Plant Diversity最新文献

{"title":"Latitudinal patterns of tree β-diversity and relevant ecological processes vary across spatial extents in forests of southeastern China.","authors":"Maochou Liu, Wenxiang Wu, Ke Wang, Xinshuai Ren, Xueqin Zhang, Lei Wang, Jing Geng, Bo Yang","doi":"10.1016/j.pld.2024.11.003","DOIUrl":"10.1016/j.pld.2024.11.003","url":null,"abstract":"<p><p>Latitudinal patterns of tree β-diversity reveal important insights into the biogeographical processes that influence forest ecosystems. Although previous studies have extensively documented β-diversity within relatively small spatial extents, the potential drivers of β-diversity along latitudinal gradients are still not well understood at larger spatial extents. In this study, we determined whether tree β-diversity is correlated with latitude in forests of southeastern China, and if so, what ecological processes contribute to these patterns of tree β-diversity. We specifically aimed to disentangle the relative contributions from interspecific aggregation and environmental filtering across various spatial extents. We delineated regional communities comprising multiple nearby national forest inventory (NFI) plots around random focal plots. The number of NFI plots in a regional community served as a surrogate for spatial extent. We also used a null model to simulate randomly assembled communities and quantify the deviation (β-deviation) between observed and expected β-diversity. We found that β-diversity decreased along a latitudinal gradient and that this pattern was clearer at larger spatial extents. In addition, latitudinal patterns of β-deviation were explained by the degree of species spatial aggregation. We also identified environmental factors that drive β-deviation in these forests, including precipitation, seasonality, and temperature variation. At larger spatial extents, these environmental variables explained up to 84% of the β-deviation. Our results reinforce that ecological processes are scale-dependent and collectively contribute to the β-gradient in subtropical forests. We recommend that conservation efforts maintain diverse forests and heterogeneous environments at multiple spatial extents to mitigate the adverse effects of climate change.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 1","pages":"89-97"},"PeriodicalIF":4.6,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11873649/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557769","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 evolutionarily diverged single-stranded DNA-binding proteins SSB1/SSB2 differentially affect the replication, recombination and mutation of organellar genomes in <i>Arabidopsis thaliana</i>.","authors":"Weidong Zhu, Jie Qian, Yingke Hou, Luke R Tembrock, Liyun Nie, Yi-Feng Hsu, Yong Xiang, Yi Zou, Zhiqiang Wu","doi":"10.1016/j.pld.2024.11.001","DOIUrl":"10.1016/j.pld.2024.11.001","url":null,"abstract":"<p><p>Single-stranded DNA-binding proteins (SSBs) play essential roles in the replication, recombination and repair processes of organellar DNA molecules. In <i>Arabidopsis thaliana</i>, SSBs are encoded by a small family of two genes (<i>SSB1</i> and <i>SSB2</i>). However, the functional divergence of these two <i>SSB</i> copies in plants remains largely unknown, and detailed studies regarding their roles in the replication and recombination of organellar genomes are still incomplete. In this study, phylogenetic, gene structure and protein motif analyses all suggested that SSB1 and SSB2 probably diverged during the early evolution of seed plants. Based on accurate long-read sequencing results, <i>ssb1</i> and <i>ssb2</i> mutants had decreased copy numbers for both mitochondrial DNA (mtDNA) and plastid DNA (ptDNA), accompanied by a slight increase in structural rearrangements mediated by intermediate-sized repeats in mt genome and small-scale variants in both genomes. Our findings provide an important foundation for further investigating the effects of DNA dosage in the regulation of mutation frequencies in plant organellar genomes.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 1","pages":"127-135"},"PeriodicalIF":4.6,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11873582/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557777","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":"Subgenome asymmetry of gibberellins-related genes plays important roles in regulating rapid growth of bamboos.","authors":"Ling Mao, Cen Guo, Liang-Zhong Niu, Yu-Jiao Wang, Guihua Jin, Yi-Zhou Yang, Ke-Cheng Qian, Yang Yang, Xuemei Zhang, Peng-Fei Ma, De-Zhu Li, Zhen-Hua Guo","doi":"10.1016/j.pld.2024.10.004","DOIUrl":"10.1016/j.pld.2024.10.004","url":null,"abstract":"<p><p>Rapid growth is an innovative trait of woody bamboos that has been widely studied. However, the genetic basis and evolution of this trait are poorly understood. Taking advantage of genomic resources of 11 representative bamboos at different ploidal levels, we integrated morphological, physiological, and transcriptomic datasets to investigate rapid growth. In particular, these bamboos include two large-sized and a small-sized woody species, compared with a diploid herbaceous species. Our results showed that gibberellin A1 was important for the rapid shoot growth of the world's largest bamboo, <i>Dendrocalamus sinicus</i>, and indicated that two gibberellins (GAs)-related genes, <i>KAO</i> and <i>SLRL1</i>, were key to the rapid shoot growth and culm size in woody bamboos. The expression of GAs-related genes exhibited significant subgenome asymmetry with subgenomes A and C demonstrating expression dominance in the large-sized woody bamboos while the generally submissive subgenomes B and D dominating in the small-sized species. The subgenome asymmetry was found to be correlated with the subgenome-specific gene structure, particularly UTRs and core promoters. Our study provides novel insights into the molecular mechanism and evolution of rapid shoot growth following allopolyploidization in woody bamboos, particularly via subgenome asymmetry. These findings are helpful for understanding of how polyploidization in general and subgenome asymmetry in particular contributed to the origin of innovative traits in plants.