Plant Diversity最新文献

筛选
英文 中文
Historical biogeography and evolutionary diversification of Lilium (Liliaceae): New insights from plastome phylogenomics. 百合花(百合科)的历史生物地理学和进化多样性:质体系统发生组学的新见解。
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-08-03 eCollection Date: 2024-03-01 DOI: 10.1016/j.pld.2023.07.009
Nian Zhou, Ke Miao, Changkun Liu, Linbo Jia, Jinjin Hu, Yongjiang Huang, Yunheng Ji
{"title":"Historical biogeography and evolutionary diversification of <i>Lilium</i> (Liliaceae): New insights from plastome phylogenomics.","authors":"Nian Zhou, Ke Miao, Changkun Liu, Linbo Jia, Jinjin Hu, Yongjiang Huang, Yunheng Ji","doi":"10.1016/j.pld.2023.07.009","DOIUrl":"10.1016/j.pld.2023.07.009","url":null,"abstract":"<p><p>Here, we infer the historical biogeography and evolutionary diversification of the genus <i>Lilium</i>. For this purpose, we used the complete plastomes of 64 currently accepted species in the genus <i>Lilium</i> (14 plastomes were newly sequenced) to recover the phylogenetic backbone of the genus and a time-calibrated phylogenetic framework to estimate biogeographical history scenarios and evolutionary diversification rates of <i>Lilium</i>. Our results suggest that ancient climatic changes and geological tectonic activities jointly shaped the distribution range and drove evolutionary radiation of <i>Lilium</i>, including the Middle Miocene Climate Optimum (MMCO), the late Miocene global cooling, as well as the successive uplift of the Qinghai-Tibet Plateau (QTP) and the strengthening of the monsoon climate in East Asia during the late Miocene and the Pliocene. This case study suggests that the unique geological and climatic events in the Neogene of East Asia, in particular the uplift of QTP and the enhancement of monsoonal climate, may have played an essential role in formation of uneven distribution of plant diversity in the Northern Hemisphere.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11128834/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87663637","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}
引用次数: 0
Patterns and drivers of plant sexual systems in the dry-hot valley region of southwestern China. 中国西南干热河谷地区植物有性系统的模式和驱动因素。
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-08-03 eCollection Date: 2024-03-01 DOI: 10.1016/j.pld.2023.07.010
Rong Ma, Qi Xu, Yongqian Gao, Deli Peng, Hang Sun, Bo Song
{"title":"Patterns and drivers of plant sexual systems in the dry-hot valley region of southwestern China.","authors":"Rong Ma, Qi Xu, Yongqian Gao, Deli Peng, Hang Sun, Bo Song","doi":"10.1016/j.pld.2023.07.010","DOIUrl":"10.1016/j.pld.2023.07.010","url":null,"abstract":"<p><p>Sexual systems play important roles in angiosperm evolution and exhibit substantial variations among different floras. Thus, studying their evolution in a whole flora is crucial for understanding the formation and maintenance of plant biodiversity and predicting its responses to environmental change. In this study, we determined the patterns of plant sexual systems and their associations with geographic elements and various life-history traits in dry-hot valley region of southwestern China, an extremely vulnerable ecosystem. Of the 3166 angiosperm species recorded in this area, 74.5% were hermaphroditic, 13.5% were monoecious and 12% were dioecious, showing a high incidence of diclinous species. Diclinous species were strongly associated with tropical elements, whereas hermaphroditic species were strongly associated with temperate and cosmopolitan elements. We also found that hermaphroditism was strongly associated with showy floral displays, specialist entomophily, dry fruits and herbaceous plants. Dioecy was strongly associated with inconspicuous, pale-colored flowers, generalist entomophily, fleshy fruits, and woody plants, whereas monoecy was strongly associated with inconspicuous, pale-colored flowers, anemophily, dry fruits, and herbaceous plants. In addition, hermaphroditic species with generalist entomophily tended to flower in the dry season, whereas diclinous species with specialist entomophily tended to flower in the rainy season. However, independent of sexual systems, plants that produce dry fruits tended to flower in the rainy season and set fruits in the dry season, but the opposite pattern was found for fleshy fruit-producing plants. Our results suggest that in the dry-hot valleys, plant sexual systems are associated with geographic elements as well as various life-history traits that are sensitive to environmental change.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11128841/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89167458","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}
引用次数: 0
A phylogenetic approach identifies patterns of beta diversity and floristic subregions of the Qinghai-Tibet Plateau. 系统发生学方法确定了青藏高原的贝塔多样性模式和植物亚区系。
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-07-21 eCollection Date: 2024-01-01 DOI: 10.1016/j.pld.2023.07.006
Haibin Yu, Man Yang, Zixin Lu, Weitao Wang, Fangyuan Yu, Yonghua Zhang, Xue Yin, Hongjun Yu, Junjie Hu, David C Deane
