth and developmental processes of the FOF.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-17DOI: 10.1007/s11103-024-01443-y
Mohamed Farah Abdulla, Karam Mostafa, Abdullah Aydin, Musa Kavas, Emre Aksoy
The GATA transcription factors (TFs) have been extensively studied for its regulatory role in various biological processes in many plant species. The functional and molecular mechanism of GATA TFs in regulating tolerance to abiotic stress has not yet been studied in the common bean. This study analyzed the functional identity of the GATA gene family in the P. vulgaris genome under different abiotic and phytohormonal stress. The GATA gene family was systematically investigated in the P. vulgaris genome, and 31 PvGATA TFs were identified. The study found that 18 out of 31 PvGATA genes had undergone duplication events, emphasizing the role of gene duplication in GATA gene expansion. All the PvGATA genes were classified into four significant subfamilies, with 8, 3, 6, and 13 members in each subfamily (subfamilies I, II, III, and IV), respectively. All PvGATA protein sequences contained a single GATA domain, but subfamily II members had additional domains such as CCT and tify. A total of 799 promoter cis-regulatory elements (CREs) were predicted in the PvGATAs. Additionally, we used qRT-PCR to investigate the expression profiles of five PvGATA genes in the common bean roots under abiotic conditions. The results suggest that PvGATA01/10/25/28 may play crucial roles in regulating plant resistance against salt and drought stress and may be involved in phytohormone-mediated stress signaling pathways. PvGATA28 was selected for overexpression and cloned into N. benthamiana using Agrobacterium-mediated transformation. Transgenic lines were subjected to abiotic stress, and results showed a significant tolerance of transgenic lines to stress conditions compared to wild-type counterparts. The seed germination assay suggested an extended dormancy of transgenic lines compared to wild-type lines. This study provides a comprehensive analysis of the PvGATA gene family, which can serve as a foundation for future research on the function of GATA TFs in abiotic stress tolerance in common bean plants.
{"title":"GATA transcription factor in common bean: A comprehensive genome-wide functional characterization, identification, and abiotic stress response evaluation","authors":"Mohamed Farah Abdulla, Karam Mostafa, Abdullah Aydin, Musa Kavas, Emre Aksoy","doi":"10.1007/s11103-024-01443-y","DOIUrl":"https://doi.org/10.1007/s11103-024-01443-y","url":null,"abstract":"<p>The GATA transcription factors (TFs) have been extensively studied for its regulatory role in various biological processes in many plant species. The functional and molecular mechanism of GATA TFs in regulating tolerance to abiotic stress has not yet been studied in the common bean. This study analyzed the functional identity of the <i>GATA</i> gene family in the <i>P. vulgaris</i> genome under different abiotic and phytohormonal stress. The <i>GATA</i> gene family was systematically investigated in the <i>P. vulgaris</i> genome, and 31 PvGATA TFs were identified. The study found that 18 out of 31 <i>PvGATA</i> genes had undergone duplication events, emphasizing the role of gene duplication in GATA gene expansion. All the <i>PvGATA</i> genes were classified into four significant subfamilies, with 8, 3, 6, and 13 members in each subfamily (subfamilies I, II, III, and IV), respectively. All PvGATA protein sequences contained a single GATA domain, but subfamily II members had additional domains such as CCT and tify. A total of 799 promoter <i>cis</i>-regulatory elements (CREs) were predicted in the <i>PvGATAs</i>. Additionally, we used qRT-PCR to investigate the expression profiles of five <i>PvGATA</i> genes in the common bean roots under abiotic conditions. The results suggest that <i>PvGATA01/10/25/28</i> may play crucial roles in regulating plant resistance against salt and drought stress and may be involved in phytohormone-mediated stress signaling pathways. <i>PvGATA28</i> was selected for overexpression and cloned into <i>N. benthamiana</i> using Agrobacterium-mediated transformation. Transgenic lines were subjected to abiotic stress, and results showed a significant tolerance of transgenic lines to stress conditions compared to wild-type counterparts. The seed germination assay suggested an extended dormancy of transgenic lines compared to wild-type lines. This study provides a comprehensive analysis of the <i>PvGATA</i> gene family, which can serve as a foundation for future research on the function of GATA TFs in abiotic stress tolerance in common bean plants.