Plant Diversity最新文献

{"title":"Population genetic insights into the conservation of common walnut (<i>Juglans regia</i>) in Central Asia.","authors":"Linjiang Ye, Robabeh Shahi Shavvon, Hailing Qi, Hongyu Wu, Pengzhen Fan, Mohammad Nasir Shalizi, Safiullah Khurram, Mamadzhanov Davletbek, Yerlan Turuspekov, Jie Liu","doi":"10.1016/j.pld.2024.06.001","DOIUrl":"https://doi.org/10.1016/j.pld.2024.06.001","url":null,"abstract":"<p><p>The common walnut (<i>Juglans regia</i>) is one of the most economically important nut trees cultivated worldwide. Despite its importance, no comprehensive evaluation of walnut tree population genetics has been undertaken across the range where it originated, Central Asia. In this study, we investigated the genetic diversity and population structure of 1082 individuals from 46 populations across Central Asia. We found moderate genetic diversity of <i>J. regia</i> across Central Asia, with 46 populations clustered into three groups with a weak relationship between genetic and geographic distance. Our findings reveal that the western Himalaya might be the core region of common walnut genetic diversity in Central Asia and that, except for two populations in Gongliu Wild Walnut Valley, humans might have introduced walnut populations to Xinjiang, China. The observed distribution of the genetic landscape has probably been affected by historical climate fluctuation, breeding system, and prolonged anthropogenic activity. We propose the conservation of the core genetic diversity resources in the western Himalaya and pay special attention to populations from Gongliu in Xinjiang. These findings enhance our understanding of the genetic variation throughout the distribution range of <i>J</i>. <i>regia</i> in Central Asia, which will provide a key prerequisite for evidence-based conservation and management.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 5","pages":"600-610"},"PeriodicalIF":4.6,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11403145/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The mid-domain effect in flowering phenology.","authors":"Yanjun Du, Rongchen Zhang, Xinran Tang, Xinyang Wang, Lingfeng Mao, Guoke Chen, Jiangshan Lai, Keping Ma","doi":"10.1016/j.pld.2024.05.005","DOIUrl":"https://doi.org/10.1016/j.pld.2024.05.005","url":null,"abstract":"<p><p>The timing of flowering is an important driver of species distribution and community assembly patterns. However, we still have much to learn about the factors that shape flowering diversity (i.e., number of species flowering per period) in plant communities. One potential explanation of flowering diversity is the mid-domain effect, which states that geometric constraints on species ranges within a bounded domain (space or time) will yield a mid-domain peak in diversity regardless of ecological factors. Here, we determine whether the mid-domain effect explains peak flowering time (i.e., when most species of communities are flowering) across China. We used phenological data of 16,267 herbaceous and woody species from the provincial <i>Flora</i> in China and species distribution data from the Chinese Vascular Plant Distribution Database to determine relationships between the observed number of species flowering and the number of species flowering as predicted by the mid-domain effect model, as well as between three climatic variables (mean minimum monthly temperature, mean monthly precipitation, and mean monthly sunshine duration). We found that the mid-domain effect explained a significant proportion of the temporal variation in flowering diversity across all species in China. Further, the mid-domain effect explained a greater proportion of variance in flowering diversity at higher latitudes than at lower latitudes. The patterns of flowering diversity for both herbaceous and woody species were related to both the mid-domain effect and environmental variables. Our findings indicate that including geometric constraints in conjunction with abiotic and biotic predictors will improve predictions of flowering diversity patterns.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 4","pages":"502-509"},"PeriodicalIF":4.6,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390702/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular phylogeny and taxonomy of <i>Phlomoides</i> (Lamiaceae subfamily Lamioideae) in China: Insights from molecular and morphological data.","authors":"Yue Zhao, Ya-Ping Chen, Bryan T Drew, Fei Zhao, Maryam Almasi, Orzimat T Turginov, Jin-Fei Xiao, Abdul G Karimi, Yasaman Salmaki, Xiang-Qin Yu, Chun-Lei Xiang","doi":"10.1016/j.pld.2024.04.011","DOIUrl":"https://doi.org/10.1016/j.pld.2024.04.011","url":null,"abstract":"<p><p><i>Phlomoides</i>, with 150-170 species, is the second largest and perhaps most taxonomically challenging genus within the subfamily Lamioideae (Lamiaceae). With