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 1","pages":"68-81"},"PeriodicalIF":4.6,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11873579/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557773","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":"New insights into the phylogeny and infrageneric taxonomy of <i>Saussurea</i> based on hybrid capture phylogenomics (Hyb-Seq).","authors":"Liansheng Xu, Zhuqiu Song, Tian Li, Zichao Jin, Buyun Zhang, Siyi Du, Shuyuan Liao, Xingjie Zhong, Yousheng Chen","doi":"10.1016/j.pld.2024.10.003","DOIUrl":"10.1016/j.pld.2024.10.003","url":null,"abstract":"<p><p><i>Saussurea</i> is one of the largest and most rapidly evolving genera within the Asteraceae, comprising approximately 520 species from the Northern Hemisphere. A comprehensive infrageneric classification, supported by robust phylogenetic trees and corroborated by morphological and other data, has not yet been published. For the first time, we recovered a well-resolved nuclear phylogeny of <i>Saussurea</i> consisting of four main clades, which was also supported by morphological data. Our analyses show that ancient hybridization is the most likely source of deep cytoplasmic-nuclear conflict in <i>Saussurea</i>, and a phylogeny based on nuclear data is more suitable than one based on chloroplast data for exploring the infrageneric classification of <i>Saussurea</i>. Based on the nuclear phylogeny obtained and morphological characters, we proposed a revised infrageneric taxonomy of <i>Saussurea</i>, which includes four subgenera and 13 sections. Specifically, 1) <i>S</i>. sect. <i>Cincta</i>, <i>S</i>. sect. <i>Gymnocline, S</i>. sect. <i>Lagurostemon</i>, and <i>S</i>. sect. <i>Strictae</i> were moved from <i>S</i>. subg. <i>Saussurea</i> to <i>S</i>. subg. <i>Amphilaena</i>, 2) <i>S</i>. sect. <i>Pseudoeriocoryne</i> was moved from <i>S</i>. subg. <i>Eriocoryne</i> to <i>S</i>. subg. <i>Amphilaena</i>, and 3) <i>S</i>. sect. <i>Laguranthera</i> was moved from <i>S</i>. subg. <i>Saussurea</i> to <i>S</i>. subg. <i>Theodorea</i>.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 1","pages":"21-33"},"PeriodicalIF":4.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11873585/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557771","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":"Assembly-free reads accurate identification (AFRAID) approach outperforms other methods of DNA barcoding in the walnut family (Juglandaceae).","authors":"Yanlei Liu, Kai Chen, Lihu Wang, Xinqiang Yu, Chao Xu, Zhili Suo, Shiliang Zhou, Shuo Shi, Wenpan Dong","doi":"10.1016/j.pld.2024.10.002","DOIUrl":"10.1016/j.pld.2024.10.002","url":null,"abstract":"<p><p>DNA barcoding has been extensively used for species identification. However, species identification of mixed samples or degraded DNA is limited by current DNA barcoding methods. In this study, we use plant species in Juglandaceae to evaluate an assembly-free reads accurate identification (AFRAID) method of species identification, a novel approach for precise species identification in plants. Specifically, we determined (1) the accuracy of DNA barcoding approaches in delimiting species in Juglandaceae, (2) the minimum size of chloroplast dataset for species discrimination, and (3) minimum amount of next generation sequencing (NGS) data required for species identification. We found that species identification rates were highest when whole chloroplast genomes were used, followed by taxon-specific DNA barcodes, and then universal DNA barcodes. Species identification of 100% was achieved when chloroplast genome sequence coverage reached 20% and the original sequencing data reached 500,000 reads. AFRAID accurately identified species for all samples tested after 500,000 clean reads, with far less computing time than common approaches. These results provide a new approach to accurately identify species, overcoming limitations of traditional DNA barcodes. Our method, which uses next generation sequencing to generate partial chloroplast genomes, reveals that DNA barcode regions are not necessarily fixed, accelerating the process of species identification.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 1","pages":"115-126"},"PeriodicalIF":4.6,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11873577/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557734","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 third dimension of alpine plant leaf traits is related to cold-tolerance.","authors":"Yuan Wang, Ji Suonan, Kun Liu, Yanni Gao, Sihao Zhu, Qian Liu, Ning Zhao","doi":"10.1016/j.pld.2024.10.001","DOIUrl":"10.1016/j.pld.2024.10.001","url":null,"abstract":"<p><p>Alpine plants possess unique traits to adapt alpine environments. Whether leaf trait relationships of alpine plants can be captured by the two trait dimensions of organ size and resource economics is unknown. We hypothesized that, beyond the trait dimensions of leaf size and resource economics, non-structured carbohydrates (NSC) would reflect a dimension of cold-tolerance in alpine plants. To test this hypothesis, we measured 12 leaf traits critical to leaf construction and growth in 143 species across 7 sites ranging from alpine steppes to alpine meadows along an environmental gradient on the Tibetan Plateau. Furthermore, a cold resistance experiment was conducted at one of these sites to estimate the lethal temperature causing 50% frost damage (LT₅₀) of 11 alpine species. The majority of variations in 12 leaf traits of alpine plants were captured by three trait axes, in which leaf carbon (LCC) and NSC (including leaf starch; LSC and leaf soluble sugars; LSS) were clustered in a new dimension (PC3) beyond leaf size and structure, and resource economics. Although LCC, LSC and LSS all showed negative correlations with mean annual temperature, a significant negative correlation was only found between LSS and LT₅₀. It indicated that PC3 was able to reflect the cold-tolerance of alpine plants to some extent, in which LSS was the most critical trait. The storage and transformation of NSC under stressful conditions could reflect a dimension of long-term metabolic adaptation and cold-tolerance, which is an extension of the resource-utilization strategy beyond construction cost and growth.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 1","pages":"159-165"},"PeriodicalIF":4.6,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11873570/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557788","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":"Diversity and traditional knowledge concerning fodder plants are invaluable assets for enhancing the sustainable management of crop-livestock system of Zhaotong City in the mountainous southwest China.","authors":"Xian Chen, Pyae Phyo Hein, Mengxue Shi, Fen Yang, Jun Yang, Yao Fu, Xuefei Yang","doi":"10.1016/j.pld.2024.09.011","DOIUrl":"10.1016/j.pld.2024.09.011","url":null,"abstract":"<p><p>The global rise in animal protein consumption has significantly amplified the demand for fodder. A comprehensive understanding of the diversity and characteristics of existing fodder resources is essential for balanced nutritional fodder production. This study investigates the diversity and composition of fodder plants and identifies key species for cattle in Zhaotong City, Yunnan, China, while documenting indigenous knowledge on their usage and selection criteria. Ethnobotanical surveys were conducted in 19 villages across seven townships with 140 informants. Data were collected through semi-structured interviews, free listing, and participatory observation, and analyzed using Relative Frequency Citation. A total of 125 taxa (including 106 wild and 19 cultivated) were reported. The most cited family is Poaceae (27 taxa, 21.43%), followed by Asteraceae (17 taxa, 13.49%), Fabaceae (14 taxa, 11.11%), Polygonaceae (9 taxa, 7.14%) and Lamiaceae (4 taxa, 3.17%). The whole plant (66.04%) and herbaceous plants (84.80%) were the most used parts and life forms. The most cited species were <i>Zea mays</i>, <i>Brassica rapa</i>, <i>Solanum tuberosum</i>, <i>Eragrostis nigra</i>, and <i>Artemisia dubia</i>. Usage of diverse fodder resources reflects local wisdom in managing resource availability and achieving balanced nutrition while coping with environmental and climatic risks. Preferences for certain taxonomic groups are due to their quality as premier fodder resources. To promote integrated crop-livestock farming, we suggest further research into highly preferred fodder species, focusing on nutritional assessment, digestibility, meat quality impacts, and potential as antibiotic alternatives. Establishing germplasm and gene banks for fodder resources is also recommended.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 2","pages":"311-322"},"PeriodicalIF":4.6,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11963196/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780968","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":"Effects of mode of reproduction on genetic polymorphism and divergence in wild yams (Dioscoreaceae: <i>Dioscorea</i>).","authors":"Xin Wang, Qing-Hong Feng, Zhi-Hua Zeng, Zhi-Qiang Zhang, Jie Cai, Gao Chen, De-Zhu Li, Hong Wang, Wei Zhou","doi":"10.1016/j.pld.2024.09.009","DOIUrl":"10.1016/j.pld.2024.09.009","url":null,"abstract":"<p><p>Evolutionary transitions from sexual to asexual reproduction should have significant influences on genetic divergence and polymorphism at the genome level. Plant lineages with diverse reproductive systems provide opportunities to investigate this question using comparative approaches and studies of molecular evolution. We investigated evidence for differences among the transcriptomes of 19 <i>Dioscorea</i> species (wild yams) with diverse reproductive systems. These included sexual species, those that propagate primarily by bulbils, and those with mixed sexual and asexual reproductive modes. We examined how transitions between these reproductive systems affected between-species divergence and within-species polymorphism. Primarily asexual species exhibited a reduced efficacy of natural selection and accumulation of deleterious mutations for both divergence and polymorphism. In contrast, species with mixed reproductive strategies involving both seed and clonal reproduction showed no evidence of an increased fixation of harmful mutations at the divergence level, while an accumulation of genetic load present in polymorphism was evident. Our study indicates that the genetic consequences of evolutionary transitions from sexual to predominantly clonal reproduction is likely to depend on both the duration and extent of asexuality occurring in populations.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 1","pages":"136-147"},"PeriodicalIF":4.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11873583/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143557765","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":"Elevational variation in anatomical traits of the first-order roots and their adaptation mechanisms.","authors":"Xue Wang, Xinrui Liu, Shuang Chen, Jiang Zhu, Yanqi Yuan, Rong Zhu, Kaixi Chen, Xue Yang, Xiaochun Wang, Weiyi Mo, Ruili Wang, Shuoxin Zhang","doi":"10.1016/j.pld.2024.09.008","DOIUrl":"10.1016/j.pld.2024.09.008","url":null,"abstract":"<p><p>Root anatomical traits play an important role in understanding the link between root physiological function and ecological process. To determine how plants change root anatomical traits to adapt to distinct environments, we measured four key root anatomical traits-stele diameter (SD), cortex thickness (CT), root diameter (RD), and the stele to root diameter ratio (SDRD)-of first-order roots of 82 species collected from different vegetation zones along a 2000 m altitudinal gradient on the northern slope of Taibai Mountain. Compared with other altitudes, plants located in temperate birch and fir forests had thinner SD, CT, RD, and SDRD. We found that elevational variation in root anatomical traits could largely be explained by phylogenetic taxonomy (clade). In addition, changes in SD were driven by soil bulk density, whereas variations in CT and RD were influenced by soil available nitrogen. When phylogenetic factors were removed from our analysis, allometric relationships between RD and root anatomical traits (SD and CT) were observed across different altitudes. Our study reveals the influence of phylogeny and environment on the elevational variation in root anatomical traits and further supports the allometric relationship between root anatomical traits (SD and CT) and RD. These findings enhance our understanding of the evolutionary and adaptive mechanisms of root anatomical structures, providing a basis for predicting how root anatomical traits respond to global changes.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 2","pages":"291-299"},"PeriodicalIF":4.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11963088/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780981","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":"Distribution, species richness, and relative importance of different plant life forms across drylands in China.","authors":"Shuran Yao, Weigang Hu, Mingfei Ji, Abraham Allan Degen, Qiajun Du, Muhammad Adnan Akram, Yuan Sun, Ying Sun, Yan Deng, Longwei Dong, Haiyang Gong, Qingqing Hou, Shubin Xie, Xiaoting Wang, Jinzhi Ran, Bernhard Schmid, Qinfeng Guo, Karl J Niklas, Jianming Deng","doi":"10.1016/j.pld.2024.09.007","DOIUrl":"10.1016/j.pld.2024.09.007","url":null,"abstract":"<p><p>Studies on plant diversity are usually based on the total number of species in a community. However, few studies have examined species richness (SR) of different plant life forms in a community along large-scale environmental gradients. Particularly, the relative importance (RIV) of different plant life forms in a community and how they vary with environmental variables are still unclear. To fill these gaps, we determined plant diversity of ephemeral plants, annual herbs, perennial herbs, and woody plants from 187 sites across drylands in China. The SR patterns of herbaceous plants, especially perennial herbs, and their RIV in plant communities increased with increasing precipitation and soil nutrient content; however, the RIV of annual herbs was not altered along these gradients. The SR and RIV of ephemeral plants were affected mainly by precipitation seasonality. The SR of woody plants had a unimodal relationship with air temperature and exhibited the highest RIV and SR percentage in plant communities under the harshest environments. An obvious shift emerged in plant community composition, SR and their critical impact factors at 238.5 mm of mean annual precipitation (MAP). In mesic regions (> 238.5 mm), herbs were the dominant species, and the SR displayed a relatively slow decreasing rate with increasing aridity, which was mediated mainly by MAP and soil nutrients. In arid regions (< 238.5 mm), woody plants were the dominant species, and the SR displayed a relatively fast decreasing rate with increasing aridity, which was mediated mainly by climate variables, especially precipitation. Our findings highlight the importance of comparative life form studies in community structure and biodiversity, as their responses to gradients differed substantially on a large scale.</p>","PeriodicalId":20224,"journal":{"name":"Plant Diversity","volume":"47 2","pages":"273-281"},"PeriodicalIF":4.6,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11962942/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780967","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}