Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (3): 565-574.DOI: 10.3969/j.issn.1004-1524.2023.03.09

• Animal Science • Previous Articles     Next Articles

Association analysis between GnRH-1 gene polymorphism and egg quality in quail

WANG Longwei1(), BAI Junyan1,2,*(), JIA Xiaoping3, LEI Ying1,2, CHEN Mengke1, FAN Hongdeng1, LU Xiaoning1, HE Yuhan1, ZENG Fanlin1, ZHANG Rongkai1   

  1. 1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, Henan, China
    2. Luoyang Key Laboratory of Animal Genetics and Breeding, Luoyang 471023, Henan, China
    3. College of Agriculture/Tree Peony, Henan University of Science and Technology, Luoyang 471023, Henan, China
  • Received:2022-05-07 Online:2023-03-25 Published:2023-04-07

Abstract:

To explore the correlation between GnRH-1 gene of gonadotropin releasing hormone (GnRH) gene subtype and quail egg quality, the single nucleotide polymorphism (SNP) mutation site of GnRH-1 gene in Chinese yellow quails, Beijing white quails and Korean quails was detected by PCR amplification and DNA sequencing, the polymorphism of GnRH-1 gene and its association with quality of quail eggs were analyzed in order to obtain the molecular markers related to the quality of quail eggs. The results showed that 14 SNP mutations of GnRH-1 gene were detected in Chinese yellow quails, Beijing white quails and Korean quails, which were C71T, C108T, C168T, C178T, A184G, C206T, A209C, C215T, A252G, A279T, C281T, C293G, C339T, C458T. Only two genotypes of A209C and C281T were detected in Chinese yellow quail and Beijing white quail, while other 12 SNP loci detected three genotypes in three quail varieties. Correlation analysis showed that there were significant (P<0.05) correlations between C71T, C215T, A209C and A279G loci of GnRH-1 gene and yolk height and yolk index, and between the A209C locus and the yolk width. There was a significant (P<0.05) correlation between A279G locus and eggshell thickness of quail. In conclusion, GnRH-1 gene could be used as a molecular marker or candidate gene for quail egg quality.

Key words: quail, GnRH-1gene, polymorphism, egg quality, yolk

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