A novel er1 allele and the development and validation of its functional marker for breeding pea (Pisum sativum L.) resistance to powdery mildew

作者：Sun S, Deng D, Wang Z, Duan C, Wu X, Wang X, Zong X, Zhu, Z

影响因子：

刊物名称：Theoretical and Applied Genetics

出版年份：2016

卷：129  期：5  页码：909-919

文章摘要：

Pea powdery mildew caused by Erysiphe pisi DC is a major disease worldwide. Pea cultivar ‘DDR- 11’ is an elite germplasm resistant to E. pisi. To identify the gene conferring resistance in DDR-11, the susceptible Bawan 6 and resistant DDR-11 cultivars were crossed to produce F1, F2, and F2:3 populations. The phenotypic segregation patterns in the F2 and F2:3 populations fit the 3:1 (susceptible:resistant) and 1:2:1 (susceptible homozygotes :heterozygotes:resistant homozygotes) ratios, respectively, indicating that resistance was controlled by a single recessive gene. Analysis of er1-linked markers in the F2 population suggested that the recessive resistance gene in DDR- 11 was an er1 allele,