干旱区生态环境知识资源中心(Arid): Population genetic structure and evolutionary history of Psammochloa villosa (Trin.) Bor (Poaceae) revealed by AFLP marker

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DOI	10.1002/ece3.7831
	Population genetic structure and evolutionary history of Psammochloa villosa (Trin.) Bor (Poaceae) revealed by AFLP marker
	Lv, Ting; Harris, A. J.; Liu, Yuping; Liu, Tao; Liang, Ruifang; Ma, Zilan; Su, Xu
通讯作者	Liu, YP ; Su, X (corresponding author), Qinghai Normal Univ, Sch Life Sci, Key Lab Med Anim & Plant Resources Qinghai Tibet, Xining 810008, Peoples R China.
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2021
卷号	11 期号:15 页码:10258-10276
英文摘要	Psammochloa villosa is an ecologically important desert grass that occurs in the Inner Mongolian Plateau where it is frequently the dominant species and is involved in sand stabilization and wind breaking. We sought to generate a preliminary demographic framework for P. villosa to support the future studies of this species, its conservation, and sustainable utilization. To accomplish this, we characterized the genetic diversity and structure of 210 individuals from 43 natural populations of P. villosa using amplified fragment length polymorphism (AFLP) markers. We obtained 1,728 well-defined amplified bands from eight pairs of primers, of which 1,654 bands (95.7%) were polymorphic. Results obtained from the AFLPs suggested effective alleles among populations of 1.32, a Nei's standard genetic distance value of 0.206, a Shannon index of 0.332, a coefficient of gene differentiation (G(ST)) of 0.469, and a gene flow parameter (Nm) of 0.576. All these values indicate that there is abundant genetic diversity in P. villosa, but limited gene flow. An analysis of molecular variance (AMOVA) showed that genetic variation mainly exists within populations (64.2%), and we found that the most genetically similar populations were often not geographically adjacent. Thus, this suggests that the mechanisms of gene flow are surprisingly complex in this species and may occur over long distances. In addition, we predicted the distribution dynamics of P. villosa based on the spatial distribution modeling and found that its range has contracted continuously since the last interglacial period. We speculate that dry, cold climates have been critical in determining the geographic distribution of P. villosa during the Quaternary period. Our study provides new insights into the population genetics and evolutionary history of P. villosa in the Inner Mongolian Plateau and provides a resource that can be used to design in situ conservation actions and prioritize sustainable utilization.
英文关键词	desert grasslands ecological niche modeling Inner Mongolian Plateau population genetics SAMOVA
类型	Article
语种	英语
开放获取类型	Green Published, gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000672527400001
WOS关键词	CLIMATIC OSCILLATIONS ; CLONAL DIVERSITY ; TIBETAN PLATEAU ; NORTHWEST CHINA ; PHYLOGEOGRAPHY ; SOFTWARE ; DIFFERENTIATION ; EXTENSIONS ; HOMOPLASY ; VARIANCE
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/2XILL650/363025
作者单位	[Lv, Ting; Liu, Tao; Su, Xu] Qinghai Normal Univ, Sch Geosci, Xining, Peoples R China; [Lv, Ting; Liu, Yuping; Su, Xu] Acad Plateau Sci & Sustainabil, Xining, Peoples R China; [Harris, A. J.] Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable U, South China Bot Garden, Guangzhou, Peoples R China; [Liu, Yuping; Liang, Ruifang; Ma, Zilan; Su, Xu] Qinghai Normal Univ, Sch Life Sci, Key Lab Med Anim & Plant Resources Qinghai Tibet, Xining 810008, Peoples R China; [Su, Xu] Qinghai Normal Univ, Key Lab Educ, Minist Earth Surface Proc & Ecol Conservat Qingha, Xining, Peoples R China
推荐引用方式 GB/T 7714	Lv, Ting,Harris, A. J.,Liu, Yuping,et al. Population genetic structure and evolutionary history of Psammochloa villosa (Trin.) Bor (Poaceae) revealed by AFLP marker[J],2021,11(15):10258-10276.
APA	Lv, Ting.,Harris, A. J..,Liu, Yuping.,Liu, Tao.,Liang, Ruifang.,...&Su, Xu.(2021).Population genetic structure and evolutionary history of Psammochloa villosa (Trin.) Bor (Poaceae) revealed by AFLP marker.ECOLOGY AND EVOLUTION,11(15),10258-10276.
MLA	Lv, Ting,et al."Population genetic structure and evolutionary history of Psammochloa villosa (Trin.) Bor (Poaceae) revealed by AFLP marker".ECOLOGY AND EVOLUTION 11.15(2021):10258-10276.