C.L.  Zhang, Y.H.  Wang, M.  Xie, M.  Chen, X.H.  Wang, S.S.  Hou, 
    Mitochondrial Coding Gene Polymorphisms Associated with Carcass Traits in Beijing Duck,
    Journal of Animal and Veterinary Advances,
    Volume 9,Issue 19,
    2010,
    Pages 2522-2525,
    ISSN 1680-5593,
    javaa.2010.2522.2525,
    (https://makhillpublications.co/view-article.php?doi=javaa.2010.2522.2525)
    Abstract: PCR-SSCP and DNA sequencing was employed to analyze polymorphisms 
  of the mitochondrial coding gene including ND1-6, ND4L, COX 1-3, ATP6 and ATP8 
  in Chinese Beijing duck and analyze their effects on carcass traits in Beijing 
  duck. The results showed that 4 SNPs (G9259A, T9269C, G9394A and A9601G) were 
  detected in ATP6 gene and 1 SNP (G9902A) was detected in COX 3 gene. The G9902A 
  locus was a nonsynonymous which result in the varation of the coding amino acid 
  (Arg56Gln). The COX 3 locus showed three genotypes (c. 9902GG, c. 9902GA and 
  c. 9902AA) and the frequencies were 0.12, 0.23 and 0.6+5, respectively. The 
  COX 3 locus was significantly associated with carcass traits of Beijing duck 
  (p<0.05).
    Keywords: Mitochondrial DNA;carcass traits;COX 3;duck;significantly;polymorphism;sequencing