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Population genetic structure and demographic history of Medicago ruthenica (Fabaceae) on the Qinghai-Tibetan Plateau based on nuclear ITS and chloroplast markers
Wu, Xiaopei1,2; Liu, Demei1; Gulzar, Khan1; Shen, Yingfang1,2; Wang, Haiqing1
2016-12-01
Source PublicationBIOCHEMICAL SYSTEMATICS AND ECOLOGY
Volume69Pages:204-212
SubtypeArticle
AbstractMedicago ruthenica (L.) Ledebour, a species well adapted to dry, stony and desert habitats, has more tolerance to drought, cold and saline conditions than other alfalfas. Characterization of the genetic diversity and population genetic structure of M. ruthenica is important for its domestication as a legume forage species and for the development of other cultivated alfalfas with abiotic stress tolerance. However, studies of the genetic diversity and pattern of genetic structure of M. ruthenica distributed on the Qinghai-Tibetan Plateau (QTP) have been limited. In this study, nuclear internal transcribed spacer (ITS) and chloroplast (psbA-trnH) DNA regions were used to evaluate the genetic diversity, structure and population dynamics of 12 wild M. ruthenica populations distributed on the QTP and Inner Mongolia. Although the chloroplast psbA-trnH region was more variable than nuclear ITS, both markers indicated high interpopulation genetic differentiation, with all populations clustered into two groups based on neighbor joining clustering. Mismatch distribution and neutrality tests revealed local or small-scale demographic expansion. As inferred by morphology and genetic structure, M. ruthenica can be divided into two ecotypes, a result suggested previously. Our findings imply that the genetic divergence of M. ruthenica may be due to climatic oscillations or earlier uplifts of the QTP. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordMedicago Ruthenica Qinghai-tibetan Plateau Genetic Diversity Genetic Differentiation Range Expansion
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.bse.2016.10.005
WOS KeywordDNA POLYMORPHISM ; INNER-MONGOLIA ; PHYLOGEOGRAPHY ; MITOCHONDRIAL ; DIFFERENTIATION ; LEGUMINOSAE ; EVOLUTION ; SOFTWARE ; ROSACEAE ; SYSTEM
Indexed BySCI
Language英语
Funding OrganizationFoundation of Application of Basic Research Project of Qinghai Province(2014-ZJ-764) ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences(KFJ-SW-STS-177) ; Joint Scholarship Project of the Western Light Foundation of the Chinese Academy of Sciences
WOS Research AreaBiochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS SubjectBiochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS IDWOS:000390497300027
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/6646
Collection中国科学院西北高原生物研究所
Affiliation1.Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, Northwest Inst Plateau Biol, Xining 810001, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Wu, Xiaopei,Liu, Demei,Gulzar, Khan,et al. Population genetic structure and demographic history of Medicago ruthenica (Fabaceae) on the Qinghai-Tibetan Plateau based on nuclear ITS and chloroplast markers[J]. BIOCHEMICAL SYSTEMATICS AND ECOLOGY,2016,69:204-212.
APA Wu, Xiaopei,Liu, Demei,Gulzar, Khan,Shen, Yingfang,&Wang, Haiqing.(2016).Population genetic structure and demographic history of Medicago ruthenica (Fabaceae) on the Qinghai-Tibetan Plateau based on nuclear ITS and chloroplast markers.BIOCHEMICAL SYSTEMATICS AND ECOLOGY,69,204-212.
MLA Wu, Xiaopei,et al."Population genetic structure and demographic history of Medicago ruthenica (Fabaceae) on the Qinghai-Tibetan Plateau based on nuclear ITS and chloroplast markers".BIOCHEMICAL SYSTEMATICS AND ECOLOGY 69(2016):204-212.
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