畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (9): 1502-1514.doi: 10.11843/j.issn.0366-6964.2015.09.004

• 遗传繁育 • 上一篇    下一篇

京海黄鸡体组成性状的全基因组关联分析

张涛1,2,樊庆灿1,2,张向前1,2,张跟喜1,2,王金玉1,2 *,顾玉萍3   

  1. (1.扬州大学动物科学与技术学院,扬州 225009;2.江苏省动物遗传繁育与分子设计重点实验室,扬州 225009; 3.江苏京海集团,南通 226103)
  • 收稿日期:2014-10-13 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 王金玉,教授,博士生导师,E-mail:jywang@yzu.edu.cn
  • 作者简介:张涛(1990-),男,山东临沂人,博士生,主要从事动物遗传育种与繁殖研究,E-mail:zt991279320@126.com
  • 基金资助:

    国家肉鸡产业技术体系(nycytx-42-G1-05);江苏高校优势学科建设工程;江苏省动物遗传繁育与分子设计重点实验室

A Genome-wide Association Study on Body Composition of Jinghai Yellow Chicken

ZHANG Tao1,2,FAN Qing-can1,2,ZHANG Xiang-qian1,2,ZHANG Gen-xi1,2,WANG Jin-yu1,2* ,GU Yu-ping3   

  1. (1.College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,China;2.Key Laboratory of Animal Genetics,Breeding,Reproduction and Molecular Design of Jiangsu Province,Yangzhou 225009,China;3.Jiangsu Jinghai Poultry Group Co.,Ltd.,Nantong 226103,China)
  • Received:2014-10-13 Online:2015-09-23 Published:2015-09-23

摘要:

为了获得影响京海黄鸡体组成性状的SNPs标记及候选基因,为京海黄鸡的进一步遗传改良提供新的方法,本研究使用Illumina公司的鸡60K SNP芯片,对京海黄鸡13个体组成性状进行全基因组关联分析。共筛选出13个与体组成性状达到5%Bonferroni全基因组显著相关的SNPs(P<1.8E-6),130个达到5%Bonferroni全基因组潜在相关的SNPs(P<3.59E-5)。13个显著SNPs位于GRIK1、NCAPGKCNIP4和CACNA2D2等12个基因的附近或内部,其中6个SNPs位于4号染色体上一个1.6 Mb区域(74.3~75.9 Mb)。130个潜在显著的SNPs中,有25个集中分布在4号染色体上的一个7.4 Mb(71.5~78.9 Mb)的区域内。共构建了5 650种单倍型,其中,14个与京海黄鸡6个体组成性状显著相关,14个单倍型中,9个位于4号染色体74.3~75.9 Mb区域内,该区域内包括LCORLQDPRKCNIP4、LDB2和FAM184B在内的多个功能基因。本研究结果表明,位于4号染色体的71.5~78.9 Mb区域以及该区域附近的GRIK1、NCAPGKCNIP4、CACNA2D2、LCORLQDPRKCNIP4、LDB2和FAM184B基因对京海黄鸡的体组成有重要影响。

Abstract:

To scan SNPs and candidate genes affecting body composition traits and provide new methods for further genetic improvement of Jinghai Yellow chicken,a genome-wide association study on 13 body composition traits was carried out using the Illumina chicken 60K SNP Beadchip in Jinghai Yellow chicken in the present study.The result showed that a total of 13 SNPs reached 5% Bonferroni genome-wide significant level(P<1.8E-6) and 130 SNPs reached “suggestive” genome-wide significant level(P<3.59E-5) with body composition traits.The 13 significant SNPs were located nearby or in 12 candidate genes including GRIK1,NCAPGKCNIP4,CACNA2D2,and so on,among which 6 SNPs were located in a region approximately 1.6 Mb in length on chicken chromosome 4(74.3-75.9 Mb).Among the 130 “suggestive” significant SNPs,25 SNPs were located in a region 7.4 Mb(71.5-78.9 Mb) in length on chicken chromosome 4.5 650 haplotpyes were established and 14 of them were found to be associated with 6 body composition traits.Nine out of 14 haplotypes were located in the region of 74.3-75.9 Mb on chicken chromosome 4.Five candidate genes of LCORLQDPRKCNIP4,LDB2 and FAM184B were located in this region.The present study suggested that genes located in the region of 71.5-78.9 Mb on chicken chromosome 4 and GRIK1,NCAPGKCNIP4,CACNA2D2,LCORLQDPRKCNIP4,LDB2,FAM184B genes might play important role in regulation of body composition of Jinghai Yellow chicken.

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