›› 2015, Vol. 42 ›› Issue (2): 438-442.doi: 10.16431/j.cnki.1671-7236.2015.02.032

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Polymorphism of ANGPTL3 Gene and its Association Analysis with Meat Traits in Chinese Simmental Cattle

HU Xin1, WANG Guo-fu1,2, WU Hui-guang2,3, LI Chun1,2, GAO Shu-xin1,2   

  1. 1. College of Animal Science and Technology, Inner Mongolia University for Nationality, Tongliao 028000, China;
    2. Institute of Cattle Genetics and Breeding, Inner Mongolia University for Nationality, Tongliao 028000, China;
    3. College of Life Sciences, Inner Mongolia University for Nationality, Tongliao 028000, China
  • Received:2014-08-26 Online:2015-02-20 Published:2015-02-13

Abstract: The aim of this study was to analyze polymorphism of angiopoietin-like protein 3 (ANGPTL3) gene and its association with meat quality traits in order to find markers in Chinese Simmental cattle. 98 Chinese Simmental cattles under identical feeding condition were selected randomly,the polymorphism of exon 4 of ANGPTL3 gene was analyzed by PCR-SSCP and direct sequencing methods.The association between different genotypes of exon 4 of ANGPTL3 gene and meat traits was analyzed in SPSS 19.0 program.One polymorphic site G7358C which had 2 genotypes of CC and CD was found in ANGPTL3 gene.Association analysis of polymorphisms of ANGPTL3 gene showed that the genotypes of different mutation in ANGPTL3 gene were significantly related to fat coverage of carcass,loin muscle area,marbling and IMF (P<0.05).The fat coverage of carcass,loin muscle area,marbling and IMF of individuals with CC genotype was significantly different from that of individuals with CD genotype (P<0.05).The results indicated that CC genotype was favorable genotype at this SNP locus and associated with fat coverage of carcass,loin muscle area,marbling and IMF,which suggested that ANGPTL3 gene could be studied as a candidate gene for molecular marker assisted selection.

Key words: ANGPTL3 gene; polymorphism; meat traits; Chinese Simmental cattle

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