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

Arid

DOI	10.1111/jse.12490
	Divergence and hybridization in the desert plant Reaumuria soongarica
	Shi, Yong 1,2; Yan, Xia 1,3; Yin, Heng-Xia 1,4; Qian, Chao-Ju 1; Fan, Xing-Ke 1,5; Yin, Xiao-Yue 1,5; Chang, Yu-Xiao 6; Zhang, Cheng-Jun 2; Ma, Xiao-Fei 1
通讯作者	Zhang, Cheng-Jun ; Ma, Xiao-Fei
来源期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN	1674-4918
EISSN	1759-6831
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
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000517676600005
WOS关键词	PINE PINUS-DENSATA ; EVOLUTIONARY HISTORY ; ECOLOGICAL SPECIATION ; PLEISTOCENE CLIMATE ; TIBETAN PLATEAU ; POPULATION ; SELECTION ; SOFTWARE ; NUMBER ; SHRUB
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315088
作者单位	1.Chinese Acad Sci, Key Lab Stress Physiol & Ecol Cold & Arid Reg, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 2.Chinese Acad Sci, Germplasm Bank Wild Species Southwest China, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China; 3.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 4.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Qinghai, Peoples R China; 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 6.Chinese Acad Agr Sci, Agr Genomes Inst Shenzhen, Shenzhen, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Shi, Yong,Yan, Xia,Yin, Heng-Xia,et al. Divergence and hybridization in the desert plant Reaumuria soongarica[J]. 中国科学院西北生态环境资源研究院,2020,58(2):159-173.
APA	Shi, Yong.,Yan, Xia.,Yin, Heng-Xia.,Qian, Chao-Ju.,Fan, Xing-Ke.,...&Ma, Xiao-Fei.(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.