Genetic Components of Self-Incompatibility in Brassica Vegetables

Brassica vegetables are very important to human beings. Self-incompatibility (SI) is a common phenomenon in Brassica. Breeding by SI lines an way utilize heterosis of vegetables. It believed that the inheritance species controlled three linkage genes on S-locus, including SRK (S-locus receptor kinase), SCR cystine-rich protein)/SP11 protein 11), and SLG glycoprotein). female determinant SCR/SP11 pollen S gene. The expression necessary for SRK, it enhances SRK-mediated reaction. In addition these S-locus genes, some other functional molecules also have significant regulatory effects SI, such as ARC1 (arm repeat containing 1), MLPK (M-locus Exo70A1 (exocyst compounds), THLl/THL2 (thioredoxin H-like), MOD (aquaporin), SLR (S-locus-related glycoprotein), BPCI (pollen calcium-binding I), etc. associated with dominant/recessive relationship between alleles. Here, genetic elements molecular mechanisms mainly vegetables, reviewed.