Association of markers with straighthead phenotype using two recombined inbred line (RIL) F9 populations and a global germplasm collection including 72 accessions (some germplasm accessions had no parental alleles for a certain marker).

aThe accessions or RILs selected for marker verification were either resistant with straighthead rating 4 or below or susceptible with rating 6 or above in global germplasm collection and two F9 populations.bA total of 34 accessions were selected for verification of AP3858-1 because remaining 38 had either no alleles of or different from parental Zhe733, R312, Cocodrie and Jing185, and for the same reason, 42 accessions were applied for verification of InDell 11. Hybrid genotypes were included as the resistance group since resistance was dominant over susceptibility.