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Albino tea cultivars have high economic value because their young leaves contain enhanced free amino acids that improve the quality and properties of tea. Zhonghuang 1 (ZH1) and Zhonghuang 2 (ZH2) are two such cultivars widely planted in China; however, the environmental factors and molecular mechanisms regulating their yellow-leaf phenotype remain unclear. In this study, we demonstrated that both ZH1 and ZH2 are light- and temperature-sensitive. Under natural sunlight and low-temperature conditions, their young shoots were yellow with decreased chlorophyll and an abnormal chloroplast ultrastructure. Conversely, young shoots were green with increased chlorophyll and a normal chloroplast ultrastructure under shading and high-temperature conditions. RNA-seq analysis was performed for high light and low light conditions, and pairwise comparisons identified genes exhibiting different light responses between albino and green-leaf cultivars, including transcription factors, cytochrome P450 genes, and heat shock proteins. Weighted gene coexpression network analyses of RNA-seq data identified the modules related to chlorophyll differences between cultivars. Genes involved in chloroplast biogenesis and development, light signaling, and JA biosynthesis and signaling were typically downregulated in albino cultivars, accompanied by a decrease in JA-ILE content in ZH2 during the albino period. Furthermore, we identified the hub genes that may regulate the yellow-leaf phenotype of ZH1 and ZH2, including CsGDC1, CsALB4, CsGUN4, and a TPR gene (TEA010575.1), which were related to chloroplast biogenesis. This study provides new insights into the molecular mechanisms underlying leaf color formation in albino tea cultivars.
{"title":"Transcriptomic analysis of hub genes regulating albinism in light- and temperature-sensitive albino tea cultivars ‘Zhonghuang 1’ and ‘Zhonghuang 2’","authors":"Lu Wang, Taimei Di, Nana Li, Jing Peng, Yedie Wu, Mingming He, Xinyuan Hao, Jianyan Huang, Changqing Ding, Yajun Yang, Xinchao Wang","doi":"10.1007/s11103-024-01430-3","DOIUrl":"https://doi.org/10.1007/s11103-024-01430-3","url":null,"abstract":"<p>Albino tea cultivars have high economic value because their young leaves contain enhanced free amino acids that improve the quality and properties of tea. Zhonghuang 1 (ZH1) and Zhonghuang 2 (ZH2) are two such cultivars widely planted in China; however, the environmental factors and molecular mechanisms regulating their yellow-leaf phenotype remain unclear. In this study, we demonstrated that both ZH1 and ZH2 are light- and temperature-sensitive. Under natural sunlight and low-temperature conditions, their young shoots were yellow with decreased chlorophyll and an abnormal chloroplast ultrastructure. Conversely, young shoots were green with increased chlorophyll and a normal chloroplast ultrastructure under shading and high-temperature conditions. RNA-seq analysis was performed for high light and low light conditions, and pairwise comparisons identified genes exhibiting different light responses between albino and green-leaf cultivars, including transcription factors, cytochrome P450 genes, and heat shock proteins. Weighted gene coexpression network analyses of RNA-seq data identified the modules related to chlorophyll differences between cultivars. Genes involved in chloroplast biogenesis and development, light signaling, and JA biosynthesis and signaling were typically downregulated in albino cultivars, accompanied by a decrease in JA-ILE content in ZH2 during the albino period. Furthermore, we identified the hub genes that may regulate the yellow-leaf phenotype of ZH1 and ZH2, including <i>CsGDC1</i>, <i>CsALB4</i>, <i>CsGUN4</i>, and a <i>TPR</i> gene (<i>TEA010575.1</i>), which were related to chloroplast biogenesis. This study provides new insights into the molecular mechanisms underlying leaf color formation in albino tea cultivars.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-17DOI: 10.1007/s11103-024-01434-z
Chang Zhang, Mei Jiang, Jingting Liu, Bin Wu, Chang Liu
Natural Antisense Transcripts (NATs) are a kind of complex regulatory RNAs that play crucial roles in gene expression and regulation. However, the NATs in Cannabis Sativa L., a widely economic and medicinal plant rich in cannabinoids remain unknown. In this study, we comprehensively predicted C. sativa NATs genome-wide using strand-specific RNA sequencing (ssRNA-Seq) data, and validated the expression profiles by strand-specific quantitative reverse transcription PCR (ssRT-qPCR). Consequently, a total of 307 NATs were predicted in C. sativa, including 104 cis- and 203 trans- NATs. Functional enrichment analysis demonstrated the potential involvement of the C. sativa NATs in DNA polymerase activity, RNA-DNA hybrid ribonuclease activity, and nucleic acid binding. Finally, 18 cis- and 376 trans- NAT-ST pairs were predicted to produce 621 cis- and 5,679 trans- small interfering RNA (nat-siRNAs), respectively. These nat-siRNAs were potentially involved in the biosynthesis of cannabinoids and cellulose. All these results will shed light on the regulation of NATs and nat-siRNAs in C. sativa.
{"title":"Genome-wide view and characterization of natural antisense transcripts in Cannabis Sativa L","authors":"Chang Zhang, Mei Jiang, Jingting Liu, Bin Wu, Chang Liu","doi":"10.1007/s11103-024-01434-z","DOIUrl":"https://doi.org/10.1007/s11103-024-01434-z","url":null,"abstract":"<p>Natural Antisense Transcripts (NATs) are a kind of complex regulatory RNAs that play crucial roles in gene expression and regulation. However, the NATs in <i>Cannabis Sativa</i> L., a widely economic and medicinal plant rich in cannabinoids remain unknown. In this study, we comprehensively predicted <i>C. sativ</i>a NATs genome-wide using strand-specific RNA sequencing (ssRNA-Seq) data, and validated the expression profiles by strand-specific quantitative reverse transcription PCR (ssRT-qPCR). Consequently, a total of 307 NATs were predicted in <i>C. sativa</i>, including 104 <i>cis-</i> and 203 <i>trans</i>- NATs. Functional enrichment analysis demonstrated the potential involvement of the <i>C. sativa</i> NATs in DNA polymerase activity, RNA-DNA hybrid ribonuclease activity, and nucleic acid binding. Finally, 18 <i>cis</i>- and 376 <i>trans-</i> NAT-ST pairs were predicted to produce 621 <i>cis</i>- and 5,679 <i>trans</i>- small interfering RNA (nat-siRNAs), respectively. These nat-siRNAs were potentially involved in the biosynthesis of cannabinoids and cellulose. All these results will shed light on the regulation of NATs and nat-siRNAs in <i>C. sativa</i>.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-17DOI: 10.1007/s11103-024-01429-w
Langlang Zhang, Xiaofei Wang, Kang Dong, Bin Tan, Xianbo Zheng, Xia Ye, Wei Wang, Jun Cheng, Jiancan Feng
Peach fruit rapidly soften after harvest, a significant challenge for producers and marketers as it results in rotting fruit and significantly reduces shelf life. In this study, we identified two tandem genes, PpNAC1 and PpNAC5, within the sr (slow ripening) locus. Phylogenetic analysis showed that NAC1 and NAC5 are highly conserved in dicots and that PpNAC1 is the orthologous gene of Non-ripening (NOR) in tomato. PpNAC1 and PpNAC5 were highly expressed in peach fruit, with their transcript levels up-regulated at the onset of ripening. Yeast two-hybrid and bimolecular fluorescence complementation assays showed PpNAC1 interacting with PpNAC5 and this interaction occurs with the tomato and apple orthologues. Transient gene silencing experiments showed that PpNAC1 and PpNAC5 positively regulate peach fruit softening. Yeast one-hybrid and dual luciferase assays and LUC bioluminescence imaging proved that PpNAC1 and PpNAC5 directly bind to the PpPGF promoter and activate its transcription. Co-expression of PpNAC1 and PpNAC5 showed higher levels of PpPGF activation than expression of PpNAC1 or PpNAC5 alone. In summary, our findings demonstrate that the tandem transcription factors PpNAC1 and PpNAC5 synergistically activate the transcription of PpPGF to regulate fruit softening during peach fruit ripening.
{"title":"Tandem transcription factors PpNAC1 and PpNAC5 synergistically activate the transcription of the PpPGF to regulate peach softening during fruit ripening","authors":"Langlang Zhang, Xiaofei Wang, Kang Dong, Bin Tan, Xianbo Zheng, Xia Ye, Wei Wang, Jun Cheng, Jiancan Feng","doi":"10.1007/s11103-024-01429-w","DOIUrl":"https://doi.org/10.1007/s11103-024-01429-w","url":null,"abstract":"<p>Peach fruit rapidly soften after harvest, a significant challenge for producers and marketers as it results in rotting fruit and significantly reduces shelf life. In this study, we identified two tandem genes, <i>PpNAC1</i> and <i>PpNAC5</i>, within the <i>sr</i> (slow ripening) locus. Phylogenetic analysis showed that <i>NAC1</i> and <i>NAC5</i> are highly conserved in dicots and that <i>PpNAC1</i> is the orthologous gene of <i>Non-ripening</i> (<i>NOR</i>) in tomato. <i>PpNAC1</i> and <i>PpNAC5</i> were highly expressed in peach fruit, with their transcript levels up-regulated at the onset of ripening. Yeast two-hybrid and bimolecular fluorescence complementation assays showed PpNAC1 interacting with PpNAC5 and this interaction occurs with the tomato and apple orthologues. Transient gene silencing experiments showed that <i>PpNAC1</i> and <i>PpNAC5</i> positively regulate peach fruit softening. Yeast one-hybrid and dual luciferase assays and LUC bioluminescence imaging proved that PpNAC1 and PpNAC5 directly bind to the <i>PpPGF</i> promoter and activate its transcription. Co-expression of PpNAC1 and PpNAC5 showed higher levels of <i>PpPGF</i> activation than expression of PpNAC1 or PpNAC5 alone. In summary, our findings demonstrate that the tandem transcription factors PpNAC1 and PpNAC5 synergistically activate the transcription of <i>PpPGF</i> to regulate fruit softening during peach fruit ripening.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anthocyanins are one of the important color-presenting substances in Zinnia elegans. In this study, an R2R3-MYB transcriptional factor ZeMYB32 was functionally characterized. Bioinformatic analysis indicated that ZeMYB32 belonged to the subgroup 4 and contained EAR repressor motif. The subcellular localization results showed that ZeMYB32 was localized on the nucleus. Stable transformation of ZeMYB32 in tobacco confirmed that ZeMYB32 significantly reduced the pigmentation of transgenic tobacco flowers and altered the flower phenotype, along with a decrease in the expression of several structural genes for anthocyanin synthesis. Yeast two-hybrid confirmed that ZeMYB32 could interact with ZeGL3, a key anthocyanin synthesis regulator from IIIf subgroup bHLH transcription factor. Moreover, transient transformation of tobacco leaves confirmed that the promoting effect of ZeMYB9 and ZeGL3 on anthocyanin synthesis was weakened by ZeMYB32, revealing that ZeMYB32 could compete with ZeMYB9 for binding to ZeGL3. Taken together, our results reveal that ZeMYB32 acts as a negative regulator of anthocyanin biosynthesis in Z. elegans.
