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白羽番鸭TLR7基因多态性与部分生产性状的关联分析

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摘要 以白羽番鸭为研究材料,根据鸭的TLR7基因序列(DQ888644)设计引物,扩增TLR7基因的第1外显子和部分内含子,并分析其多态性对生产性状的遗传效应。结果表明:PCR产物出现片段长度多态,产生AA和AB2种基因型,其中AA型为优势基因型,A为优势等位基因;测序结果显示,在内含子区209位碱基发生C→T突变,在280位碱基之后缺失/插入3个碱基AAT;χ2检验结果表明,该座位处于Hardy-Weinberg平衡状态;AA型个体的体重、半潜水长和胫围极显著高于AB型(P<0.01),胫长显著高于AB型(P<0.05),其他指标在各基因型间的差异均未达到显著水平(P>0.05),AA型是白羽番鸭生长性状较为有利的基因型。
作者 张依裕 徐琪 张海波 吉文林 段修军 赵旭庭 陈国宏
机构地区 扬州大学动物科学与技术学院 贵州大学动物科学学院 江苏省畜牧兽医职业技术学院
出处 《中国畜牧杂志》 CAS 北大核心 2009年第19期6-9,共4页 Chinese Journal of Animal Science
基金 国家科技部支撑计划重大专项(2006BDA01A09) 国家水禽产业技术体系项目(农科教发[2008]10号)
关键词 TLR7 片段长度多态 生产性状 白羽番鸭
分类号 S835.2 [农业科学—畜牧学]
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参考文献8

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二级参考文献16

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中国畜牧杂志
2009年 第19期

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