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浙江大学学报(农业与生命科学版)41(3):365 ̄370,2015 Journal of Zhejiang University(Agric.8L Life Sci.1 http://www.journals.zju.edu.cn/agr E—mail:zdxbnsb@zju.edu.cn DOI:10.3785/j.issn.1008—9209.2014.06.302 绍兴鸭生长激素基因多态性与生长性能关联性分析 李丽 ,徐琪 ,陈阳 ,黄学涛。,李柳萌 ,陶仲连 ,陈国宏h (1.扬州大学动物科学与技术学院,江苏扬州225009;2.福建省农业科学院畜牧兽医研究所,福州350013 3.浙江省农业科学院畜牧兽医研究所,杭州310021;4.诸暨国家级绍兴鸭保种场,浙江绍兴311800; 5.缙云县畜牧兽医局,浙江缙云321400) 摘要 以绍兴鸭为材料,选择与生长发育密切相关的候选生长激素(growth hormone,GH)基因,通过直接测序方 法扫描其单核苷酸多态性(single nucleotide polymorphism,SNP)位点,并分析其与生长性能的关联性.结果表明: 在GH基因的2 514 A>G和2 691 C>T处检测到2个SNP位点,且2个基因座均处于Hardy-Weinberg平衡状 态.最小二乘法分析表明,GH基因(2 69l C>T)TT基因型个体的6周龄体质量、8周龄体质量、12周龄龙骨长、 53周龄胸宽显著高于CT基因型个体(P<0.05);TT基因型53周龄胸肌质量、腹脂质量、腹脂率显著高于CT和 CC基因型个体(P<0.05).研究为在本品种选育中监测绍兴鸭公鸭的生长发育和充分利用淘汰种公鸭肉用价值提 供了一定的参考材料,同时从分子水平上丰富了绍兴鸭遗传信息. 关键词 绍兴鸭;生长激素基因;单核苷酸多态性;生长性能 中图分类号S 834.89 文献标志码A Correlation between the polymorphism of growth hormone gene with the growth performance in Shaoxing ducks.Journal of Zhejiang University(Agric. &Life Sci.),2015,41(3):365—370 Li Li 一,Xu Qi ,Chen Yang ,Huang Xuetao。,Li Liumeng ,Tao Zhonglian ,Chen Guohong (1.College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,Jiangsu,China 2.Institute of Animal Husbandry and Veterinary Research,F ian Academy of Agricultural Sciences,Fuzhou 350013,China;3.Institute of Animal Husbandry and Veterinary Research Zhei iang Academy of Agricultural Sciences Hangzhou 31 0021 China; 4.Shaoxing Duck National Conservation Field of ZhuJi,Shaoxing 311800,Zhejiang,Chian 5.Jinyun Bureau of Animal Science and Veterianry Medicine,Jinyun 321400,Zhejiang,Chian) Summary As excellent germplasm resources in China,Shaoxing duck is famous for its high egg production all over the world.Laying traits,rather than the growth and development traits,are the main breeding criteria in the duck breeding at present.We usually use egg laying traits as the main breeding goal,but ignore the growth and development traits, especially in drake breeding.Defective growth and development may lead to the loss of duck breeding value and the low fertilization rate,which will finally reduce the economic benefit of drakes.Thus,drakes’growth traits must be emphasized in breeding of laying ducks.We must pay more attention to the selection of the drakes’growth traits. This study analyzed the correlation between the polymorphism of growth hormone(GH)gene with the growth 基金项目:浙江省农业(畜禽)新品种选育重大科技专项项目(2012C12906—14). 通信作者(Corresponding author):陈国宏,E—mail:ghchen@yzu.edu.cn 第一作者联系方式:李丽,E—mail:576801792@qq.com 收稿日期(Received):2014—06—30;接受日期(Accepted):2014—10—28;网络出版日期(Published online):2015—05—19 URI :http://www.cnki net/kcms/detail/33.1247.s.20150519.1352.O16.html
浙江大学学报(农业与生命科学版) 第41卷 performance and slaughter in Shaoxing ducks,which provided some reference material for monitoring the growth and development of Shaoxing ducks breeding. As the candidate genes.GH gene is closely related to the growth and development.The SNP loci of GH were scanned by direct sequencing method.The body size was measured at the age of 1 2 weeks,and the slaughter i