Abstract：Calpastatin (CAST) is the endogenous inhibitor of calpain system, which has been found to affect the postmortem tenderization of skeletal muscle. Using PCR-RFLP, the polymorphism of CAST gene in five pig populations (total of 110 pigs), were analysed, and the relationship between the CAST genotypes and pork quality and backfat was evaluated. The results showed that there were 4 polymorphism sites (A, B, C and D) in CAST gene which presented a significant differences in the five populations. In A and B sites, the genotype effects were significant on pork tenderness only(P<0.05); the gene additive effects were significant (P <0.05) but the dominant effects were not. In C site, the genotype effects were not significant on all the traits analysed(P >0.05). In D site, the genotype effects were significant on backfat only(P <0.05); the gene dominant effects were significant(P <0.05), but the additive effects were not. It is concluded that CAST gene can be used as a candidate gene for pork quality and carcass quality traits.
孙立彬;孟和;李婧;李长龙;白春艳;潘玉春. 梅山猪等5个群体中钙蛋白酶抑制蛋白基因的多态性及其与肉质和背膘厚的关系[J]. , 2006, 14(2): 156-161.
SUN Li-bin;MENG He;LI JING;LI Chang-long;BAI Chun-yan;PAN Yu-chun. Analysis of Calpastatin Gene Polymorphism and Its Associations with Pork Quality and Backfat in Five Pig Populations. , 2006, 14(2): 156-161.
