A genome-wide association study of a global rice panel reveals resistance in Oryza sativa to root-knot nematodes.

ABSTRACT: The root-knot nematode Meloidogyne graminicola is one of the most serious nematode pests worldwide and represents a major constraint on rice production. While variation in the susceptibility of Asian rice (Oryza sativa) exists, so far no strong and reliable resistance has been reported. Quantitative trait loci for partial resistance have been reported but no underlying genes have been tagged or cloned. Here, 332 accessions of the Rice Diversity Panel 1 were assessed for gall formation, revealing large variation across all subpopulations of rice and higher susceptibility in temperate japonica accessions. Accessions Khao Pahk Maw and LD 24 appeared to be resistant, which was confirmed in large pot experiments where no galls were observed. Detailed observations on these two accessions reveale

SUBMITTER: Dimkpa SO 

PROVIDER: S-EPMC4753847 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature