Emergence of Rice Blast AVR-Pi9 Resistance Breaking Haplotypes in Yunnan Province, China.

ABSTRACT: The rice blast disease (caused by Magnaporthe oryzae) is a devastating disease in China. Understanding the molecular mechanisms of interaction for the cognate avirulence (AVR) gene with host resistance (R) genes, as well as their genetic evolution is essential for sustainable rice production. In the present study, we conducted a high-throughput nucleotide sequence polymorphism analysis of the AVR-Pi9 gene that was amplified from the rice-growing regions of the Yunnan Province in China. We detected the presence of seven novel haplotypes from 326 rice samples. In addition, the sequences of AVR-Pi9 were also obtained from two non-rice hosts, Eleusine coracana and Eleusine indica. The sequence analysis revealed the insertions and deletions in th

SUBMITTER: Lu L 

PROVIDER: S-EPMC10302552 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature