Speciation along the elevation gradient: Divergence of Roscoea species within the south slope of the Himalayas

doi:10.1016/j.ympev.2021.107292

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	Speciation along the elevation gradient: Divergence of Roscoea species within the south slope of the Himalayas
	Zhao,Jian-Li ; Paudel,Babu Ram ; Yu,Xiang-Qin ; Zhang,Jie ; Li,Qing-Jun
	2021
发表期刊	MOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN	1055-7903
卷号	164 页码:107292
摘要	The Himalayas with dramatic elevation gradient is one of the global biodiversity hotspots. Although origin of biodiversity of the Himalayas is of great concern, the speciation process within the Himalayas is poorly known. Roscoea within the Himalayas serve as a good model system to test the speciation process along an elevation gradient. 32,375 unlinked SNPs were used to reconstruct phylogenetic relationships and introgression analyses in D-statistics and Fastsimicoal2. Species distribution modeling (SDM) was used to simulate habitat shift of Roscoea species during climate changes. Phylogeny suggested that the speciation order, except R. capitata, was from highland to lowland. D-statistics analyses suggested significant bidirectional ancient introgression between elevation-neighboring clades but no introgression between R. capitata and othern clades and no introgression among extant species. Fastsimicoal2 suggested interspecific introgressions were asymmetric. SDM predicted that habitats of Roscoea shifted to low elevation during cooling age. These results suggested that the sudden uplift of the Himalayas likely promoted speciation by vicariance, and climate cooling drove species divergence towards lower elevation. This study provides explanations for the origin of biodiversity within the Himalayas, and an insight to understand speciation along elevation in the mountainous regions.
关键词	Climate changes Elevation gradient Mountain biodiversity Speciation The Himalayas ASIAN MONSOONS PLANT BIODIVERSITY EVOLUTION UPLIFT INTROGRESSION POPULATIONS PHYLOGENY MOUNTAINS FLY
DOI	10.1016/j.ympev.2021.107292
WOS记录号	WOS:000702851200001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73524
专题	中国科学院昆明植物研究所
作者单位	1.Yunnan Univ, Yunnan Key Lab Plant Reprod Adaptat & Evolutionar, Kunming 650500, Yunnan, Peoples R China 2.Yunnan Univ, Lab Ecol & Evolutionary Biol, State Key Lab Conservat & Utilizat Bioresources Y, Kunming 650500, Yunnan, Peoples R China 3.Tribhuvan Univ, Dept Bot, Prithvi Narayan Campus, Kirtipur, Nepal 4.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Zhao,Jian-Li,Paudel,Babu Ram,Yu,Xiang-Qin,et al. Speciation along the elevation gradient: Divergence of Roscoea species within the south slope of the Himalayas[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2021,164:107292.
APA	Zhao,Jian-Li,Paudel,Babu Ram,Yu,Xiang-Qin,Zhang,Jie,&Li,Qing-Jun.(2021).Speciation along the elevation gradient: Divergence of Roscoea species within the south slope of the Himalayas.MOLECULAR PHYLOGENETICS AND EVOLUTION,164,107292.
MLA	Zhao,Jian-Li,et al."Speciation along the elevation gradient: Divergence of Roscoea species within the south slope of the Himalayas".MOLECULAR PHYLOGENETICS AND EVOLUTION 164(2021):107292.

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