›› 2011, Vol. 38 ›› Issue (1): 129-132.

• 遗传繁育 • Previous Articles     Next Articles

Association analysis of SNPs of GH Gene and Economic Traits of Chinese Simmental Populations

ZHANG Chao1，LI Jiao2，TIAN Lu1,2,3，LI Jun-ya2，HUANG Meng2，XU Shang-zhong2   

  1. （1.Beijing Vocational College of Agriculture, Beijing 102442, China；2.Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China；3.College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China）
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-01-01 Published:2011-01-01
  • Contact: XU Shang-zhong

Abstract: Based on the technologies of PCR-RFLP and DNA sequencing, the polymorphism of GH-P3 position within growth hormone (bGH） gene among the individuals of Chinese Simental population was estimated, and associated with the economic traits of Simmental populations by using the least square meas (LSM) based general lineal model (GLM). The results showed that individuals with BB genotype possessed statistically heavier carcass weight than those with AA and AB genotype (P＜0.01), the dressing percentage and meat percentage of BB genotype individuals were higher than AA and AB genotypes respectively (P＜0.05), and the backfat thickness of AA genotype was lower than AB and BB genotypes (P＜0.01). These results indicated that position of GH-P3 within bGH gene significanlty and very significanlty influences the economic traits including carcass weight, dressing percentage, carcass weight, meat percentage and backfat thickness of Chinese Simmental population, which provided theoretical references for the molecular assisted selection (MAS) of key economic traits and germplasm enhancement of Chinese Simmental populations.

Key words: Chinese Simmental populations; GH gene; economic traits

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