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Population differentiation of endangered opisthopappus shih in China

Population differentiation of endangered Opisthopappus Shih ...

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中国植物学会第十六次全国会员代表大会暨85周年学术年会

作者： Hang Ye Jiahui Wu Huimin Hou Zhi Wang Yiling Wang College of Life Science Shanxi Normal University

opisthopappus shih,an endemic genus of China of perennial herb,has high ornamental value and medicinal value,is an important germplasm resource of Asteraceae owing to its drought resistance,shade resistance and cold *** genus contains two species: Opisthopapus taihangensis(Ling) shih and opisthopappus longilobus shih.,only spread in Taihang Mountain,has been nominated as the 2 class protection plants in *** this study,we have developed eight SNP and ten InDel maker based transcriptome data to explore the genetic differentiation,phylogeographic structure and historical distribution pattern for this genus and this two *** genetic diversity occurred in *** genetic parameters of *** were higher than that of *** differentiation among populations was greater than that within populations,indicating genetic variation mainly existed among ***-five haplotypes obtained from SNPs fragment.47 haplotypes were in ***,other 28 haplotypes in ***,and there was no shared haplotype between this two *** H50 was widely distributed in ***,maybe an ancestral haplotype;while haplotypes of *** were more abundant and complex and no ancestral haplotype *** time of opisthopappus haplotypes appeared before 13.2 *** two species,haplotypes differentiation time was about 8-9 Ma *** expansion had no experienced during the evolution process of opisthopappus shih,however,an expansion was present in *** and ***(P> 0.05).No matter InDel data or SNPs sequences,all twenty-four populations could be divided into 2 groups,which represented *** and *** *** component analysis showed that Annual Mean Temperature,Mean Temperature of Warmest Quarter,Annual Precipitation,Precipitation of Wettest Quarter and Altitude played a major role in the distribution of *** polymorp

关键词： opisthopappus shih SNP InDel Population differentiation Phylogeography

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