about 60 species, China is one of three major biodiversity centers of <i>Phlomoides</i>. Although some <i>Phlomoides</i> species from China have been included in previous molecular phylogenetic studies, a robust and broad phylogeny of this lineage has yet to be completed. Moreover, given the myriad new additions to the genus, the existing infrageneric classification needs to be evaluated and revised. Here, we combine molecular and morphological data to investigate relationships within <i>Phlomoides</i>, with a focus on Chinese species. We observed that plastid DNA sequences can resolve relationships within <i>Phlomoides</i> better than nuclear ribosomal internal and external transcribed spacer regions (nrITS and nrETS). Molecular phylogenetic analyses confirm the monophyly of <i>Phlomoides</i>, but most previously defined infrageneric groups are not monophyletic. In addition, morphological analysis demonstrates the significant taxonomic value of eight characters to the genus. Based on our molecular phylogenetic analyses and morphological data, we establish a novel section <i>Notochaete</i> within <i>Phlomoides</i>, and propose three new combinations as well as three new synonyms. This study presents the first molecular phylogenetic analyses of <i>Phlomoides</i> in which taxa representative of the entire genus are included, and highlights the phylogenetic and taxonomic value of several morphological characters from species of <i>Phlomoides</i> from China. Our study suggests that a taxonomic revision and reclassification for the entire genus is necessary in the future.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 4","pages":"462-475"},"PeriodicalIF":4.6,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390604/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Extremely thin but very robust: Surprising cryptogam trait combinations at the end of the leaf economics spectrum.","authors":"Tana Wuyun, Lu Zhang, Tiina Tosens, Bin Liu, Kristiina Mark, José Ángel Morales-Sánchez, Jesamine Jöneva Rikisahedew, Vivian Kuusk, Ülo Niinemets","doi":"10.1016/j.pld.2024.04.009","DOIUrl":"https://doi.org/10.1016/j.pld.2024.04.009","url":null,"abstract":"<p><p>Leaf economics spectrum (LES) describes the fundamental trade-offs between leaf structural, chemical, and physiological investments. Generally, structurally robust thick leaves with high leaf dry mass per unit area (LMA) exhibit lower photosynthetic capacity per dry mass (<i>A</i> _mass). Paradoxically, \"soft and thin-leaved\" mosses and spikemosses have very low <i>A</i> _mass, but due to minute-size foliage elements, their LMA and its components, leaf thickness (LT) and density (LD), have not been systematically estimated. Here, we characterized LES and associated traits in cryptogams in unprecedented details, covering five evolutionarily different lineages. We found that mosses and spikemosses had the lowest LMA and LT values ever measured for terrestrial plants. Across a broad range of species from different lineages, <i>A</i> _mass and LD were negatively correlated. In contrast, <i>A</i> _mass was only related to LMA when LMA was greater than 14 g cm^- ². In fact, low <i>A</i> _mass reflected high LD and cell wall thickness in the studied cryptogams. We conclude that evolutionarily old plant lineages attained poorly differentiated, ultrathin mesophyll by increasing LD. Across plant lineages, LD, not LMA, is the trait that represents the trade-off between leaf robustness and physiology in the LES.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 5","pages":"621-629"},"PeriodicalIF":4.6,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11403144/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Origin and evolution of a new tetraploid mangrove species in an intertidal zone.","authors":"Hui Feng, Achyut Kumar Banerjee, Wuxia Guo, Yang Yuan, Fuyuan Duan, Wei Lun Ng, Xuming Zhao, Yuting Liu, Chunmei Li, Ying Liu, Linfeng Li, Yelin Huang","doi":"10.1016/j.pld.2024.04.007","DOIUrl":"https://doi.org/10.1016/j.pld.2024.04.007","url":null,"abstract":"<p><p>Polyploidy is a major factor in the evolution of plants, yet we know little about the origin and evolution of polyploidy in intertidal species. This study aimed to identify the evolutionary transitions in three true-mangrove species of the genus <i>Acanthus</i> distributed in the Indo-West Pacific region. For this purpose, we took an integrative approach that combined data on morphology, cytology, climatic niche, phylogeny, and biogeography of 493 samples from 42 geographic sites. Our results show that the <i>Acanthus ilicifolius</i> lineage distributed east of the Thai-Malay Peninsula possesses a tetraploid karyotype, which is morphologically distinct from that of the lineage on the west side. The haplotype networks and phylogenetic trees for the chloroplast genome and eight nuclear genes reveal that the tetraploid species has two sub-genomes, one each from <i>A. ilicifolius</i> and <i>A</i> <i>.</i> <i>ebracteatus</i>, the paternal and maternal parents, respectively. Population structure analysis also supports the hybrid speciation history of the new tetraploid species. The two sub-genomes of the tetraploid species diverged from their diploid progenitors during the Pleistocene. Environmental niche models revealed that the tetraploid species not only occupied the near-entire niche space of the diploids, but also expanded into novel environments. Our findings suggest that <i>A. ilicifolius</i> species distributed on the east side of the Thai-Malay Peninsula should be regarded as a new species, <i>A</i>. <i>tetraploideus</i>, which originated from hybridization between <i>A. ilicifolius</i> and <i>A. ebracteatus</i>, followed by chromosome doubling. This is the first report of a true-mangrove allopolyploid species that can reproduce sexually and clonally reproduction, which explains the long-term adaptive potential of the species.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 4","pages":"476-490"},"PeriodicalIF":4.6,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390703/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetically- and environmentally-dependent processes drive interspecific and intraspecific divergence in the Chinese relict endemic genus <i>Dipteronia</i>.","authors":"Tao Zhou, Xiaodan Chen, Jordi López-Pujol, Guoqing Bai, Sonia Herrando-Moraira, Neus Nualart, Xiao Zhang, Yuemei Zhao, Guifang Zhao","doi":"10.1016/j.pld.2024.04.008","DOIUrl":"https://doi.org/10.1016/j.pld.2024.04.008","url":null,"abstract":"<p><p>China is a hotspot of relict plant species that were once widespread throughout the Northern Hemisphere. Recent research has demonstrated that the occurrence of long-term stable refugia in the mountainous regions of central and south-western China allowed their persistence through the late Neogene climate fluctuations. One of these relict lineages is <i>Dipteronia</i>, an oligotypic tree genus with a fossil record extending to the Paleocene. Here, we investigated the genetic variability, demographic dynamics and diversification patterns of the two currently recognized <i>Dipteronia</i> species (<i>D</i> <i>ipteronia</i> <i>sinensis</i> and <i>D</i> <i>.</i> <i>dyeriana</i>). Molecular data were obtained from 45 populations of <i>Dipteronia</i> by genotyping three cpDNA regions, two single copy nuclear genes and 15 simple sequence repeat loci. The genetic study was combined with niche comparison analyses on the environmental space, ecological niche modeling, and landscape connectivity analysis. We found that the two <i>Dipteronia</i> species have highly diverged both in genetic and ecological terms. Despite the incipient speciation processes that can be observed in <i>D. sinensis</i>, the occurrence of long-term stable refugia and, particularly, a dispersal corridor along Daba Shan-west Qinling, likely ensured its genetic and ecological integrity to date. Our study will not only help us to understand how populations of <i>Dipteronia</i> species responded to the tectonic and climatic changes of the Cenozoic, but also provide insight into how Arcto-Tertiary relict plants in East Asia survived, evolved, and diversified.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 5","pages":"585-599"},"PeriodicalIF":4.6,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11403150/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative analysis shows high level of lineage sorting in genomic regions with low recombination in the extended <i>Picea likiangensis</i> species complex.","authors":"Hui Zhu, Weixiao Lei, Qing Lai, Yongshuai Sun, Dafu Ru","doi":"10.1016/j.pld.2024.04.004","DOIUrl":"https://doi.org/10.1016/j.pld.2024.04.004","url":null,"abstract":"<p><p>•Phylogenomic analysis uncovers widespread discordance in the extended <i>Picea likiangensis</i> complex.•Introgression (54.99%) and incomplete lineage sorting (ILS; 33.12%) are key drivers of this incongruity.•Recombination rates shape ILS and introgression, with high rates correlating with elevated levels.•Genes linked to abiotic stress responses exhibit significant introgression and ILS, suggesting adaptive evolution.•Lower recombination rates improve accuracy in species relationships.