中国水稻科学Issue(1)：28-34,7.
云南哈尼梯田当前栽培水稻遗传多样性及群体结构分析
Genetic Diversity and Population Structure Analysis of Currently Cultivated Rice Landraces from Hani’s Terraced Fields in Yunnan Province
摘要
Abstract
In order to provide useful information for protection and utilization of rice landraces from Hani’s Terraced Fields,the genetic diversity and population structure of the currently cultivated lines were determined by using molecular makers.In this study,1 18 SSR markers were used to detect the polymorphism of 47 local rice materials,and their genetic diversity and population structure were analyzed.There were a total of 255 alleles,ranging from 2 to 4 per locus,with the mean of 2.1 6 1 .Genetic diversity index varied from 0.043 to 0.65 6 with an average of 0.303.The polymorphic information content (PIC)ranged from 0.042 to 0.583 with the average of 0.25 6.There are two highly polymorphic loci (PIC> 0.5 )and 66 moderately polymorphic loci (0.25 < PIC < 0.5 ).All the landraces could be divided into two groups,partial indica group and partial japonica group,based on the genetic similarity coefficient and mathematical model of population structure.There was no obvious regularity between clustering results and altitude, but partial indica red rice group had two clusters coming from different altitudes.In conclusion,currently cultivated rice in Hani’s Terraced Fields had a majority of landraces belonging to indica type,and lower genetic diversity than that in previous reports.关键词
水稻/哈尼梯田/SSR 标记/遗传多样性/群体结构Key words
Oryza sativa L./Hani’s Terraced Fields/SSR marker/genetic diversity/population structure分类
生物科学引用本文复制引用
刘承晨,金银根,刘巧泉,赵富伟,吴晓霞,张昌泉,朱孔志,薛达元,武建勇,黄绍文,徐小颖..云南哈尼梯田当前栽培水稻遗传多样性及群体结构分析[J].中国水稻科学,2015,(1):28-34,7.基金项目
国家973计划资助项目(2013CBA01402) （2013CBA01402）
国家自然科学基金资助项目(31300324) （31300324）
教育部重点项目 （）
环境保护部生物多样性保护专项 （）
江苏省高校“青蓝工程”资助项目 （）
江苏省自然科学基金资助项目(13KJB180028) （13KJB180028）
