Unlocking growth potential in Wenchang chickens: A 21 K genotyping array for trait-associated structural variations
文献类型： 外文期刊
作者： Wang, Chong 1 ; Wu, Chulong 1 ; Peng, Chen 1 ; Chen, Anhong 3 ; Zhang, Yuelang 1 ; Yu, Dongyou 1 ; Gu, Lihong 4 ; Wang, Zhengguang 1 ; Zhao, Pengju 1 ;
作者机构： 1.Zhejiang Univ, Hainan Inst, Yongyou Ind Pk, Sanya 572000, Peoples R China
2.Zhejiang Univ, Coll Anim Sci, Hangzhou 310058, Zhejiang, Peoples R China
3.Guangxi Univ, Coll Anim Sci & Technol, Nanning 530004, Guangxi, Peoples R China
4.Hainan Acad Agr Sci, Inst Anim Sci & Vet Med, Haikou 570100, Hainan, Peoples R China
关键词： Structural variation; Chicken; SV genotyping array; GWAS; Poultry breeding
期刊名称：POULTRY SCIENCE （ 影响因子：4.2； 五年影响因子：4.5 ）
ISSN： 0032-5791
年卷期： 2025 年 104 卷 11 期
页码：
收录情况： SCI
摘要： In recent years, the poultry industry has embraced genome-wide assisted breeding techniques for broiler production, focusing primarily on single nucleotide polymorphisms (SNPs). However, the potential of genomic structural variations (SVs) in broiler traits remains largely unexplored due to cost and technology limitations. We developed a new chicken 21 K SV genotyping array and assessed its performance on 303 Wenchang chickens. Our evaluation showed a 99.20 % call rate with 57.13 % polymorphism across all microarray loci that identified SVs within the Wenchang chicken population. Genome-wide association studies (GWAS) of these SVs identified five significant variants associated with economically important traits, along with growth and developmentrelated candidate genes including PLXAN4, ACBD3, and RNASET2. These findings demonstrate the value of SV-based approaches for improving genetic selection methods and enhancing productivity in poultry breeding programs. Our results show that high-quality 21 K SV genotyping arrays have significant potential for poultry breeding applications.
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