干旱区生态环境知识资源中心(Arid): Divergence and hybridization in the desert plant Reaumuria soongarica

Arid

	Divergence and hybridization in the desert plant Reaumuria soongarica
	Shi Yong; Yan Xia; Yin Hengxia; Qian Chaoju; Fan Xingke; Yin Xiaoyue; Chang Yuxiao; Zhang Chengjun; Ma Xiaofei
来源期刊	Journal of Systematics and Evolution
ISSN	1674-4918
出版年	2020
卷号	58 期号:2 页码:159-173
英文摘要	Speciation is widely accepted to be a complex and continuous process.Due to complicated evolutionary histories,desert plants are ideal model systems to understand the process of speciation along a continuum.Here,we elucidate the evolutionary history of Reaumuria soongarica (Pall.) Maxim.,a typical desert plant that is wildly distributed across arid central Asia.Based on variation patterns present at nine nuclear loci in 325 individuals (representing 41 populations),we examined the demographic history,patterns of gene flow,and degree of ecological differentiation among wild R.soongarica.Our findings indicate that genetic divergence between the ancient western and eastern lineages of R.soongarica occurred approximately 0.714 Mya,probably due to the Kunlun-Yellow River tectonic movement and the Naynayxungla glaciation.Later,multiple hybridization events between the western and eastern lineages that took place between 0.287 and 0.543 Mya,and which might have been triggered by the asynchronous historical expansion of the western and eastern deserts,contributed to the formation of a hybrid northern lineage.Moreover,despite continuing gene flow into this population from its progenitors,the northern lineage maintained its genetic boundary by ecological differentiation.The northern lineage could be an incipient species,and provides an opportunity to study the continuous process of speciation.This study suggests that two opposite evolutionary forces,divergence and hybridization,coexisting in the continuous speciation of the desert plant R.soongarica in a short time.Moreover,we provide evidence that this continuous speciation process is affected by geological events,climatic change,and ecological differentiation.
英文关键词	arid central Asia ecological speciation glaciation hybrid speciation Quaternary speciation continuum
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6668140
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336257
作者单位	Shi Yong, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;;Germplasm Bank of Wild Species in Southwest China,Kunming Institute of Botany,Chinese Academy of Sciences, Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions,Chinese Academy of Sciences;;, Lanzhou;;Kunming, ;; 730000;;650201.; Yan Xia, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;;Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences, Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions,Chinese Academy of Sciences;;Key Laboratory of Eco-hydrology of Inland River Basin,Chinese Academy of Sciences, Lanzhou;;Lanzhou, ;; 730000;;730000.; Yin Hengxia, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;;Qinghai University, Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions,Chinese Academy of Sciences;;State Key Laboratory of Plateau Ecology and Agriculture, Lanzhou;;...
推荐引用方式 GB/T 7714	Shi Yong,Yan Xia,Yin Hengxia,et al. Divergence and hybridization in the desert plant Reaumuria soongarica[J],2020,58(2):159-173.
APA	Shi Yong.,Yan Xia.,Yin Hengxia.,Qian Chaoju.,Fan Xingke.,...&Ma Xiaofei.(2020).Divergence and hybridization in the desert plant Reaumuria soongarica.Journal of Systematics and Evolution,58(2),159-173.
MLA	Shi Yong,et al."Divergence and hybridization in the desert plant Reaumuria soongarica".Journal of Systematics and Evolution 58.2(2020):159-173.