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Gene Flow Results in High Genetic Similarity between Sibiraea (Rosaceae) Species in the Qinghai-Tibetan Plateau
Fu, Peng-Cheng1,2; Gao, Qing-Bo1; Zhang, Fa-Qi1; Xing, Rui1; Wang, Jiu-Li1,3; Liu, Hai-Rui1,3; Chen, Shi-Long1
2016-10-25
Source PublicationFRONTIERS IN PLANT SCIENCE
Volume7
SubtypeArticle
AbstractStudying closely related species and divergent populations provides insight into the process of speciation. Previous studies showed that the Sibiraea complex's evolutionary history on the Qinghai-Tibetan Plateau (QTP) was confusing and could not be distinguishable on the molecular level. In this study, the genetic structure and gene flow of Sibiraea laevigata and Sibiraea angustata on the QTP was examined across 45 populations using 8 microsatellite loci. Microsatellites revealed high genetic diversity in Sibiraea populations. Most of the variance was detected within populations (87.45%) rather than between species (4.39%). We found no significant correlations between genetic and geographical distances among populations. Bayesian cluster analysis grouped all individuals in the sympatric area of Sibiraea into one cluster and other individuals of S. angustata into another. Divergence history analysis based on the approximate Bayesian computation method indicated that the populations of S. angustata at the sympatric area derived from the admixture of the 2 species. The assignment test assigned all individuals to populations of their own species rather than its congeneric species. Consistently, intraspecies were detected rather than interspecies first generation migrants. The bidirectional gene flow in long-term patterns between the 2 species was asymmetric, with more from S. angustata to S. laevigata. In conclusion, the Sibiraea complex was distinguishable on the molecular level using microsatellite loci. We found that the high genetic similarity of the complex resulted from huge bidirectional gene flow, especially on the sympatric area where population admixtures occurred. This study sheds light on speciation with gene flow in the QTP.
KeywordGene Flow Genetic Divergence Microsatellite Qinghai-tibetan Plateau Sibiraea
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.3389/fpls.2016.01596
WOS KeywordAPPROXIMATE BAYESIAN COMPUTATION ; POPULATION-STRUCTURE ; ENVIRONMENTAL-CHANGE ; MICROSATELLITE DATA ; QUATERNARY ; SPECIATION ; SOFTWARE ; PLANTS ; PHYLOGEOGRAPHY ; HISTORY
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(31400322 ; 31270270 ; 31600296 ; 31110103911)
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000386296400003
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/6412
Collection中国科学院西北高原生物研究所
Affiliation1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Peoples R China
2.Luoyang Normal Univ, Coll Life Sci, Luoyang, Peoples R China
3.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Fu, Peng-Cheng,Gao, Qing-Bo,Zhang, Fa-Qi,et al. Gene Flow Results in High Genetic Similarity between Sibiraea (Rosaceae) Species in the Qinghai-Tibetan Plateau[J]. FRONTIERS IN PLANT SCIENCE,2016,7.
APA Fu, Peng-Cheng.,Gao, Qing-Bo.,Zhang, Fa-Qi.,Xing, Rui.,Wang, Jiu-Li.,...&Chen, Shi-Long.(2016).Gene Flow Results in High Genetic Similarity between Sibiraea (Rosaceae) Species in the Qinghai-Tibetan Plateau.FRONTIERS IN PLANT SCIENCE,7.
MLA Fu, Peng-Cheng,et al."Gene Flow Results in High Genetic Similarity between Sibiraea (Rosaceae) Species in the Qinghai-Tibetan Plateau".FRONTIERS IN PLANT SCIENCE 7(2016).
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