Genome-wide association study for carcase traits in spent hens at 72 weeks old

被引：5

作者：

Ma, Meng ^{[1
]}

Shen, Manman ^{[1
,2
]}

Qu, Liang ^{[1
]}

Dou, Taocun ^{[1
]}

Guo, Jun ^{[1
]}

Hu, Yuping ^{[1
]}

Lu, Jian ^{[1
]}

Li, Yongfeng ^{[1
]}

Wang, Xingguo ^{[1
]}

Wang, Kehua ^{[1
]}

机构：

[1] Jiangsu Inst Poultry Sci, 58 Cangjie Rd, Yangzhou 225125, Jiangsu, Peoples R China

[2] Yangzhou Univ, Coll Anim Sci & Technol, Yangzhou, Jiangsu, Peoples R China

来源：

ITALIAN JOURNAL OF ANIMAL SCIENCE | 2019年 / 18卷 / 01期

关键词：

Carcase weight; off-layer hen; GWAS; quantitative trait loci; SNP effects; BODY-WEIGHT; BONE TRAITS; RB1; GENE; GROWTH; LOCI; MEAT; POLYMORPHISM; INTERCROSS; DENSITY; QTL;

D O I：

10.1080/1828051X.2018.1507626

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

To determine the genetic architecture underlying spent hen carcase traits, especially in late laying, we used 1512 hens generated from Dongxiang Blue-Shelled and White Leghorn chickens to implement genome-wide association studies by high-density arrays. A total of 266 loci that mapped to (Gallus gallus chromosome) GGA1, GGA4 and GGA27 were detected. After linkage disequilibrium analysis, five SNPs were considered as candidate markers because they located on or near the genes CKAP2, RB1, CCKAR, NCAPG and IGF2BP1. The heritability of all carcase traits was high, and SNP effects ranged from 3.24% to 8.72%. These findings provide new insights into the genetic architecture of carcase traits in spent layer hens.

引用

页码：261 / 266

页数：6

共 44 条

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