China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (8): 3006-3014.doi: 10.16431/j.cnki.1671-7236.2022.08.016

• Genetics and Breeding • Previous Articles     Next Articles

Analysis of FGFR2 Gene Polymorphism and Their Correlation with Antler Weight Traits in Sika Deer

ZHOU Ya, ZHANG Heyang, LIU Linling, LI Haodong, ZHENG Junjun, WANG Guiwu   

  1. Institute of Special Animal and Plant Sciences of Chinese Academy of Agricultural Sciences, Changchun 130112, China
  • Received:2021-12-29 Online:2022-08-05 Published:2022-07-21

Abstract: 【Objective】 This study was performed to explore the polymorphism of fibroblast growth factor receptor 2 (FGFR2) gene in sika deer and its effect on antler weight traits.【Method】 All exons of FGFR2 gene of sika deer were sequenced and analyzed by direct sequencing.314 24-month-old sika deer were genotyped and haplotyped by MassARRAY® SNP typing technology,and the correlation between different genotypes and haplotypes of FGFR2 gene and antler weight traits was analyzed.【Result】 A total of 12 SNPs were found in the FGFR2 gene in sika deer,of which 5 were located in the exon region,and none of the mutations caused amino acid changes,belonging to synonymous mutations,and the other 7 SNPs were located in the intron region.The typing results showed that g.80975864 T>G site was not successfully typing,and the remaining 11 SNPs were subjected to subsequent analysis.The 3 SNPs of g.80943673 T>C,g.80943683 C>A and g.80938352 C>T belonged to moderately polymorphic (0.25<PIC<0.5),and the rest belonged to low-polymorphism (PIC<0.25). χ2 fitness test results showed that the 2 SNPs of g.80998742 G>A and g.80987708 G>A deviated from Hardy-Weinberg equilibrium (P<0.05),and the others were in Hardy-Weinberg equilibrium.(P>0.05).The results of association analysis showed that there was no significant difference in antler weight among the genotypes of the 11 SNPs (P>0.05).Haplotype results showed that there were five haplotypes in FGFR2 gene,and there was no significant difference between different haplotypes and antler weights (P>0.05).【Conclusion】 The 11 loci at FGFR2 were not the potential markers for antler weight.

Key words: sika deer; fibroblast growth factor receptor 2 (FGFR2) gene; SNP; antler weight

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