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Genetic Diversity of Populus laurifolia and Populus nigra Along Erqis River / 新疆额尔齐斯河流域苦杨与欧洲黑杨遗传多样性分析
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Genetic Diversity of Populus laurifolia and Populus nigra Along Erqis River / 新疆额尔齐斯河流域苦杨与欧洲黑杨遗传多样性分析
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Genetic Diversity of Populus laurifolia and Populus nigra Along Erqis River / 新疆额尔齐斯河流域苦杨与欧洲黑杨遗传多样性分析
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Journal Article
Genetic Diversity of Populus laurifolia and Populus nigra Along Erqis River / 新疆额尔齐斯河流域苦杨与欧洲黑杨遗传多样性分析
2014
Overview
The genetic diversity and population genetic differentiation of Populus laurifolia and P.nigra distributed along Erqis River were studied by using nuclear microsatellite markers (SSR). The results showed that the P. laurifolia and P. nigra populations had an abundant genetic diversity, especially P. laurifolia. Higher gene flow (Nm=10.0585) was found in P.nigra than in P.laurifolia, which prevented the genetic differentiation among populations. It was found that 97.57% genetic variation resulted from intra-populations. In addition, there existed a higher heterozygosity in P. laurifolia and P. nigra populations, and many genetic coefficients of populations were smaller than those of species. The inbreeding coefficients among populations were negative, indicating that all SSR loci investigated were deviated from Hardy-Weinberg equilibrium at the level of individuals and populations, which suggested that excess of heterozygotes was present in the population. 应用SSR标记技术，对新疆额尔齐斯河流域河谷分布的苦杨（Populus laurifoli）和欧洲黑杨（Po
Publisher
Chinese Academy of Forestry
Subject
