China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (4): 1384-1392.doi: 10.16431/j.cnki.1671-7236.2022.04.020

• Genetics and Breeding • Previous Articles     Next Articles

Correlation Analysis of VNN1 Gene Polymorphism and Lambing Number in F3 Generation Boza Goats

RUAN Yong1,2,3, CHEN Xiang1,2,3, DAI Lingang1,2,3, HUANG Jiajin1,2,3, AN Dongwei1,2,3, ZOU Qishun4   

  1. 1. Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang 550025, China;
    2. Guizhou Key Laboratory of Animal Genetics, Breeding and Reproduction, Guiyang 550025, China;
    3. College of Animal Science, Guizhou University, Guiyang 550025, China;
    4. Hongmu Sheep Industry Co., Ltd., Tongren 564300, China
  • Received:2021-10-11 Online:2022-04-05 Published:2022-03-25

Abstract: 【Objective】 This experiment was conducted to investigate the relationship between panthenoyl mercaptoethamine-1 (VNN1) gene polymorphism and lambing number of F3 generation Boza goats,so as to provide molecular guidance for breeding of F3 generation Boza goats.【Method】 107 F3 generation Boza goats were selected for this experiment,blood samples were collected to extract DNA.According to the exon sequence of VNN1 gene(accession No.:NC_030816.1),7 pairs of primers were designed for PCR amplification and sequencing.DNAStar software was used to analyze the sequencing results,and PCR amplification and sequencing were performed on the entire group of possible single nucleotide polymorphism (SNP) sites.Hardy-weinberg equilibrium and genetic diversity analysis were carried out,and the correlation analysis between the different genotypes of VNN1 gene and the lamb number in F3 generation Boza goats was conducted by SPSS 16.0 statistical software.【Result】 There were 7 SNPs in exons 5 and 7 of VNN1 gene (g.10956 A→G,g.11010 C→T,g.11103 C→T,g.11284 C→A,g.11313 T→C,g.18094 C→T and g.18158 G→C),and 3 different genotypes existed in each site.χ2 test showed that g.10956 A→G,g.11010 C→T,g.11103 C→T,g.11313 T→C and g.18094 C→T were in Hardy-Weinberg equilibrium.g.11284 C→A and g.18158 G→C were hardy-Weinberg disequilibrium.The polymorphic information content was moderate polymorphis (0.25<PIC<0.5).Correlation analysis showed that g.11010 C→T and g.11313 T→C were significantly correlation with the lamb number in F3 generation Boza goats,CC genotype of g.11010 C→T was lower than CT and TT genotypes;TT genotype of g.11313 T→C was significantly lower than TC and CC genotypes (P<0.05).There was no significant correlation between g.10956 A→G,g.11103 C→T and g.18158 G→C and the lamb number in F3 generation Boza goats (P>0.05).【Conclusion】 There were 7 SNPs in exons 5 and 7 of VNN1 gene,g.11010 C→T and g.11313 T→C of VNN1 gene were significantly correlated with the number of lambs in F3 generation Boza goats,and VNN1 gene could be used as a candidate gene.

Key words: VNN1 gene; F3 generation Boza goats; single nucleotide polymorphism (SNP); lambing number; correlation analysis

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