文献类型： 外文期刊
作者： Gao, Jinfeng 1 ; Xu, Wenwu 1 ; Zeng, Tao 1 ; Tian, Yong 1 ; Wu, Chunqin 3 ; Liu, Suzhen 3 ; Zhao, Yan 3 ; Zhou, Shuhe 4 ; Lin, Xinqin 4 ; Cao, Hongguo 2 ; Lu, Lizhi 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Anim Sci & Vet, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou, Peoples R China
2.Anhui Agr Univ, Coll Anim Sci & Technol, Hefei, Peoples R China
3.Wenzhou Vocat Coll Sci & Technol, Wenzhou, Peoples R China
4.Wenzhou Golden Land Agr Dev Co Ltd, Wenzhou, Peoples R China
关键词： GWAS; chicken; egg-laying; egg quality; candidate gene
期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：3.471； 五年影响因子：3.821 ）
ISSN：
年卷期： 2022 年 9 卷
页码：
收录情况： SCI
摘要： Egg production is the most important trait of laying hens. To identify molecular markers and candidate genes associated with egg production and quality, such as body weight at first oviposition (BWF), the number of eggs produced in 500 days (EN500), egg weight (EW), egg shell thickness (EST), egg shell strength (ESS), and Haugh unit (HU), a genome-wide analysis was performed in 266 LingKun Chickens. The results showed that thirty-seven single nucleotide polymorphisms (SNPs) were associated with all traits (p < 9.47 x 10(-8), Bonferroni correction). These SNPs were located in close proximity to or within the sequence of the thirteen candidate genes, such as Galanin And GMAP Prepropeptide (GAL), Centromere Protein (CENPF), Glypican 2 (GPC2), Phosphatidylethanolamine N-Methyltransferase (PEMT), Transcription Factor AP-2 Delta (TFAP2D), and Carboxypeptidase Q (CPQ) gene related to egg-laying and Solute Carrier Family 5 Member 7 (SLC5A7), Neurocalcin Delta (NCALD), Proteasome 20S Subunit Beta 2 (PSMB2), Slit Guidance Ligand 3 (SLIT3), and Tubulin Tyrosine Ligase Like 7 (TTLL7) genes related to egg quality. Interestingly, one of the genes involved in bone formation (SLIT3) was identified as a candidate gene for ESS. Our candidate genes and SNPs associated with egg-laying traits were significant for molecular breeding of egg-laying traits and egg quality in LingKun chickens.
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