INHERITANCE OF THE MAJOR GLUCOSINOLATES OF RAPESEED (BRASSICA NAPUS) MEAL

Glucosinolate content of rapeseed (Brassica napus L.) meal was investigated in parental, hybrid and segregating populations derived from the cultivar Bronowski, and a strain derived from Target. The gluconapin, glucobrassicanapin and progoitrin content of seed meal was determined by the genotype of the maternal plant, rather than the embryo genotype. Higher values of gluconapin were partially dominant to the lower values. Three loci were indicated in the control of gluconapin content. Overdominance of high values of glucobrassicanapin was demonstrated. Four or five loci probably control glucobrassicanapin content. The high values of progoitrin were partially dominant to the absence of progoitrin. Four loci were indicated for progoitrin. The gene systems controlling the three compounds did not segregate independently of each other.