{"title":"The R2R3-MYB transcription factor ZeMYB32 negatively regulates anthocyanin biosynthesis in Zinnia elegans","authors":"Lingli Jiang, Jiahong Chen, Jieyu Qian, Menghan Xu, Hongsheng Qing, Hefeng Cheng, Jianxin Fu, Chao Zhang","doi":"10.1007/s11103-024-01441-0","DOIUrl":"https://doi.org/10.1007/s11103-024-01441-0","url":null,"abstract":"<p>Anthocyanins are one of the important color-presenting substances in <i>Zinnia elegans</i>. In this study, an R2R3-MYB transcriptional factor ZeMYB32 was functionally characterized. Bioinformatic analysis indicated that ZeMYB32 belonged to the subgroup 4 and contained EAR repressor motif. The subcellular localization results showed that ZeMYB32 was localized on the nucleus. Stable transformation of <i>ZeMYB32</i> in tobacco confirmed that ZeMYB32 significantly reduced the pigmentation of transgenic tobacco flowers and altered the flower phenotype, along with a decrease in the expression of several structural genes for anthocyanin synthesis. Yeast two-hybrid confirmed that ZeMYB32 could interact with ZeGL3, a key anthocyanin synthesis regulator from IIIf subgroup bHLH transcription factor. Moreover, transient transformation of tobacco leaves confirmed that the promoting effect of ZeMYB9 and ZeGL3 on anthocyanin synthesis was weakened by ZeMYB32, revealing that ZeMYB32 could compete with ZeMYB9 for binding to ZeGL3. Taken together, our results reveal that ZeMYB32 acts as a negative regulator of anthocyanin biosynthesis in <i>Z. elegans</i>.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-17DOI: 10.1007/s11103-024-01436-x
Ming-Jung Liu, Jhen-Cheng Fang, Ya Ma, Geeng Loo Chong, Chun-Kai Huang, Ami Takeuchi, Natsu Takayanagi, Misato Ohtani
The recent growth in global warming, soil contamination, and climate instability have widely disturbed ecosystems, and will have a significant negative impact on the growth of plants that produce grains, fruits and woody biomass. To conquer this difficult situation, we need to understand the molecular bias of plant environmental responses and promote development of new technologies for sustainable maintenance of crop production. Accumulated molecular biological data have highlighted the importance of RNA-based mechanisms for plant stress responses. Here, we report the most advanced plant RNA research presented in the 33rd International Conference on Arabidopsis Research (ICAR2023), held as a hybrid event on June 5–9, 2023 in Chiba, Japan, and focused on “Arabidopsis for Sustainable Development Goals”. Six workshops/concurrent sessions in ICAR2023 targeted plant RNA biology, and many RNA-related topics could be found in other sessions. In this meeting report, we focus on the workshops/concurrent sessions targeting RNA biology, to share what is happening now at the forefront of plant RNA research.
{"title":"Frontiers in plant RNA research in ICAR2023: from lab to innovative agriculture","authors":"Ming-Jung Liu, Jhen-Cheng Fang, Ya Ma, Geeng Loo Chong, Chun-Kai Huang, Ami Takeuchi, Natsu Takayanagi, Misato Ohtani","doi":"10.1007/s11103-024-01436-x","DOIUrl":"https://doi.org/10.1007/s11103-024-01436-x","url":null,"abstract":"<p>The recent growth in global warming, soil contamination, and climate instability have widely disturbed ecosystems, and will have a significant negative impact on the growth of plants that produce grains, fruits and woody biomass. To conquer this difficult situation, we need to understand the molecular bias of plant environmental responses and promote development of new technologies for sustainable maintenance of crop production. Accumulated molecular biological data have highlighted the importance of RNA-based mechanisms for plant stress responses. Here, we report the most advanced plant RNA research presented in the 33rd International Conference on Arabidopsis Research (ICAR2023), held as a hybrid event on June 5–9, 2023 in Chiba, Japan, and focused on “Arabidopsis for Sustainable Development Goals”. Six workshops/concurrent sessions in ICAR2023 targeted plant RNA biology, and many RNA-related topics could be found in other sessions. In this meeting report, we focus on the workshops/concurrent sessions targeting RNA biology, to share what is happening now at the forefront of plant RNA research.</p>","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":null,"pages":null},"PeriodicalIF":5.1,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140612576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}