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 4","pages":"547-550"},"PeriodicalIF":4.6,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390601/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epigenetic control on transcription of vernalization genes and whole-genome gene expression profile induced by vernalization in common wheat.","authors":"Yunzhen Li, Liujie Jin, Xinyu Liu, Chao He, Siteng Bi, Sulaiman Saeed, Wenhao Yan","doi":"10.1016/j.pld.2024.02.005","DOIUrl":"10.1016/j.pld.2024.02.005","url":null,"abstract":"<p><p>Vernalization is necessary for winter wheat to flower. However, it is unclear whether vernalization is also required for spring wheat, which is frequently sown in fall, and what molecular mechanisms underlie the vernalization response in wheat varieties. In this study, we examined the molecular mechanisms that regulate vernalization response in winter and spring wheat varieties. For this purpose, we determined how major vernalization genes (<i>VRN1</i>, <i>VRN2</i>, and <i>VRN3</i>) respond to vernalization in these varieties and whether modifications to histones play a role in changes in gene expression. We also identified genes that are differentially regulated in response to vernalization in winter and spring wheat varieties. We found that in winter wheat, but not in spring wheat, <i>VRN1</i> expression decreases when returned to warm temperature following vernalization. This finding may be associated with differences between spring and winter wheat in the levels of tri-methylation of lysine 27 on histone H3 (H3K27me3) and tri-methylation of lysine 4 on histone H3 (H3K4me3) at the <i>VRN1</i> gene. Analysis of winter wheat transcriptomes before and after vernalization revealed that vernalization influences the expression of several genes, including those involved in leucine catabolism, cysteine biosynthesis, and flavonoid biosynthesis. These findings provide new candidates for further study on the mechanism of vernalization regulation in wheat.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 3","pages":"386-394"},"PeriodicalIF":4.8,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11119517/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141155706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stomatal dynamics are regulated by leaf hydraulic traits and guard cell anatomy in nine true mangrove species.","authors":"Ya-Dong Qie, Qi-Wei Zhang, Scott A M McAdam, Kun-Fang Cao","doi":"10.1016/j.pld.2024.02.003","DOIUrl":"10.1016/j.pld.2024.02.003","url":null,"abstract":"<p><p>Stomatal regulation is critical for mangroves to survive in the hyper-saline intertidal zone where water stress is severe and water availability is highly fluctuant. However, very little is known about the stomatal sensitivity to vapour pressure deficit (VPD) in mangroves, and its co-ordination with stomatal morphology and leaf hydraulic traits. We measured the stomatal response to a step increase in VPD <i>in situ</i>, stomatal anatomy, leaf hydraulic vulnerability and pressure-volume traits in nine true mangrove species of five families and collected the data of genome size. We aimed to answer two questions: (1) Does stomatal morphology influence stomatal dynamics in response to a high VPD in mangroves? with a consideration of possible influence of genome size on stomatal morphology; and (2) do leaf hydraulic traits influence stomatal sensitivity to VPD in mangroves? We found that the stomata of mangrove plants were highly sensitive to a step rise in VPD and the stomatal responses were directly affected by stomatal anatomy and hydraulic traits. Smaller, denser stomata was correlated with faster stomatal closure at high VPD across the species of Rhizophoraceae, and stomata size negatively and vein density positively correlated with genome size. Less negative leaf osmotic pressure at the full turgor (π_o) was related to higher operating steady-state stomatal conductance (<i>g</i>_s); and a higher leaf capacitance (<i>C</i>_leaf) and more embolism resistant leaf xylem were associated with slower stomatal responses to an increase in VPD. In addition, stomatal responsiveness to VPD was indirectly affected by leaf morphological traits, which were affected by site salinity and consequently leaf water status. Our results demonstrate that mangroves display a unique relationship between genome size, stomatal size and vein packing, and that stomatal responsiveness to VPD is regulated by leaf hydraulic traits and stomatal morphology. Our work provides a quantitative framework to better understand of stomatal regulation in mangroves in an environment with high salinity and dynamic water availability.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"46 3","pages":"395-405"},"PeriodicalIF":4.8,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11119510/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141155708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"pyIFPNI: A package for querying and downloading plant fossil data from the IFPNI","authors":"Bailong Zhao","doi":"10.1016/j.pld.2023.12.001","DOIUrl":"https://doi.org/10.1016/j.pld.2023.12.001","url":null,"abstract":"","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"102 s406","pages":""},"PeriodicalIF":4.8,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138622542","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}