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延边黄牛POU1F1基因PCR-SSCP多态性与生长性状关系的研究 被引量:2

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摘要 为了研究延边黄牛117个个体的垂体特异转录因子(POU1F1)基因多态性及其与断奶体重、体尺等生长性状间的相关性,试验利用单链构象多态(PCR-SSCP)技术,对延边黄牛POU1F1基因第6外显子序列的SNPs进行检测。结果表明:延边黄牛群体POU1F1基因座位存在多态性,发现了2种等位基因(A/G),基因频率分别为0.515 6和0.484 4;该位点纯合度为0.500 5,杂合度为0.499 5,多态信息含量为0.374 8,属于中度多态,处于Hardy-Weinberg平衡状态。纯合基因型个体的POU1F1基因座位存在突变位点。POU1F1基因多态位点遗传分析表明,AB型个体较多,AA型和BB型个体较少。延边黄牛群体内AB基因型个体体长显著(P<0.05)高于AA和BB基因型个体,育肥牛AB型个体胸深显著(P<0.05)低于AA型个体,初步认为AB基因型为优势基因型,对选择有正向效应。提示POU1F1基因有可能作为延边黄牛生长性状的候选基因。
出处 《黑龙江畜牧兽医》 CAS 北大核心 2010年第10期49-51,共3页 Heilongjiang Animal Science And veterinary Medicine
基金 延边大学"211工程"三期重点学科建设项目
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