中国农业科技导报2025，Vol.27Issue(9)：69-78,10.DOI:10.13304/j.nykjdb.2024.0222
甘肃胡麻地方品种遗传多样性和群体结构分析
Analysis of Genetic Diversity and Population Structure of Flax Local Varieties in Gansu
刘杰 1王斌 2侯静静 2吴兵 1赵利1
作者信息
- 1. 甘肃农业大学生命科学技术学院,兰州 730070
- 2. 甘肃省农业科学院作物研究所,兰州 730070
- 折叠
摘要
Abstract
Flax is a major oilseed crop in arid regions of China,and Gansu is one of the main production areas of flax in China.Studying the genetic diversity and population structure of flax local varieties in Gansu province is of great significance for uncovering rich and superior allelic variations and improving sesame breeding efficiency.Using SSR molecular marker,the genetic diversity and population structure of 94 flax local varieties from 13 counties(cities and districts)in Gansu province were analyzed.The results showed that 46 alleles were got by 21 SSR primers with 2～3 alleles per primer;the polymorphism information contents were 0.158～0.522 with an average of 0.343,the observed heterozygosity(Ho)was 0.060～0.957 with an average of 0.448,the expected heterozygosity(He)was 0.126～0.569 with an average of 0.408,and the Shannon diversity index were 0.267～0.860 with an average of 0.613.With a genetic distance threshold of 0.028,the 94 sesame resources were grouped into 4 groups.It showed that the genetic differences between sesame local varieties in Gansu province were small,the genetic distances were close,and the genetic background was narrow.关键词
胡麻/地方品种/遗传多样性/群体结构Key words
flax/local variety/genetic diversity/population structure分类
农业科技引用本文复制引用
刘杰,王斌,侯静静,吴兵,赵利..甘肃胡麻地方品种遗传多样性和群体结构分析[J].中国农业科技导报,2025,27(9):69-78,10.
