Development of Allele Specific SNP Marker for RTSV Resistance Gene at the tsv1 Locus

The application of molecular markers in rice breeding can allow the rapid screening in the early growth stages without phenotype screening. We developed a set of resistance and susceptible-allele specific dominant markers based on SNP of eIF4G gene associated with rice tungro spherical virus (RTSV) resistance through the allele-specific PCR procedure. The allele-specific SNP marker set was tested in F2 population derived from the cross between Unkwang and TW16-1120 and co-segregated with phenotypic data of RTSV resistance screening. This demonstrated that the SNP-specific markers of eIF4G gene can be applied for marker-assisted selection of RTSV resistance.