Rapid diversification of alpine bamboos associated with the uplift of the Hengduan Mountains

doi:10.1111/jbi.13723

	Rapid diversification of alpine bamboos associated with the uplift of the Hengduan Mountains
	Ye, Xia-Ying 1,2; Ma, Peng-Fei 1; Yang, Guo-Qian1,2 ; Guo, Cen 1,2; Zhang, Yu-Xiao 1,3; Chen, Yun-Mei 1; Guo, Zhen-Hua1 ; Li, De-Zhu1,2
通讯作者	Li, De-Zhu(dzl@mail.kib.ac.cn)
	2019-09-30
发表期刊	JOURNAL OF BIOGEOGRAPHY
ISSN	0305-0270
页码	12
摘要	Aim The Hengduan Mountains (HDM) of southwest China is a biodiversity hotspot and harbours one of the world's richest temperate floras. However, the origin and evolution of its biota remain largely unresolved. Here we explore the impact of mountain uplift on the diversification process of biodiversity in this hotspot using alpine bamboos. Location The HDM region, southwest China. Taxon Alpine bamboos. Methods We used ddRAD-seq data from the most complete sampling of alpine bamboos undertaken to date (79% of the species diversity), to investigate their evolutionary history. The ancestral area of these bamboos was reconstructed using a time-calibrated phylogeny in BioGeoBEARS and diversification rates were inferred using BAMM analyses. In addition, the impact of mountain uplift on the divergence of alpine bamboos was evaluated using trait-dependent models of diversification. Results The alpine bamboos were strongly supported as monophyletic, and the relationships within them were robustly resolved. Fargesia was found to be polyphyletic and Yushania was resolved as monophyletic. Alpine bamboos originated outside the HDM region during the late Miocene, and spread to this region in the Pliocene, undergoing a significant acceleration in net diversification, which is temporally congruent with the orogeny. The speciation rate increased with altitude and a high diversification rate, estimated to be 0.75 species per million years, was detected for alpine bamboos distributed in high elevations. Main Conclusions Our study demonstrates that heterogeneous mountain habitats and geographical isolation of alpine bamboos, which have limited dispersal ability, are important drivers for their rapid diversification. This study also highlights the power of complementary analyses in revealing the link between species diversification and past geological changes.
关键词	alpine bamboos ddRAD-seq diversification molecular dating mountain uplift phylogeny
DOI	10.1111/jbi.13723
收录类别	SCI ; SCI
语种	英语
WOS记录号	WOS:000490525300001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/69936
专题	中国西南野生生物种质资源库
通讯作者	Li, De-Zhu
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Coll Life Sci, Kunming, Yunnan, Peoples R China 3.Southwest Forestry Univ, Yunnan Acad Biodivers, Kunming, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Ye, Xia-Ying,Ma, Peng-Fei,Yang, Guo-Qian,et al. Rapid diversification of alpine bamboos associated with the uplift of the Hengduan Mountains[J]. JOURNAL OF BIOGEOGRAPHY,2019:12.
APA	Ye, Xia-Ying.,Ma, Peng-Fei.,Yang, Guo-Qian.,Guo, Cen.,Zhang, Yu-Xiao.,...&Li, De-Zhu.(2019).Rapid diversification of alpine bamboos associated with the uplift of the Hengduan Mountains.JOURNAL OF BIOGEOGRAPHY,12.
MLA	Ye, Xia-Ying,et al."Rapid diversification of alpine bamboos associated with the uplift of the Hengduan Mountains".JOURNAL OF BIOGEOGRAPHY (2019):12.

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