ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2009, Vol. 40 ›› Issue (7): 1106-1111.doi:

• 研究简报 • Previous Articles     Next Articles

Polymorphism of PRKAG3 Gene and Its Association with Carcass and Meat Quality Traits in Beef Cattle

LI Wufeng 1, YANG Runjun 3, GAN Qianfu 2, ZHANG Lupei 2,
XU Shangzhong 2*, LI Junya 2, GAO Xue 2
   

  1. 1.College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China; 2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China；3. College of Animal Science and Technology, Northwest Agricultural and Forestry University, Yangling 712100,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-07-24 Published:2009-07-24
  • Contact: XU Shangzhong

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Abstract: Polymorphisms of PRKAG3 gene were detected in 267 beef cattle in 7 beef cattle breeds (Simmental, Angus, Hereford, Charolais, Luxi cattle, Limousin and Jinnan cattle) by PCRRFLP. Two polymorphic sites T2643C and T2885C were found(DQ082736), both of them in intron 4. Association analysis of the two SNPs with 9 carcass and meat quality traits was carried out. The results showed that T2885C substitution of PRKAG3 gene is significantly associated(P＜005) with meat tenderness, and the mean value of individuals with genotype CC is lower than that of individuals with genotype CD and DD. The information found in the present research is very important for meat quality breeding in beef cattle by markerassisted selection.