首页> 外文期刊>Animal Science Journal >Association of an SNP marker in exon 24 of a class 3 phosphoinositide-3-kinase (PIK3C3) gene with production traits in Duroc pigs.
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Association of an SNP marker in exon 24 of a class 3 phosphoinositide-3-kinase (PIK3C3) gene with production traits in Duroc pigs.

机译:杜洛克猪的3类磷酸肌醇-3-激酶( PIK3C3 )基因外显子24中SNP标记与生产性状的关联。

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摘要

A C left-right-arrow T single nucleotide polymorphism (SNP) on exon 24 of the swine class 3 phosphoinositide-3-kinase (PIK3C3) gene may be a genetic marker for selecting backfat (BF) thickness and carcass fat. Associations between this PIK3C3 polymorphism and production traits were therefore investigated in 739 Duroc swine. The C allele frequency in the study population was 67.9%. The PIK3C3 polymorphism exhibited significant effects upon average daily wt. gain (ADG), BF thickness, intermuscular fat content (IMF) and the size of the loin eye meat area (EMA). C alleles increased ADG, BF and IMF, and decreased EMA. Predicted differences in traits between the homozygous swine of the C and T alleles were 40 g/day for DG, 1.2 mm for BF, 0.44% for IMF and 1.6 cm2 for EMA. Furthermore, statistical models for estimating the breeding values of each trait had lower Akaike's information criterion values when PIK3C3 genotype information was added. Results suggest that the PIK3C3 polymorphism studied (C2604T) shows potential as a genetic marker for production traits in Duroc swine.
机译:猪3类磷酸肌醇-3-激酶( PIK3C3 )基因第24外显子的AC左右箭头T单核苷酸多态性(SNP)可能是选择背脂(BF)厚度和体脂肪。因此,在739只杜洛克猪中研究了 PIK3C3 多态性与生产性状之间的关联。研究人群的C等位基因频率为67.9%。 PIK3C3 多态性对平均每日体重具有显着影响。增重(ADG),高炉厚度,肌间脂肪含量(IMF)和腰眼肉面积(EMA)大小。 C等位基因增加ADG,BF和IMF,并降低EMA。 C和T等位基因纯合猪的性状差异预计为:DG 40 g /天,BF 1.2 mm,IMF 0.44%和EMA 1.6 cm 2 。此外,当添加 PIK3C3 基因型信息时,用于估计每个性状的育种值的统计模型的Akaike信息标准值较低。结果表明,研究的 PIK3C3 多态性(C2604T)显示出作为杜洛克猪生产性状的遗传标记的潜力。

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