Abstract
Brassica species have been reported to possess cancer preventive activity due to glucosinolates (GLS) and their derived properties. Many studies on GLS have focused on Brassica oleracea and Brassica rapa. However, information on GLS in progeny between Chinese cabbage (B. rapa ssp. pekinensis) and cabbage (B. oleracea var. capitata) remains limited. In this study, eight GLS were detected in the self-crossed progenies of monosomic cabbage alien addition lines in Chinese cabbage (Chinese cabbage – cabbage MAALs) and parental Chinese cabbage, and nine GLS were detected in the parental cabbage. The variation of GLS content ranges was greater in the progeny than in the parental Chinese cabbage. The nine GLS identified were subjected to PCA to evaluate the differences among progeny and parents. Eight progeny samples had a comprehensive principal component score closer to or greater than that of cabbage, and four of them exhibited glucoraphanin (GRA) and total GLS contents greater than that of Chinese cabbage with the relative content of total indolic GLS was greater than 50%. These results offered new opportunity to improve GLS-containing of Chinese cabbage using genes from cabbage.
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