湖南农业大学学报（自然科学版）2017，Vol.43Issue(3)：262-265,4.DOI:10.13331/j.cnki.jhau.2017.03.007
神农架自然保护区核桃居群遗传多样性研究
Genetic diversity analysis on genetic diversity ofJuglans regia population in Shennongjia Nature Reserve
摘要
Abstract
To exploit the walnut (Juglans regia) germplasm in Shennongjia Nature Reserve, the genetic diversity and genetic structure of walnut populations were studied based on 12 SSR markers. 108 alleles from 90 walnut trees of three walnut populations were amplified, and the proportion of polymorphism was 100%. The fact that level of total expectation heterozygosity (He) was 0.604, showed a moderate genetic diversity, and suggested a high probability of rare germplasm in the populations. Analysis from molecular variance revealed a significant genetic variation (Fst=0.0822) among populations of walnut, which indicated a moderate differentiation of populations, this might cause by geographic isolation on the three populations, and some locus also suggested a heterozygous deficiency among all the samples. The cluster results showed that the genetic distances among the three populations were consistent with their geographic distance.关键词
核桃/神农架自然保护区/遗传多样性/种质资源Key words
walnut(Juglans regia)/Shennongjia Nature Reserve/genetic diversity/germplasm分类
农业科技引用本文复制引用
付光晟,谭学春,王滑..神农架自然保护区核桃居群遗传多样性研究[J].湖南农业大学学报（自然科学版）,2017,43(3):262-265,4.基金项目
国家自然科学基金项目(31400558) （31400558）