{"title":"A phylogenetic approach identifies patterns of beta diversity and floristic subregions of the Qinghai-Tibet Plateau.","authors":"Haibin Yu, Man Yang, Zixin Lu, Weitao Wang, Fangyuan Yu, Yonghua Zhang, Xue Yin, Hongjun Yu, Junjie Hu, David C Deane","doi":"10.1016/j.pld.2023.07.006","DOIUrl":"10.1016/j.pld.2023.07.006","url":null,"abstract":"<p><p>Patterns of taxonomic and phylogenetic beta diversity and their relationships with environmental correlates can help reveal the origin and evolutionary history of regional biota. The Qinghai-Tibet Plateau (QTP) harbors an exceptionally diverse flora, however, a phylogenetic perspective has rarely been used to investigate its beta diversity and floristic regions. In this study, we used a phylogenetic approach to identify patterns of beta diversity and quantitatively delimit floristic regions on the Qinghai-Tibet Plateau. We also examined the relationships between multifaceted beta diversity, geographical distance, and climatic difference, and evaluated the relative importance of various factors (i.e., climate, topography and history) in shaping patterns of beta diversity. Sørensen dissimilarity indices indicated that patterns of species turnover among sites dominated the QTP. We also found that patterns of both taxonomic and phylogenetic beta diversity were significantly related to geographical distance and climatic difference. The environmental factors that contributed most to these patterns of beta diversity include annual precipitation, mean annual temperature, climatic gradients and climatic instability. Hierarchical dendrograms of dissimilarity and non-metric multidimensional scaling ordination based on phylogenetic beta diversity data identified ten floristic subregions in the QTP. Our results suggest that the contemporary environment and historical climate changes have filtered species composition among sites and eventually determined beta diversity patterns of plants in the QTP.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10851290/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72592734","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}
引用次数: 0
Community structure and species diversity dynamics of a subtropical evergreen broad-leaved forest in China: 2005 to 2020. 中国亚热带常绿阔叶林的群落结构和物种多样性动态:2005 年至 2020 年。
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-07-20 eCollection Date: 2024-01-01 DOI: 10.1016/j.pld.2023.07.005
Shi-Guang Wei, Lin Li, Kun-Dong Bai, Zhi-Feng Wen, Jing-Gang Zhou, Qin Lin
{"title":"Community structure and species diversity dynamics of a subtropical evergreen broad-leaved forest in China: 2005 to 2020.","authors":"Shi-Guang Wei, Lin Li, Kun-Dong Bai, Zhi-Feng Wen, Jing-Gang Zhou, Qin Lin","doi":"10.1016/j.pld.2023.07.005","DOIUrl":"10.1016/j.pld.2023.07.005","url":null,"abstract":"<p><p>Here, we characterize the temporal and spatial dynamics of forest community structure and species diversity in a subtropical evergreen broad-leaved forest in China. We found that community structure in this forest changed over a 15-year period. Specifically, renewal and death of common species was large, with the renewal of individuals mainly concentrated within a few populations, especially those of <i>Aidia canthioides</i> and <i>Cryptocarya concinna</i>. The numbers of individual deaths for common species were concentrated in the small and mid-diameter level. The spatial distribution of community species diversity fluctuated in each monitoring period, showing a more dispersed diversity after the 15-year study period, and the coefficient of variation on quadrats increased. In 2010, the death and renewal of the community and the spatial variation of species diversity were different compared to other survey years. Extreme weather may have affected species regeneration and community stability in our subtropical monsoon evergreen broad-leaved forests. Our findings suggest that strengthening the monitoring and management of the forest community will help better understand the long- and short-term causes of dynamic fluctuations of community structure and species diversity, and reveal the factors that drive changes in community structure.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10851295/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77517033","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}
引用次数: 0
Phylotranscriptomic discordance is best explained by incomplete lineage sorting within Allium subgenus Cyathophora and thus hemiplasy accounts for interspecific trait transition. 系统转录组不一致的最佳解释是薤白亚属 Cyathophora 内不完全的世系分类,因此半混杂现象是种间性状转变的原因。
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-07-17 eCollection Date: 2024-01-01 DOI: 10.1016/j.pld.2023.07.004
Zengzhu Zhang, Gang Liu, Minjie Li
