China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (10): 3691-3698.doi: 10.16431/j.cnki.1671-7236.2021.10.020

• Genetics and Breeding • Previous Articles     Next Articles

Polymorphism of UCP2 and UCP3 Genes and Its Association with Growth Traits in Yanbian Yellow Cattle

ZHAO Yi1, WANG Sihan1, LIU Lei1, TIAN Quan1, LIU Haixing1, LI Zhongshu1, ZHANG Junzheng1, JI Shuang1,2   

  1. 1. Agricultural College of Yanbian University, Yanji 133000, China;
    2. Engineering Research Center of North-East Cold Region Beef Cattle Science Technology Innovation, Ministry of Education, Yanji 133000, China
  • Received:2021-03-28 Online:2021-10-20 Published:2021-09-30

Abstract: The purpose of this study was to investigate the polymorphism of uncoupling protein 2 (UCP2) and uncoupling protein 3 (UCP3) genes and its association with growth traits in Yanbian Yellow cattle. 120 Yanbian Yellow cattle aged 24 months were used as experimental subjects, construction of mixed DNA pool after extracting blood genomic DNA. UCP2 and UCP3 genes were sequenced and analyzed by DNA sequencing method, the genotyping of UCP2 and UCP3 genes were detected by high resolution melting curve, and the correlation analysis were conducted with growth traits. The results showed that UCP2 gene at 53 412 568 bp had C>G mutation (g. 53412568 C>G) and two alleles of C and G, which formed three genotypes of CG(0.358), GG(0.125) and CC(0.516). UCP3 gene at 53 443 536 bp had C>T mutation (g. 53443536 C>T) and two alleles of C and T, which formed three genotypes of CT(0.383), CC(0.450) and TT(0.167). Correlation analysis showed that the body weight and hip width of CC genotype of UCP2 gene g. 53412568 C>G were significantly higher than those of GG genotype, and the back height of CG genotype was significantly higher than that of GG genotype (P<0.05). The chest circumference of CC genotype individuals of UCP3 gene g. 53443536 C>T was significantly higher than that of TT genotype (P<0.05). In conclusion, UCP2 and UCP3 genes played a certain role in the growth and development of Yanbian Yellow cattle, which could be used as a reference for the research of modern molecular breeding of Yanbian Yellow cattle in the future.

Key words: Yanbian Yellow cattle; UCP2 gene; UCP3 gene; SNP; growth traits

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