Structural Differences of S Locus Between Brassica oleracea and Brassica rapa
Self-incompatibility as well as male sterility is successfully used for the production of F1 hybrid seeds in Brassica vegetables. Since the first commercial F1 hybrid cultivars in cabbage and Chinese cabbage were released by a Japanese seed company using a self-incompatibility system in 1950, many F1 hybrids of various Brassica vegetables have been developed by the same breeding methodology. Although the use of self-incompatibility has a problem of a contamination of selfed seeds in the F1 seeds due to instability of self-incompatibility, many seed companies still adopt self-incompatibility because of their higher yield of the F1 hybrid seeds than the use of the male sterility.
KeywordsBrassica Oleracea Brassica Vegetable Putative Receptor Protein Kinase MluI Fragment
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