Quantitative trait locus analysis of resistance to panicle blast in the rice cultivar Miyazakimochi.

ABSTRACT:

Background

Rice blast is a destructive disease caused by Magnaporthe oryzae, and it has a large impact on rice production worldwide. Compared with leaf blast resistance, our understanding of panicle blast resistance is limited, with only one panicle blast resistance gene, Pb1, isolated so far. The japonica cultivar Miyazakimochi shows resistance to panicle blast, yet the genetic components accounting for this resistance remain to be determined.

Results

In this study, we evaluated the panicle blast resistance of populations derived from a cross between Miyazakimochi and the Bikei 22 cultivar, which is susceptible to both leaf and panicle blast. The phenotypic analyses revealed no correlation between panicle blast resistance and leaf blast resistance. Quantitative trait locus

SUBMITTER: Ishihara T 

PROVIDER: S-EPMC4052777 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature