Investigating the formation and evolution of plant diversity patterns in the Qiangtang Plateau based on phylofloristics approach
Phylofloristics integrates phylogenetic information into the analysis of flora to elucidate the origin and evolutionary history of flora. The Qiangtang Plateau, located in the hinterland of the Tibetan Plateau, is the ''Roof of the World's Roof,'' serving as a natural labora...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-04-01
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| Series: | Global Ecology and Conservation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989425000800 |
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| author | Xiaoping Li Yun Han Lei Miao Hao Xu Jingya Yu Shuang Han Faqi Zhang |
| author_facet | Xiaoping Li Yun Han Lei Miao Hao Xu Jingya Yu Shuang Han Faqi Zhang |
| author_sort | Xiaoping Li |
| collection | DOAJ |
| description | Phylofloristics integrates phylogenetic information into the analysis of flora to elucidate the origin and evolutionary history of flora. The Qiangtang Plateau, located in the hinterland of the Tibetan Plateau, is the ''Roof of the World's Roof,'' serving as a natural laboratory for studying the origin and evolution of cold and arid flora not only within the Tibetan Plateau but also globally. We analyzed the phylogenetic diversity (PD) of the Qiangtang Plateau flora and the effects of environmental factors on the most phylogenetic beta diversity, and inferred the divergence time of species based on a phylogenetic tree constructed from 228 complete plastid genomes, aiming to explore the pattern of plant diversity and its evolutionary history on the Qiangtang Plateau. We quantified the PD of the Qiangtang Plateau flora utilizing a macro-phylogenetic tree derived from a plant list of 370 species. Our analysis identified two distinct phyloregions, designated CⅠ and CⅡ, corresponding to the southeastern and northwestern sectors of the plateau, respectively, as delineated by their beta diversity. Concurrently, our findings indicate that the primary climatic determinants of phylogenetic beta diversity in these regions are bio15 (precipitation seasonality) and bio17 (precipitation in the driest quarter). Furthermore, using fossil data, we deduced that the emergence of seed plant families in this region dates back to the Cretaceous period (145.00 Ma), with a significant acceleration in evolutionary rates observed since the onset of the Quaternary Ice Age (2.00 Ma). These findings underscore the pivotal role of the uplift of the Qiangtang Plateau and the climatic shifts during the Quaternary Ice Age as primary drivers shaping the region's contemporary distribution patterns of alpine plants. |
| format | Article |
| id | doaj-art-82991343e15e4ec3bd0bcd07e0a7c62e |
| institution | Kabale University |
| issn | 2351-9894 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Global Ecology and Conservation |
| spelling | doaj-art-82991343e15e4ec3bd0bcd07e0a7c62e2025-02-12T05:31:17ZengElsevierGlobal Ecology and Conservation2351-98942025-04-0158e03479Investigating the formation and evolution of plant diversity patterns in the Qiangtang Plateau based on phylofloristics approachXiaoping Li0Yun Han1Lei Miao2Hao Xu3Jingya Yu4Shuang Han5Faqi Zhang6Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, ChinaKey Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, ChinaQinghai Provincial Forestry and Grassland Administration, Xining 810000, ChinaKey Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, ChinaKey Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, ChinaKey Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, ChinaKey Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100039, China; Xining Botanical Garden, Xining 810001, China; Corresponding author at: Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China.Phylofloristics integrates phylogenetic information into the analysis of flora to elucidate the origin and evolutionary history of flora. The Qiangtang Plateau, located in the hinterland of the Tibetan Plateau, is the ''Roof of the World's Roof,'' serving as a natural laboratory for studying the origin and evolution of cold and arid flora not only within the Tibetan Plateau but also globally. We analyzed the phylogenetic diversity (PD) of the Qiangtang Plateau flora and the effects of environmental factors on the most phylogenetic beta diversity, and inferred the divergence time of species based on a phylogenetic tree constructed from 228 complete plastid genomes, aiming to explore the pattern of plant diversity and its evolutionary history on the Qiangtang Plateau. We quantified the PD of the Qiangtang Plateau flora utilizing a macro-phylogenetic tree derived from a plant list of 370 species. Our analysis identified two distinct phyloregions, designated CⅠ and CⅡ, corresponding to the southeastern and northwestern sectors of the plateau, respectively, as delineated by their beta diversity. Concurrently, our findings indicate that the primary climatic determinants of phylogenetic beta diversity in these regions are bio15 (precipitation seasonality) and bio17 (precipitation in the driest quarter). Furthermore, using fossil data, we deduced that the emergence of seed plant families in this region dates back to the Cretaceous period (145.00 Ma), with a significant acceleration in evolutionary rates observed since the onset of the Quaternary Ice Age (2.00 Ma). These findings underscore the pivotal role of the uplift of the Qiangtang Plateau and the climatic shifts during the Quaternary Ice Age as primary drivers shaping the region's contemporary distribution patterns of alpine plants.http://www.sciencedirect.com/science/article/pii/S2351989425000800Qiangtang PlateauSeed plantsPhylofloristicsPlastid genomeDivergence time |
| spellingShingle | Xiaoping Li Yun Han Lei Miao Hao Xu Jingya Yu Shuang Han Faqi Zhang Investigating the formation and evolution of plant diversity patterns in the Qiangtang Plateau based on phylofloristics approach Global Ecology and Conservation Qiangtang Plateau Seed plants Phylofloristics Plastid genome Divergence time |
| title | Investigating the formation and evolution of plant diversity patterns in the Qiangtang Plateau based on phylofloristics approach |
| title_full | Investigating the formation and evolution of plant diversity patterns in the Qiangtang Plateau based on phylofloristics approach |
| title_fullStr | Investigating the formation and evolution of plant diversity patterns in the Qiangtang Plateau based on phylofloristics approach |
| title_full_unstemmed | Investigating the formation and evolution of plant diversity patterns in the Qiangtang Plateau based on phylofloristics approach |
| title_short | Investigating the formation and evolution of plant diversity patterns in the Qiangtang Plateau based on phylofloristics approach |
| title_sort | investigating the formation and evolution of plant diversity patterns in the qiangtang plateau based on phylofloristics approach |
| topic | Qiangtang Plateau Seed plants Phylofloristics Plastid genome Divergence time |
| url | http://www.sciencedirect.com/science/article/pii/S2351989425000800 |
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