(2 )Genetics of Qua lity Traits (B napus, 2n=4x) Oil content polygenes, additive Erucic acid EEEE/ejeje2e2(each locus 9-10%) Determined by the embryo genotype Glucosinolate Gg G2G2G3G3/g1g1g2g2g3g3 Determined by the mother plant genotype(2)Genetics of Quality Traits (B. napus, 2n=4x) Oil content polygenes, additive Erucic acid E1E1E2E2 /e1e1e2e2 (each locus 9-10%) Determined by the embryo genotype Glucosinolate G1G1G2G2G3G3 /g1g1g2g2g3g3 Determined by the mother plant genotype