{"title":"Phylotranscriptomic discordance is best explained by incomplete lineage sorting within <i>Allium</i> subgenus <i>Cyathophora</i> and thus hemiplasy accounts for interspecific trait transition.","authors":"Zengzhu Zhang, Gang Liu, Minjie Li","doi":"10.1016/j.pld.2023.07.004","DOIUrl":"10.1016/j.pld.2023.07.004","url":null,"abstract":"<p><p>The transition of traits between genetically related lineages is a fascinating topic that provides clues to understanding the drivers of speciation and diversification. Much can be learned about this process from phylogeny-based trait evolution. However, such inference is often plagued by genome-wide gene-tree discordance (GTD), mostly due to incomplete lineage sorting (ILS) and/or introgressive hybridization, especially when the genes underlying the traits appear discordant. Here, by collecting transcriptomes, whole chloroplast genomes (cpDNA), and population genetic datasets, we used the coalescent model to turn GTD into a source of information for ILS and employed hemiplasy to explain specific cases of apparent \"phylogenetic discordance\" between different morphological traits and probable species phylogeny in the <i>Allium</i> subg. <i>Cyathophora</i>. Both concatenation and coalescence methods consistently showed the same phylogenetic topology for species tree inference based on single-copy genes (SCGs), as supported by the K<sub>S</sub> distribution. However, GTD was high across the genomes of subg. <i>Cyathophora</i>: ∼27%-38.9% of the SCG trees were in conflict with the species tree. Plasmid and nuclear incongruence was also present. Our coalescent simulations indicated that such GTD was mainly a product of ILS. Our hemiplasy risk factor calculations supported that random fixation of ancient polymorphisms in different populations during successive speciation events along the subg. <i>Cyathophora</i> phylogeny may have caused the character transition, as well as the anomalous cpDNA tree. Our study exemplifies how phylogenetic noise can be transformed into evolutionary information for understanding character state transitions along species phylogenies.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10851291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75983921","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}
引用次数: 0
Sex-specific facilitation and reproduction of the gynodioecious cushion plant Arenaria polytrichoides on the Himalaya-Hengduan mountains, SW China. 中国西南部喜马拉雅-横断山脉上雌雄异株垫生植物Arenaria polytrichoides的性别特异性促进和繁殖。
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-07-14 eCollection Date: 2024-03-01 DOI: 10.1016/j.pld.2023.07.002
Xufang Chen, Yazhou Zhang, Lishen Qian, Renyu Zhou, Hang Sun, Jianguo Chen
{"title":"Sex-specific facilitation and reproduction of the gynodioecious cushion plant <i>Arenaria polytrichoides</i> on the Himalaya-Hengduan mountains, SW China.","authors":"Xufang Chen, Yazhou Zhang, Lishen Qian, Renyu Zhou, Hang Sun, Jianguo Chen","doi":"10.1016/j.pld.2023.07.002","DOIUrl":"10.1016/j.pld.2023.07.002","url":null,"abstract":"<p><p>When benefiting other beneficiaries, cushion plants may reciprocally receive feedback effects. The feedback effects on different sex morphs, however, remains unclear. In this study, taking the gynodioecious <i>Arenaria polytrichiodes</i> as a model species, we aimed to assess the sex-specific facilitation intensity of cushion plant by measuring the beneficiary cover ratio, and to assess the potential costs in cushion reproductive functions by measuring the flower and fruit cover ratios. The total beneficiary cover ratio was similar between females and hermaphrodites. Females produced much less flowers but more fruits than hermaphrodites. These results suggested that females and hermaphrodites possess similar facilitation intensity, and female cushion <i>A</i>. <i>polytrichoides</i> may allocate more resources saved from pollen production to seed production, while hermaphrodites possibly allocate more resources to pollen production hence reducing seed production. The surface areas covered by beneficiaries produced less flowers and fruits than areas without beneficiaries. In addition, strong negative correlations between beneficiary cover and flower cover were detected for both females and hermaphrodites, but the correlation strength were similar for these two sex morphs. However, the correlation between beneficiary cover and fruit cover was only significantly negative for females, suggesting that beneficiary plants negatively affect fruit reproduction of females while have neutral effects on hermaphrodites. All the results suggest that to facilitate other beneficiaries can induce reproductive costs on cushion <i>A. polytrichoides</i>, with females possibly suffering greater cost than hermaphrodites. Such differentiation in reproductive costs between sex morphs, in long-term perspective, may imply sex imbalance in population dynamics.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11128911/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81482590","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}
引用次数: 0
Lipid concentration and composition in xylem sap of woody angiosperms from a tropical savanna and a seasonal rainforest. 热带稀树草原和季节性热带雨林中木质被子植物木质部汁液中的脂质浓度和组成。
