干旱区生态环境知识资源中心(Arid): A population genetics perspective on the evolutionary histories of three clonal, endemic, and dominant grass species of the Qinghai-Tibet Plateau: Orinus (Poaceae)

Arid

DOI	10.1002/ece3.5186
	A population genetics perspective on the evolutionary histories of three clonal, endemic, and dominant grass species of the Qinghai-Tibet Plateau: Orinus (Poaceae)
	Liu, Yuping 1,2,3; Harris, A. J.4; Gao, Qingbo 5; Su, Xu 1,2,3; Ren, Zhumei 6
通讯作者	Su, Xu ; Ren, Zhumei
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2019
卷号	9 期号:10 页码:6014-6037
英文摘要	We performed analyses of amplified fragment length polymorphism (AFLP) in order to characterize the evolutionary history of Orinus according to its population genetic structure, as well as to investigate putative hybrid origins of O. intermedius and to provide additional insights into relationships among species. The genus Orinus comprises three clonal grasses that are dominant species within xeric alpine grasslands of the Qinghai-Tibet Plateau (QTP). Here, we used eight selectively obtained primer pairs of EcoRI/MseI to perform amplifications in 231 individuals of Orinus representing 48 populations and all three species. We compared our resulting data to genetic models of hybridization using a Bayesian algorithm within NewHybrids software. We determined that genetic variation in Orinus was 56.65% within populations while the among-species component was 30.04% using standard population genetics statistics. Nevertheless, we detected that species of Orinus were clustered into three highly distinct genetic groups corresponding to classic species identities. Our results suggest that there is some introgression among species. Thus, we tested explicit models of hybridization using a Bayesian approach within NewHybrids software. However, O. intermedius likely derives from a common ancestor with O. kokonoricus and is probably not the result of hybrid speciation between O. kokonoricus and O. thoroldii. We suspect that recent isolation of species of Orinus in allopatry via vicariance may explain the patterns in diversity that we observed, and this is corroborated by a Mantel test that showed significant positive correlation between geographic and genetic distance (r = 0.05, p < 0.05). Recent isolation may explain why Orinus differs from many other clonal species by exhibiting the highest diversity within populations rather than among them.
英文关键词	alpine grassland amplified fragment length polymorphism genetic variation hybridization population biology
类型	Article
语种	英语
国家	Peoples R China ; USA
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000470923500038
WOS关键词	LONG-DISTANCE DISPERSAL ; MOLECULAR PHYLOGENY ; DIVERSITY ; PLANTS ; BIODIVERSITY ; SOFTWARE ; PATTERNS ; DESERTIFICATION ; CLASSIFICATION ; PHYLOGEOGRAPHY
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215265
作者单位	1.Qinghai Normal Univ, Sch Life Sci, Key Lab Med Plant & Anim Resources Qinghai Tibet, 38 Wusixi Rd, Xining 810008, Qinghai, Peoples R China; 2.Qinghai Normal Univ, Sch Life Sci, Key Lab Phys Geog & Environm Proc Qinghai Prov, Xining, Qinghai, Peoples R China; 3.Qinghai Normal Univ, Sch Life Sci, Key Lab Educ Minist Environm & Resources Qinghai, Xining, Qinghai, Peoples R China; 4.Oberlin Coll & Conservatory, Dept Biol, Oberlin, OH USA; 5.Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Prov Key Lab Crop Mol Breeding, Xining, Qinghai, Peoples R China; 6.Shanxi Univ, Sch Life Sci, 92 Wucheng Rd, Taiyuan 030006, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yuping,Harris, A. J.,Gao, Qingbo,et al. A population genetics perspective on the evolutionary histories of three clonal, endemic, and dominant grass species of the Qinghai-Tibet Plateau: Orinus (Poaceae)[J],2019,9(10):6014-6037.
APA	Liu, Yuping,Harris, A. J.,Gao, Qingbo,Su, Xu,&Ren, Zhumei.(2019).A population genetics perspective on the evolutionary histories of three clonal, endemic, and dominant grass species of the Qinghai-Tibet Plateau: Orinus (Poaceae).ECOLOGY AND EVOLUTION,9(10),6014-6037.
MLA	Liu, Yuping,et al."A population genetics perspective on the evolutionary histories of three clonal, endemic, and dominant grass species of the Qinghai-Tibet Plateau: Orinus (Poaceae)".ECOLOGY AND EVOLUTION 9.10(2019):6014-6037.