《中国畜牧兽医》 ›› 2017, Vol. 44 ›› Issue (8): 2378-2385.doi: 10.16431/j.cnki.1671-7236.2017.08.023

• 遗传繁育 • 上一篇    下一篇

家兔IGF1基因多态性与生长性状的关联分析

肖超能1, 翁吉梅1, 李维1, 江昭华2, 林家栋1, 刘若余1, 李洪林1, 祖盘玉1, 张福平1   

  1. 1. 贵州大学动物科学学院, 高原山地动物遗传育种与繁殖教育部重点实验室, 贵州省动物遗传育种与繁殖重点实验室, 贵阳 550025;
    2. 贵州赤水市农牧局, 赤水 564700
  • 收稿日期:2017-03-03 出版日期:2017-08-20 发布日期:2017-08-18
  • 通讯作者: 张福平 E-mail:zfu-1010@126.com
  • 作者简介:肖超能(1963-),男,贵州贵阳人,学士,高级兽医师,研究方向:家兔饲养繁育和动物疾病防治,E-mail:xiaocn63110@sina.com
  • 基金资助:

    贵州省科技计划项目(黔科合支撑[2016]2512号)

Association Analysis Between Polymorphism of IGF1 Gene and Growth Traits in Rabbit

XIAO Chao-neng1, WENG Ji-mei1, LI Wei1, JIANG Zhao-hua2, LIN Jia-dong1, LIU Ruo-yu1, LIN Hong-lin1, ZU Pan-yu1, ZHANG Fu-ping1   

  1. 1. Guizhou Key Laboratory of Animal Genetics, Breeding and Reproduction, Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Sciences, Guizhou University, Guiyang 550025, China;
    2. Chishui Agriculture and Animal Husbandry Technology Bureau, Chishui 564700, China
  • Received:2017-03-03 Online:2017-08-20 Published:2017-08-18

摘要:

本研究旨在探讨胰岛素样生长因子1(insulin-like growth factor 1,IGF1)基因SNP与家兔生长性状的关联性。采用DNA池、PCR-SSCP方法对家兔IGF1基因的外显子进行多态性检测,结果发现,在家兔IGF1基因的外显子3中检测到1个SNP位点T365C,表现为3种基因型:TT、TC和CC。IGF1基因不同基因型与家兔生长性状的关联分析结果发现,新西兰兔TT基因型个体的初生重、28日龄体重均显著高于TC和CC基因型个体(P<0.05);比利时兔TT基因型个体的初生重、90日龄体重和初生至90日龄的平均日增重均显著高于TC和CC基因型个体(P<0.05);其余品种的各生长性状指标在该位点均没有达到显著水平(P>0.05)。结果提示,IGF1基因可能是影响家兔生长性状的主效基因或与主效基因连锁,T365C位点有望作为提高家兔个体生长性状的分子遗传标记。

关键词: 家兔; IGF1基因; 生长性状

Abstract:

This study was aimed to analyze the association of insulin-like growth factor 1 (IGF1) gene polymorphisms with growth traits in rabbit. The technology of DNA pooling, PCR-SSCP and direct sequencing were used to detect the SNP of IGF1 gene. The results showed that T365C was detected in IGF1 gene exon 3 of rabbit. The SNP (C/T) was devised into three genotypes:TT, TC and CC. The relationships between genotypes and growth traits revealed that the birth weight and the weight at 28 days of age in New Zealand rabbit of TT genotype of T365C locus were significantly higher than TC and CC genotypes (P<0.05), the birth weight, the weight at 90 days of age and average daily gain form birth to 90 days of age in Belgian rabbit of TT genotype of T365C locus were significantly higher than TC and CC genotypes (P<0.05), there were no significant difference of the growth traits in other rabbit breeds (P>0.05).The consequence indicated that IGF1 gene was primarily deduced to be a potential major gene or linked to major gene effecting the growth traits of rabbit, and this SNP (T365C) might be a candidate molecular genetic markers to improve the growth traits of rabbit.

Key words: rabbit; IGF1 gene; growth traits

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