[an error occurred while processing this directive]

HEREDITAS ›› 2012, Vol. 34 ›› Issue (1): 72-78.doi: 10.3724/SP.J.1005.2012.00072

• en • Previous Articles     Next Articles

Polymorphism of MSTN gene and its association with growth traits in yellow catfish (Pelteobagruse fulvidraco)

ZHU Yuan-Yuan1,2, LIANG Hong-Wei2,3, LI Zhong2,3, LUO Xiang-Zhong2,3, LI Lin1,2, ZHANG Zhi-Wei1,2, ZOU Gui-Wei2,3   

  1. 1. Fisheries College of Huazhong Agricultural University, Wuhan 430070, China 2. Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China 3. Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
  • Received:2011-05-12 Revised:2011-07-17 Online:2012-01-20 Published:2012-01-25

Abstract: Myostatin (MSTN) gene has negative influence on the growth of muscle, which belongs to transforming growth factor-β family. Using single-strand conformation polymorphism (SSCP), single nucleotide polymorphisms (SNPs) of MSTN gene were detected in yellow catfish. Correlation analysis between MSTN polymorphisms and growth traits was also carried out. Results indicated that five genotypes (AA, BB, CC, CD and DD) were found in the first intron with one deletion site and two mutant sites (T1003del, G1022A and T1063G), two genotypes (EE and EF) were found in the third exon with one mutant site (T132C). The individuals with genotypes AA had a lager value than the individuals with the genotype CD and DD in total length, body length, body height, body width, head length and body weight (P<0.05). The female individuals with genotypes AA also had a lager value than the female individuals with genotypes DD in total length, body length, body height, body width, caudal peduncle height, caudal peduncle width and body weight (P<0.05). This implies that genotype AA has a positive influence on the growth traits of female yellow catfish, and genotype DD is opposite. Genotypes AA and DD can be used in marker assisted selection of female yellow catfish breeding in the future.

Key words: yellow catfish, MSTN, mutant site, polymorphism, growth traits