›› 2016, Vol. 43 ›› Issue (4): 1045-1049.doi: 10.16431/j.cnki.1671-7236.2016.04.029

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Polymorphism of PRKAG2 Gene and its Association Analysis with Economic Traits in Peking Duck

ZHANG Chun-lei1,2,3, ZHOU Yuan2, FANG Xing-tang2, HOU Shui-sheng4, ZHANG Gui-ying3, CHEN Hong2, CHEN Guo-hong1   

  1. 1. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
    2. School of Life Sciences, Jiangsu Normal University, Xuzhou 221116, China;
    3. Xuzhou Wanjia Livestock Science and Technology Development Co., Ltd., Xuzhou 221116, China;
    4. Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2015-09-22 Online:2016-04-20 Published:2016-04-27

Abstract: PCR-SSCP and DNA sequencing technology were used to investigate the polymorphism of PRKAG2 gene in the Peking duck population with 334 birds.One SNP (A>G) of PRKAG2 gene was detected, which located at the 3'-untranslating region of PRKAG2 gene, there were three genotypes:AA, AB and BB, and AA genotype was the dominant genotype.It had extremely significant association with weight of 18 days old and chest width (P<0.01), and had significant association with keel length (P<0.05).So this polymorphic locus might serve as a molecular marker for Peking duck selection, and could provide references for improvement of duck performance.

Key words: Peking duck; PRKAG2 gene; economic traits; PCR-SSCP; association analysis

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