Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (4): 225-232. doi: 10.7668/hbnxb.20193872

Special Issue: Animal husbandry

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

Analysis of GJB6 and PRKAA1 Genes Polymorphisms and Their Association with Lambing Number in Huai Goats

HAN Haoyuan1, LI Tao1, LI Shikai2, SONG Xiaoyu3, LI Jun1, HA Si1, ZHAO Jinyan1, WEI Hongfang1, QUAN Kai1   

  1. 1 College of Animal Science and Technology,Henan University of Animal Husbandry and Economy,Zhengzhou 450046,China
    2 College of Animal Science, South China Agricultural University,Guangzhou 510642,China
    3 School of Agriculture,Ningxia University,Yinchuan 750021,China
  • Received:2022-11-21 Published:2023-08-28

Abstract:

To investigate the effects of GJB6 and PRKAA1 genes on the reproductive performance of Huai goats,122 Huai goats with different lambing number were selected as research objects.The primers were designed based on the reference sequences of GJB6 and PRKAA1 genes from the NCBI database.Single nucleotide polymorphisms (SNPs)were screened by PCR and sequencing methods.The genetic diversity,population genetic parameters and association analyses between different genotypes and lambing number were conducted.As a result,two SNPs (g.50694819 C>T and g.50694816 T>C) were detected in GJB6 gene,and both SNPs were synonymous mutations.Three SNPs(g.33691489 T>C,g.33693395 A>T and g.33693100 T>C)were detected in PRKAA1 gene,and they were all located in non-coding regions.The results of polymorphic information content indicated that g.50694819 C>T locus of GJB6 gene and g.33693100 T>C locus of PRKAA1 gene showed low degree of polymorphism,g.50694816 T>C locus of GJB6 gene,g.33691489 T>C and g.33693395 A>T loci of PRKAA1 gene showed moderate degree of polymorphism.The χ2 test showed that the five loci were all in Hardy-Weinberg equilibrium.The results of the association analysis between different genotypes and lambing number for the two SNPs from GJB6 gene showed that the differences were not significant,indicating that these two SNPs were not suitable for multiple lambing traits selection in Huai goats.The lambing number produced by goats with the TC genotype at g.33691489 T>C of PRKAA1 gene was significantly higher than goats with the CC genotype,and the lambing number produced by individuals with the AT genotype at g.33693395 A>T was significantly higher than goats with the AA,TT genotypes(P<0.05).Linkage disequilibrium analysis revealed a strong linkage equilibrium between the g.33691489 T>C and g.33693395 A>T loci(D'>0.8,r2>0.33).Haplotype correlation analysis showed that the lambing number of goats with haplotype TCA was significantly higher than that with haplotypes CTA,CTT,and TTA(P<0.05).The results showed that Huai goats with the TC genotype at the g.33691489 T>C locus,the AT genotype at the g.33693395 A>T locus and TCA haplotype of PRKAA1 gene had higher lambing number,indicating that these two SNPs could be used as candidate molecular markers for lambing number selection in Huai goats.

Key words: Huai goats, PRKAA1 gene, GJB6 gene, SNP, Lambing number

Cite this article

HAN Haoyuan, LI Tao, LI Shikai, SONG Xiaoyu, LI Jun, HA Si, ZHAO Jinyan, WEI Hongfang, QUAN Kai. Analysis of GJB6 and PRKAA1 Genes Polymorphisms and Their Association with Lambing Number in Huai Goats[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(4): 225-232. doi: 10.7668/hbnxb.20193872.

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