China Animal Husbandry and Veterinary Medicine ›› 2019, Vol. 46 ›› Issue (12): 3690-3697.doi: 10.16431/j.cnki.1671-7236.2019.12.028

• Genetics and Breeding • Previous Articles     Next Articles

Polymorphisms of BMP15 Gene Exon 1 and Its Association with Egg Quality in Sizhou Chicken

LI Honglin1, LI Wei2, ZHANG Fuping1, ZU Panyu1, MU Tenghui1, LIU Yang1, LONG Guangli1, LI Kaiyang3, LIN Jiadong1   

  1. 1. Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau, Mountainous Region, Ministry of Education, College of Animal Sciences, Guizhou University, Guiyang 550025, China;
    2. Guizhou Management Station of Livestock Genetic Resources, Guiyang 550001, China;
    3. Animal Health Supervision Institute of Hezhang County in Bijie City of Guizhou Province, Bijie 553200, China
  • Revised:2019-06-18 Online:2019-12-20 Published:2019-12-21

Abstract: This study was aimed to explore the polymorphisms of BMP15 gene exon 1 and its association with egg quality in Sizhou chicken.The direct sequencing of PCR products was adopted to detect the polymorphism of BMP15 gene exon 1 in Sizhou chicken.After direct sequencing,sequence adjusting were conducted using DNAStar software.Data of genotype frequency was counted by Excel 2007 and analyzed by χ2 test.The association of genotype and egg quality were analyzed with SPSS 18.0.The results showed that BMP15 gene exon 1 in Sizhou chicken had four SNPs:397C/T,473A/G,603C/T and 612C/T,which were not in Hardy-Weinberg equilibrium (P<0.05);The polymorphic information content (PIC) of 397C/T and 603C/T loci were 0.3488 and 0.3299,respectively,belonging to moderate polymorphism (0.25 < PIC < 0.5).The PIC of 473A/G and 612C/T loci were 0.1527 and 0.2075,respectively,belonging to low polymorphism (PIC<0.25).The results of correlation analysis showed that the 397C/T locus significantly affected the protein height,Hastelloy unit and egg yolk weight of Sizhou chicken (P<0.05);There were no significant difference of 473A/G and 603C/T loci with egg quality in Sizhou chicken (P>0.05);The 612C/T locus had a significant influence on egg length of Sizhou chicken,respectively (P<0.05).This results suggested that BMP15 gene exon 1 had a larger genetic effect on the protein height and egg length in Sizhou chicken.BMP15 gene might be one of the genes affecting the egg quality in Sizhou chicken,and could be used as a molecular marker for egg quality traits such as protein height and egg length and diameter in Sizhou chicken.

Key words: Sizhou chicken; BMP15 gene; polymorphism; egg quality

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