小麦白粉病抗性的全基因组关联分析  

Genome-wide Association Analysis of Powdery Mildew Resistance in Wheat

作　　者：陆晴[1] 宋茂兴 马宏亮 吴志会[1] LU Qing;SONG Maoxing;MA Hongliang;WU Zhihui(Tangshan Academy of Agricultural Sciences,Tangshan Hebei 063000,China)

机构地区：[1]唐山市农业科学研究院,河北唐山063000

出　　处：《种子》2023年第2期15-20,27,共7页Seed

基　　金：唐山市科技计划项目(22150217 A);唐山市人才资助项目(202005023)。

摘　　要：对我国华北、华东、华中等多个地区的215份小麦种质资源进行成株期白粉病抗性表型鉴定,结合小麦16 K高密度芯片进行全基因组关联分析(GWAS)。结果表明,有25个SNP位点与小麦白粉病抗性显著相关,其中位于2 B染色体上的1个区段及位于3 B染色体上的1个位点在多个环境中被检测到;位于2 B染色体上的区段与已命名的小麦白粉病抗性基因Pm51距离相近,推测为同一位点;位于3 B染色体上的位点推测是一个新位点。A total of 215 wheat germplasm resources from North,East and Central China were selected to identify powdery mildew resistance phenotypes at adult stage,the genome-wide association analysis(GWAS) was performed with wheat 16 K high density microarray.The results showed that 25 SNP loci were significantly associated with wheat powdery mildew resistance,among which 1 loci on chromosome 2 B and 1 loci on chromosome 3 B were detected in multiple environments.The region located on chromosome 2 B was close to the named wheat powdery mildew resistance gene Pm51,which was presumed to be the same locus.The loci located on chromosome 3 B might be a new locus.

关 键 词：小麦 白粉病 抗性基因 全基因组关联分析 

分 类 号：S512.1[农业科学—作物学]