Identification of bakanae disease resistance loci in japonica rice through genome wide association study.

ABSTRACT:

Background

Bakanae disease, caused by seed-borne Fusarium species, mainly F. fujikuroi, is a rice disease whose importance is considerably increasing in several rice growing countries, leading to incremental production losses.

Results

A germplasm collection of japonica rice was screened for F. fujikuroi resistance, allowing the identification of accessions with high-to-moderate levels of resistance to bakanae. A GWAS approach uncovered two genomic regions highly associated with the observed phenotypic variation for response to bakanae infection on the short arm of chromosome 1 (named as qBK1_628091) and on the long arm of chromosome 4 (named as qBK4_31750955). High levels of phenotypic resistance to bakanae were associated to the cumulated presence of the resistant alleles a

SUBMITTER: Volante A 

PROVIDER: S-EPMC5465229 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature