›› 2019, Vol. 31 ›› Issue (10): 1608-1614.DOI: 10.3969/j.issn.1004-1524.2019.10.05

• Animal Science • Previous Articles     Next Articles

Association analysis between polymorphism of ESR1 gene and egg quality in quail

BAI Junyan, FAN Hongdeng, CAO Heng, PANG Youzhi*, SONG Xiaojie, JIANG Mengjuan, FU Xueyan, LU Xiaoning, YANG Shuai, LI Xinyue, HAO Weiguang, LI Ziheng, ZHENG Feiyang   

  1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China
  • Received:2019-01-26 Online:2019-10-25 Published:2019-10-30

Abstract: In order to investigate the relationship between the polymorphism of estrogen receptor (ESR1) gene and quail egg quality, the polymorphism of ESR1 gene was detected by PCR-RFLP in three populations, including Chinese yellow quail, Korean quail and Beijing white quail, and the correlation between the polymorphism of ESR1 gene and quail egg quality traits was analyzed. The results showed that CC, CT and TT genotypes were detected in exon 1, exon 4 and exon 8 of quail ESR1 gene in Beijing white quail, Chinese yellow quail and Korean quail. Exon 1 showed the highest frequency of CC genotype in all three quail populations, Exon 8 showed the highest frequency of TT genotype in all three quail populations, Exon 4 showed the highest frequency of TT genotype in Chinese yellow quail and Korean quail, 0.409 and 0.617, respectively, while Beijing white quail had the highest frequency of CC genotype (0.667).The results of correlation analysis showed that the yolk height and yolk index of CC genotype and CT genotype in exon 4 were significantly higher than TT genotype (P<0.05), the yolk width of TT genotype was significantly higher than CC genotype and CT genotype (P<0.05), and the shell thickness of CT genotype and TT genotype was significantly higher than CC genotype (P<0.05). In exon 8, the yolk index of CC genotype was significantly higher than that of CT genotype and TT genotype (P<0.05), and the yolk width of TT genotype of CT genotype was significantly higher than that of CC genotype (P<0.05). ESR1 gene can be used as a valuable candidate gene for molecular marker-assisted selection in egg quails.

Key words: quail, ESR1 gene, egg quality, association analysis

CLC Number: