Population Genetic Structures of Puccinia striiformis f.sp.tritici in Guizhou Province
Yuan Wenya
Sun Zhenyu
Liang Dan
Shi Xiaowei
Chen Jing
Zhang Meiru
Ma Zhanhong
Liu Xiufeng
Abstract：The population genetic diversity of wheat stripe rust (Puccinia striiformis f.sp.Tritici) in Guizhou Province was analyzed by amplified fragment length polymorphism (AFLP).The results showed that 32 AFLP genotypes were obtained from 128 isolates collected from 6 counties in Guizhou Province.No predominant genotype was identified.In which, 1 genotype,zy6,had the highest frequency of 0.195, 3 genotypes had the frequency between 0.050~0.100, and the frequency of the other 28 genotypes was less than 0.050.Shannon coefficient and Φpt statistics results showed that the genetic differentiation among 6 counties was not significant.Mantel test suggested that there was no significant correlation between genetic differentiation and geographical distances.The most parsimonious tree length results showed that the possibility of free recombination for population of Puccinia striiformis f.sp.tritici in Guizhou was very lower.The results indicated that the genetic diversity of P.striiformis was rich in Guizhou Province.
Keywords：Puccinia striiformis f.sp.triticiPopulation genetic structureAFLP marker
Publication Date：2017-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 95-100 )