期刊论文

Studies on Genetic Diversity of 48 Wild Species of Magnoliaceae in Yunnan

中文

热带亚热带植物学报

1005-3395

2020

28

03

277-284

10.11926/jtsb.4161

2016NK2143:湖南省重点研发计划项目 :长沙市科技局项目

本校为其他机构

为了解云南省木兰科(Magnoliaceae)野生植物资源的遗传多样性,利用ISSR分子标记技术对48种木兰科野生植物资源进行研究。结果表明,10对引物共扩增出151条带,均为多态性条带,多态性条带百分率为100%。总的观测等位基因数(Na)为2.000 0,有效等位基因数(Ne)为1.564 5,Nei’s基因多样性指数(H) 0.337 9,Shannon’s信息指数(I)为0.510 1。总的基因多样性指数(Ht)为0.368 0,属间基因多样性指数(Dst)为0.251 9,占68.4%,基因分化系数(Gst)为0.684 0,基因流(Nm)为0.231 0。UPGMA聚类分析将48种木兰科植物划分为7个类群,各类群并非按照属聚在一起,而是不同属植物相间分布,长喙厚朴(Magnolia rostrata)、素...

The genetic diversity of 48 wild species of Magnoliaceae in Yunnan Province were studied by using ISSR molecular markers. The results showed that a total of 151 polymorphic bands were amplified by 10 pairs of primers with percentage of polymorphic bands for 100%. The total observed number of alleles (Na), effective number of alleles (Ne), Nei’s genetic diversity index (H) and Shannon’s information index (I) of 48 Magnoliaceae species were 2.000 0, 1.564 5, 0.337 9 and 0.510 1, respectively. The total genetic diversity index (Ht) was 0.368 0, ...