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-07-05 eCollection Date: 2024-01-01 DOI: 10.1016/j.pld.2023.07.001
Ling-Bo Huang, Xinyi Guan, Amy Ny Aina Aritsara, Jun-Jie Zhu, Steven Jansen, Kun-Fang Cao
{"title":"Lipid concentration and composition in xylem sap of woody angiosperms from a tropical savanna and a seasonal rainforest.","authors":"Ling-Bo Huang, Xinyi Guan, Amy Ny Aina Aritsara, Jun-Jie Zhu, Steven Jansen, Kun-Fang Cao","doi":"10.1016/j.pld.2023.07.001","DOIUrl":"10.1016/j.pld.2023.07.001","url":null,"abstract":"<p><p>Lipids may play an important role in preventing gas embolisms by coating nanobubbles in xylem sap. Few studies on xylem sap lipids have been reported for temperate plants, and it remain unclear whether sap lipids have adaptational significance in tropical plants. In this study, we quantify the lipid composition of xylem sap for angiosperm species from a tropical savanna (seven species) and a seasonal rainforest (five species) using mass spectrometry. We found that all twelve species studied contained lipids in their xylem sap, including galactolipids, phospholipids and triacylglycerol, with a total lipid concentration ranging from 0.09 to 0.26 nmol/L. There was no difference in lipid concentration or composition between plants from the two sites, and the lipid concentration was negatively related to species' open vessel volume. Furthermore, savanna species showed little variation in lipid composition between the dry and the rainy season. These results support the hypothesis that xylem sap lipids are derived from the cytoplasm of individual conduit cells, remain trapped inside individual conduits, and undergo few changes in composition over consecutive seasons. A xylem sap lipidomic data set, which includes 12 tropical tree species from this study and 11 temperate tree species from literature, revealed no phylogenetic signals in lipid composition for these species. This study fills a knowledge gap in the lipid content of xylem sap in tropical trees and provides additional support for their common distribution in xylem sap of woody angiosperms. It appears that xylem sap lipids have no adaptive significance.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10851283/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89843780","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}
引用次数: 0
Functional diversity in an Andean subpáramo affected by wildfire in Colombia 受哥伦比亚野火影响的安第斯山脉subpáramo的功能多样性
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-07-01 DOI: 10.1016/j.pld.2022.11.007
Korina Ocampo-Zuleta , Ángela Parrado-Rosselli
{"title":"Functional diversity in an Andean subpáramo affected by wildfire in Colombia","authors":"Korina Ocampo-Zuleta ,&nbsp;Ángela Parrado-Rosselli","doi":"10.1016/j.pld.2022.11.007","DOIUrl":"10.1016/j.pld.2022.11.007","url":null,"abstract":"<div><p>Recently, the Andean subpáramo in Colombia has experienced severe wildfires, but little is known about the functional composition of recovering or not after a wildfire. Therefore, we examined the functional community composition subpáramo affected by fire in 2016. We documented how functional traits changed 31 months after the disturbance and compared them with an unburned site. We sampled from one to two years after the fire every four months, then registered all recruits in 16 5 × 5m plots. New individuals were classified into strategy functional groups based on the traits of persistence and dispersal. The first group was stem type and regeneration mechanism (seedling and resprout), and the second was fruit type and dispersal mode. We investigated the degree to which functional diversity changes plant communities over time (woody and non-woody), and we compared it with an unburned site. The most relevant results showed that resprouts and seed regenerated increased post-fire time and significant differences between sampling periods. The anemochory is the most relevant dispersal mode that indicates the community capacity to colonize the new gaps opened by the fire rapidly. We discuss how wildfire appears to be a triggering factor for persistence and dispersal strategy groups in subpáramo burned given their characteristics of tolerance to stress. For this reason, a greater functional divergence between the ecosystems studied post-fire recovery has been related to higher levels of biodiversity at the landscape scale due to the high degree of endemism and significant differences in species composition between páramos.</p></div>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7e/9a/main.PMC10436060.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10052160","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}
引用次数: 2
Phylogeny of Trigonotis in China—with a special reference to its nutlet morphology and plastid genome 中国三角果属植物的系统发育——以其坚果形态和质体基因组为例
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-07-01 DOI: 10.1016/j.pld.2023.03.004
Xue-Min Xu , Dan-Hui Liu , Shi-Xin Zhu , Zhen-Long Wang , Zhen Wei , Quan-Ru Liu
