QTL controlling glucosinolate content in seeds of 'Brassica napus' L (original) (raw)

2016, Australian Journal of Crop Science

Glucosinolates are a group of endogenous secondary metabolites commonly found in Brassica plants. Oilseed rape (Brasscia napus L.) contains toxic glucosinolates in its otherwise high quality meal. Molecular breeding has many advantages over traditional breeding and may provide the solution to further decrease glucosinolate content and/or optimize glucosinolate profiles in the meal. In the present study, the Brassica 60K SNP (single nucleotide polymorphism) Infinium microarrays supplemented with sequence related amplified polymorphism (SRAP) markers were used to map the whole B. napus genome of a DH population derived from an F1. Eight thousand eight hundred and thirty-nine SNP and 35 SRAP markers were organized into 1,220 bins covering 2,597.7 centiMorgans (cM) on 19 chromosomes from 88 DH lines. The average bin density was 0.47 bin/cM. Nine quantitative trait loci (QTLs) controlling total and major glucosinolate components were localized on chromosomes A1, A8, A9, C2, C3 and C9 wit...