热带亚热带植物学报2019，Vol.27Issue(1)：29-35,7.DOI:10.11926/jtsb.3908
硬核资源遗传多样性的AFLP分析(英文)
Genetic Diversity of Scleropyrum wallichianum Based on AFLP Markers
摘要
Abstract
In order to understand the genetic diversity of Scleropyrum wallichianum in Yunnan, the genetic variations of eighty-six germplasms from seven populations were analyzed by using AFLP markers. Eight pairs of AFLP primers with high and stable polymorphism were selected, amplified 1 728 DNA bands, of which 1 388 bands were polymorphic, accounting for 80.14％. The genetic diversity indexes at the species level were Na= 1.416, Ne=1.179, H=0.137, I=0.225, and at the population level were H=0.111, I=0.175. At similarity coefficient of 0.52, all germplasms could be divided into three groups. The population YW had abundant genetic diversity, and most of genetic variation existed within populations, while genetic variation among populations was 11.5％ under confidence interval of 0.05. There was no significant correlation between genetic distance and geographical distance among populations (r=0.0323, P=0.5820). Therefore, in situ and ex situ protections would be proposed for increasing genetic diversity of S. wallichianum germplasms.关键词
硬核/AFLP/遗传结构/遗传多样性/引种/保护策略Key words
Scleropyrum wallichianum/AFLP/Genetic structure/Genetic diversity/Introduction/Conservation strategy引用本文复制引用
毛常丽,吴裕,张凤良,何美莹..硬核资源遗传多样性的AFLP分析(英文)[J].热带亚热带植物学报,2019,27(1):29-35,7.基金项目
This work was supported by the Projects for Science and Technology Innovation System Construction in Yunnan Province(Grant No.RF2015-4-1). （Grant No.RF2015-4-1）