{"title":"Phylogeny of Trigonotis in China—with a special reference to its nutlet morphology and plastid genome","authors":"Xue-Min Xu ,&nbsp;Dan-Hui Liu ,&nbsp;Shi-Xin Zhu ,&nbsp;Zhen-Long Wang ,&nbsp;Zhen Wei ,&nbsp;Quan-Ru Liu","doi":"10.1016/j.pld.2023.03.004","DOIUrl":"https://doi.org/10.1016/j.pld.2023.03.004","url":null,"abstract":"<div><p>The genus <em>Trigonotis</em> comprises nearly 60 species mainly distributed in East and Southeast Asia. China has the largest number of <em>Trigonotis</em> species in the world, with a total of 44 species, of which 38 are endemic. Nutlet morphology is useful for the taxonomic delimitation of <em>Trigonotis</em>. However, there are still controversial circumscriptions of nutlet shape in some species. In previous studies, interspecies phylogenetic relationships were inferred using few DNA markers and very few taxa, which possibly led to erroneous or incomplete conclusions. In this study, the nutlet morphology of 39 <em>Trigonotis</em> taxa and the characteristics of 34 complete chloroplast genomes (29 taxa) were investigated and analyzed. Then, the phylogenetic relationships were discussed within this genus based on complete chloroplast genomes. To the best of our knowledge, this study is the first comprehensive analysis of nutlet morphology and complete chloroplast genome of <em>Trigonotis</em>. Based on nutlet morphology, <em>Trigonotis</em> can be divided into two groups: Group 1, hemispherical or oblique tetrahedron with carpopodiums, and Group 2, inverted tetrahedron without carpopodiums<em>.</em> The chloroplast genome of <em>Trigonotis</em> exhibited a typical quadripartite structure, including 84–86 protein-coding, 37 transfer RNA, and 8 ribosomal RNA genes, with a total length of 147,247–148,986 bp. Genes in the junctions were well conserved in <em>Trigonotis</em>, similar to those in other Boraginaceae s.str. species. Furthermore, <em>Trigonotis</em> chloroplast genomes showed relatively high diversity, with more conserved genic regions than intergenic regions; in addition, we detected 14 hot spots (Pi &gt; 0.005) in non-coding regions. Phylogenetic analyses based on chloroplast genome data identified highly resolved relationships between <em>Trigonotis</em> species. Specifically, <em>Trigonotis</em> was divided into two clades with strong support: one clade included species with hemispherical or oblique tetrahedron nutlets with carpopodiums and bracts, whereas the other clade included species with inverted tetrahedron nutlets without carpopodiums or bracts. Our results may inform future taxonomic, phylogenetic, and evolutionary studies on Boraginaceae.</p></div>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49894973","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}
引用次数: 2
Endemic medicinal plant distribution correlated with stable climate, precipitation, and cultural diversity 地方性药用植物分布与稳定的气候、降水和文化多样性相关
IF 4.8 1区 生物学
Plant Diversity Pub Date : 2023-07-01 DOI: 10.1016/j.pld.2022.09.007
Gang Feng , Ying-Jie Xiong , Hua-Yu Wei , Yao Li , Ling-Feng Mao
{"title":"Endemic medicinal plant distribution correlated with stable climate, precipitation, and cultural diversity","authors":"Gang Feng ,&nbsp;Ying-Jie Xiong ,&nbsp;Hua-Yu Wei ,&nbsp;Yao Li ,&nbsp;Ling-Feng Mao","doi":"10.1016/j.pld.2022.09.007","DOIUrl":"10.1016/j.pld.2022.09.007","url":null,"abstract":"<div><p>Medicinal plants provide crucial ecosystem services, especially in developing countries such as China, which harbors diverse endemic medicinal plant species with substantial cultural and economic value. Accordingly, understanding the patterns and drivers of medicinal plant distribution is critical. However, few studies have investigated the patterns and drivers of endemic medicinal plants distribution in China. Here, we linked endemic medicinal plants distribution with possible explanatory variables, i.e., paleoclimate change, contemporary climate, altitudinal range and ethnic minority human population size at the prefecture city level in China. Our results show that endemic medicinal plants are concentrated in southern China, especially in southwestern China. Notably, both endemic medicinal plant species richness and the ratio of endemic medicinal plant species richness are negatively associated with glacial-interglacial anomaly in temperature, and positively associated with contemporary precipitation and altitudinal range. In addition, we found that endemic medicinal plant species richness is positively associated with ethnic minority population sizes as well as its ratio to the overall population size. These findings suggest that the distribution of endemic medicinal plants is determined by multiple drivers. Furthermore, our findings stress that dramatic future climate changes and massive anthropogenic activities in southern China pose great challenges to the conservation of China's endemic medicinal plants.</p></div>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/72/48/main.PMC10435908.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10050577","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}
引用次数: 3
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信