›› 2016, Vol. 43 ›› Issue (12): 3293-3299.doi: 10.16431/j.cnki.1671-7236.2016.12.031

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Single Nucleotide Polymorphisms in ESRβ Gene of Black Plumage Quail and Its Association with Egg Production

XIE San-lei, WEN Feng-yun, LI Jun-qiang, WANG Qing, LIANG Yu, LIU Yi-ting, LI Lei, CHEN Yi   

  1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
  • Received:2016-05-18 Online:2016-12-20 Published:2016-12-22

Abstract:

This study aimed to investigate the correlation between ESRβ gene exon polymorphism and egg production of Black plumage egg quail, and provide the theoretical foundation for molecular selection. The healthy Black plumage egg quail were selected as research object, and the egg production were analyzed using SPSS 13.0 software. Estrogen receptor β(ESRβ) subunit gene was selected as candidates gene to screen the genomic variation by PCR-SSCP, and the association of the ESRβ gene polymorphisms with egg production were analyzed. The results of polymorphisms detection showed that exon 1, exon 3, exon 4, exon 5,exon 6,exon 7 and exon 8 of ESRβ gene all had nucleotide variation. The association analysis results of ESRβ gene exons and egg production showed that the egg weight of first laying of exon 3 CD genotype were significantly higher than that of CC and DD genotypes (P<0.05). The age at first laying of exon 5 was also significant difference between DD and CC, CD genotypes (P<0.05). Moreover, the average egg weight of exon 7 CD genotype was significant higher than that of CC and DD genotypes (P<0.05). These data suggested that ESRβ gene could significantly affect egg production of Black plumage egg.

Key words: quail; ESRβ gene; exon; SNPs; egg production

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