Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (5): 206-217. doi: 10.7668/hbnxb.20194032

Special Issue: Animal husbandry

• Animal Husbandry·Fisheries·Veterinarian • Previous Articles     Next Articles

Genome-wide Association Analysis of Angus Cattle Cross Section Height Traits and the Effect of PSEN1 Gene on Proliferation and Differentiation of Myogenic Cells

LI Desheng1,2, JIANG Qiufei3, FENG Yuan3, WANG Yu3, FENG Xiaofang1,2, YU Baojun1,2, CHEN Yafei4, ZHANG Di1,2, WANG Chuanchuan1,2, LI Leilei1,2, GU Yaling1,2, ZHANG Juan1,2   

  1. 1 College of Animal Science and Technology,Ningxia University,Yinchuan 750021,China
    2 Key Laboratory of Ruminant Molecular Cell Breeding in Ningxia,Yinchuan 750021,China
    3 Animal Husbandry Extension Station,Yinchuan 750002,China
    4 Yinchuan City Animal Husbandry Technology Extension Service Center,Yinchuan 750021,China
  • Received:2023-05-05 Published:2023-10-28

Abstract:

The purpose of this study was to screen single nucleotide polymorphisms(SNPs)and candidate genes significantly associated with high cross traits in Angus cattle in Ningxia,and to investigate the effect of interference with PSEN1 on the proliferation and differentiation of myogenic cells.A group of 211 Angus cows reared in Ningxia was used to screen SNPs and candidate genes significantly associated with high cross traits in Angus cows by genome-wide association analysis;the expression pattern of candidate genes at different differentiation periods of adult myoblasts was detected by Real-time Fluorescence Quantitative PCR(qRT-PCR);the specific interfering fragment of synthetic gene PSEN1 was transfected into adult myoblasts;qRT-PCR and EdU staining techniques were used to detect the effect of PSEN1 gene on myogenic cells.The results showed that 14 SNPs located on chromosomes 1,3,4,5,7,10,13,15,20 and 28 and the corresponding 13 candidate genes were significantly associated with high cross section.During myogenic cell differentiation,the expression of PSEN1 gene showed a trend of increasing and then decreasing,reaching the highest on the fourth day.Compared with the control group,the positive cell rate was extremely significantly lower in the interference group(P<0.01),the expression of muscle development marker genes PAX3,MEF2C,IGF2 and MYOG was significantly lower(P<0.05),and the genes PCNA,MEF2B,MYH1,CDK1 and MYF5 showed an overall decreasing trend although the differences were not significant,indicating that interference PSEN1 gene suppressed the proliferation and differentiation of myogenic cells.This study identified candidate genes affecting the cross height trait in Angus cattle,which provided a basis for the improvement of production performance and breed selection in Ningxia Angus cattle;PSEN1 gene had an important role in the proliferation and differentiation of adult myoblasts and might be a potential candidate gene affecting the growth and development of Angus cattle.

Key words: Angus cattle, Height cross, Genome-wide association analysis, SNP, PSEN1, Myogenic cells

Cite this article

LI Desheng, JIANG Qiufei, FENG Yuan, WANG Yu, FENG Xiaofang, YU Baojun, CHEN Yafei, ZHANG Di, WANG Chuanchuan, LI Leilei, GU Yaling, ZHANG Juan. Genome-wide Association Analysis of Angus Cattle Cross Section Height Traits and the Effect of PSEN1 Gene on Proliferation and Differentiation of Myogenic Cells[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(5): 206-217. doi: 10.7668/hbnxb.20194032.

share this article