Genome-wide association study on reproductive traits in Jinghai Yellow Chicken

•Seven SNPs reaching genome-wide significance were found.•Five candidate genes for BWF, FEW, EN300 and HA traits were found.•Candidate gene for BW300, AFE and MSI traits was not found.•An additional 46 SNPs tended toward having an association with reproductive traits. To identify molecular markers a...

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Bibliographic Details
Published in:Animal reproduction science 2015-12, Vol.163, p.30-34
Main Authors: Zhang, G.X., Fan, Q.C., Wang, J.Y., Zhang, T., Xue, Q., Shi, H.Q.
Format: Article
Language:English
Subjects:
Animals
Body Weight
Candidate gene
Chickens - genetics
Chickens - growth & development
Female
Gene Expression Regulation - physiology
Genome-wide analysis
Genome-Wide Association Study
Jinghai Yellow Chicken
Male
Oviposition - genetics
Oviposition - physiology
Polymorphism, Single Nucleotide
Reproduction - genetics
Reproduction - physiology
Reproductive traits
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Summary:•Seven SNPs reaching genome-wide significance were found.•Five candidate genes for BWF, FEW, EN300 and HA traits were found.•Candidate gene for BW300, AFE and MSI traits was not found.•An additional 46 SNPs tended toward having an association with reproductive traits. To identify molecular markers and candidate genes associated with reproductive traits, a genome-wide analysis was performed in Jinghai Yellow Chickens to analyze body weight at first oviposition (BWF), age at first oviposition (AFE), weight of the egg at first oviposition (FEW), egg weight at the age of 300 days (EW300), number of eggs produced by 300 days of age (EN300), egg hatchability (HA) and multiple selection index for egg production (MSI). The results showed that seven single nucleotide polymorphisms (SNPs) were associated with reproductive traits (P
ISSN:0378-4320
1873-2232
DOI:10.1016/j.anireprosci.2015.09.011