Discovery of a novel er1 allele conferring powdery mildew resistance in Chinese pea (Pisum sativum L.) landraces

作者：Sun S, Fu H, Wang Z, Duan C, Zong X, Zhu Z

影响因子：

刊物名称：PLoS ONE

出版年份：2016

卷：11  期：1  页码： e0147624

文章摘要：

Pea powdery mildew, caused by Erysiphe pisi D.C., is an important disease worldwide. Deployment of resistant varieties is the main way to control this disease. This study aimed to screen Chinese pea (Pisum sativum L.) landraces resistant to E. pisi, and to characterize the resistance gene(s) at the er1 locus in the resistant landraces, and to develop functional marker(s) specific to the novel er1 allele. The 322 landraces showed different resistance levels. Among them, 12 (3.73%), 4 (1.24%) and 17 (5.28%) landraces showed immunity, high resistance and resistance to E. pisi, respectively. The other landraces appeared susceptible or highly susceptible to E. pisi. Most of the immune and highly