Authors: YanJun Kou XiangHua Li JingHua Xiao ShiPing Wang
Publish Date: 2010/11/03
Volume: 53, Issue: 11, Pages: 1263-1273
Abstract
Despite the importance of quantitative disease resistance during a plant’s life little is known about the molecular basis of this type of hostpathogen interaction because most of the genes underlying resistance quantitative trait loci QTLs are unknown To identify genes contributing to resistance QTLs in rice we analyzed the colocalization of a set of characterized rice defenseresponsive genes and resistance QTLs against different pathogens We also examined the expression patterns of these genes in response to pathogen infection in the parents of the mapping populations based on the strategy of validation and functional analysis of the QTLs The results suggest that defenseresponsive genes are important resources of resistance QTLs in rice OsWRKY451 is the gene contributing to a major resistance QTL NRR OsGH31 and OsGLP members on chromosome 8 contribute alone or collectively to different minor resistance QTLs These genes function in a basal resistance pathway or in major disease resistance genemediated racespecific pathways
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