作物杂志Issue(1)：33-46,中插4-中插7,18.DOI:10.16035/j.issn.1001-7283.2026.01.006
云南边境地区稻种资源的SSR标记遗传多样性及其主要农艺性状关联性分析
Analysis of Genetic Diversity by SSR Markers and Correlation of Main Agronomic Traits of Rice Germplasm Resources in Border Areas of Yunnan
摘要
Abstract
To analyze the genetic diversity of rice germplasm resources in the border areas of Yunnan Province and identify SSR markers closely related to major agronomic traits,a total of 376 newly collected rice germplasm resources from Yunnan(China),and its adjacent Myanmar and Laos were used as experimental materials.These resources were divided into three analysis units,and 11 phenotypic traits were investigated.Genetic diversity and association with phenotypic traits were analyzed using 27 pairs of SSR markers.Results showed that a total of 142 allelic variation loci were detected,including 100 rare allelic variation loci and nine peculiar allelic variation loci.Based on the comprehensive evaluation of six genetic diversity parameters,the scoring order of rice germplasm resources from the three analysis units was:Yunnan,China analysis unit>Myanmar analysis unit>Laos analysis unit.Among the 27 pairs of SSR markers,RM214,RM1086,RM5481,RM6089,RM1509,and RM7479 were closely associated with phenotypic traits,could explain more than 10.0%of the variation in panicle length,panicle exsertion,filled grains per panicle,unfilled grains per panicle,grains per panicle,and 1000-grain weight.Principal component analysis of phenotypic traits extracted four principal components with a cumulative contribution rate of 77.218%.A total of 36 excellent germplasm resources(comprehensive score≥1.000)were selected.Among these,Huake,Nalei 5,and Haonuolang had a score greater than 2.000.They demonstrated potential as parents for multiple-tillering and large-panicle type,large-panicle type,and glutinous type,respectively.关键词
云南边境地区/稻种资源/遗传多样性/SSR标记/关联性分析Key words
Yunnan border areas/Rice germplasm resources/Genetic diversity/SSR marker/Correlation analysis引用本文复制引用
汤翠凤,阿新祥,董超,张斐斐,杨雅云,杨红梅,戴陆园,苏振喜..云南边境地区稻种资源的SSR标记遗传多样性及其主要农艺性状关联性分析[J].作物杂志,2026,(1):33-46,中插4-中插7,18.基金项目
国家重点研发计划项目(2021YFD1200505-1) （2021YFD1200505-1）
云南省种子种业联合实验室项目(202205AR070001-11) （202205AR070001-11）
云南省重大科技专项计划(202402AE090035) （202402AE090035）
丽江市苏振喜专家工作站 （）
