Glucosinolate Profiles in Broccoli: Variation in Levels and Implications in Breeding for Cancer Chemoprotection

• DOI: 10.21273/jashs.127.5.807
• Publication Date: 2019-01-31T20:03:22Z
• Authors: Allan F. Brown; Gad G. Yousef; Elizabeth H. Jeffery; Barbara P. Klein; Mathew A. Wallig; Mosbah M. Kushad; John A. Juvik
• Keywords: Glucoraphanin; Sulforaphane; Germ plasm; Genetic Variability

Ten broccoli [ Brassica oleracea L. (Botrytis Group)] accessions were grown in several environments to estimate glucosinolate (GS) variability associated with genotype, environment, and genotype × environment interaction identify differences the stability of GSs florets. Significant genetic identified for aliphatic but not indolyl GSs. The percentage GS attributable individual compounds ranged from 54.2% glucoraphanin 71.0% progoitrin. For total GSs, was only 12%. Both qualitative quantitative detected among genotypes. Ten-fold progoitrin, glucoraphanin, levels observed between highest lowest Only two lines, Eu8-1 VI-158, produced other than appreciable amounts. Differences these cultivars also fall spring plantings. Results suggest that factors necessary altering profiles are present within existing germplasm, which makes breeding enhanced cancer chemoprotectant activity feasible.