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| Molecular phylogeny, biogeography and character evolution of the montane genus Incarvillea Juss. (Bignoniaceae) | |
Rana,Santosh Kumar; Luo,Dong ; Rana,Hum Kala; Chen,Shaotian; Sun,Hang
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| 2021 | |
| 发表期刊 | PLANT DIVERSITY
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| ISSN | 2096-2703 |
| 卷号 | 43期号:1页码:1-14 |
| 摘要 | The complex orogeny of the Himalaya and the Qinghai-Tibet Plateau (QTP) fosters habitat fragmentation that drives morphological differentiation of mountain plant species. Consequently, determining phylogenetic relationships between plant subgenera using morphological characters is unreliable. Therefore, we used both molecular phylogeny and historical biogeographic analysis to infer the ancestral states of several vegetative and reproductive characters of the montane genus Incarvillea. We determined the taxonomic position of the genus Incarvillea within its family and inferred the biogeographical origin of taxa through Bayesian inference (BI), maximum likelihood (ML) and maximum parsimony (MP) analyses using three molecular data sets (trnL-trnF sequences, nr ITS sequences, and a data set of combined sequences) derived from 81% of the total species of the genus Incarvillea. Within the genus-level phylogenetic framework, we examined the character evolution of 10 key morphological characters, and inferred the ancestral area and biogeographical history of the genus. Our analyses revealed that the genus Incarvillea is monophyletic and originated in Central Asia during mid-Oligocene ca. 29.42 Ma. The earliest diverging lineages were subsequently split into the Western Himalaya and Sino-Himalaya during the early Miocene ca. 21.12 Ma. These lineages resulted in five re-circumscribed subgenera (Amphicome, Olgaea, Niedzwedzkia, Incarvillea, and Pteroscleris). Moreover, character mapping revealed the ancestral character states of the genus Incarvillea (e.g., suffruticose habit, cylindrical capsule shape, subligneous capsule texture, absence of capsule wing, and loculicidal capsule dehiscence) that are retained at the earliest diverging ancestral nodes across the genus. Our phylogenetic tree of the genus Incarvillea differs from previously proposed phylogenies, thereby recommending the placement of the subgenus Niedzwedzkia close to the subgenus Incarvillea and maintaining two main divergent lineages. Copyright (C) 2020 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. |
| 关键词 | Biodiversity hotspots Biogeography Incarvillea Molecular phylogeny Phytools Stochastic character mapping HENGDUAN MOUNTAINS PLANT DIVERSITY EASTERN ASIA MODEL MIOCENE CONSERVATION DISPERSAL INFERENCE PLATEAU LINEAGE |
| DOI | 10.1016/j.pld.2020.09.002 |
| WOS记录号 | WOS:000630089100001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/73301 |
| 专题 | 中国科学院昆明植物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yunnan Univ Chinese Med, Coll Pharmaceut Sci, Kunming 650500, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rana,Santosh Kumar,Luo,Dong,Rana,Hum Kala,et al. Molecular phylogeny, biogeography and character evolution of the montane genus Incarvillea Juss. (Bignoniaceae)[J]. PLANT DIVERSITY,2021,43(1):1-14. |
| APA | Rana,Santosh Kumar,Luo,Dong,Rana,Hum Kala,Chen,Shaotian,&Sun,Hang.(2021).Molecular phylogeny, biogeography and character evolution of the montane genus Incarvillea Juss. (Bignoniaceae).PLANT DIVERSITY,43(1),1-14. |
| MLA | Rana,Santosh Kumar,et al."Molecular phylogeny, biogeography and character evolution of the montane genus Incarvillea Juss. (Bignoniaceae)".PLANT DIVERSITY 43.1(2021):1-14. |
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| 102. Molecular phylo（5941KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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