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首页> 外文期刊>Biochemical Genetics >Chromosome location and association of haplotypes of insulin-like growth factor binding protein-2 with production performance in swine.
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Chromosome location and association of haplotypes of insulin-like growth factor binding protein-2 with production performance in swine.

机译：猪胰岛素样生长因子结合蛋白2的染色体定位和单倍型与猪生产性能的关系。

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摘要

Insulin-like growth factor binding protein-2 is a member of the insulin-like growth factor families. Using a porcine RH panel, the gene was mapped on chromosome 15q22-23. Meanwhile, using polymerase chain reaction single strand conformation polymorphism, genotypic and allelic frequencies were analyzed in 17 pig breeds (total animals 570), together with a chi-square test of Hardy-Weinberg equilibrium. Also the association between haplotypes and production performance was analyzed in a Lantang x Landrace population family (n = 133, total 43 traits). At each locus we investigated, all the breeds showed different genotypic and allelic frequency distributions. In general, the Chinese native pig breeds carried a higher allele A frequency (over 50%) than the European pigs. For production performance, pigs with the CAG haplotype had higher fore-body and rear-body weight than those with the TGT and TAG haplotypes (P < 0.05). Also, pigs with the CAG haplotype had higher bone weight of the rear-body than those with the CAT haplotype (P < 0.05); pigs with the TGT and CAG haplotypes had higher forelimb and rearlimb weight than those with the CAT haplotype (P < 0.01 and P < 0.05, respectively); pigs with the TGG haplotype had higher leaf fat weight than those with the TGT and CAG haplotypes (P < 0.05); and pigs with the CAG haplotype had more stomach weight than those with the CAT and CGT haplotypes (P < 0.01); pigs with the TGT and CAG haplotypes had more ribs and longer body than those with the CGT-TGG, and CAT-TAG haplotypes (P < 0.05). These results suggest that IGFBP-2 is associated with production performance, but our population family was small. More studies with large samples are needed before the IGFBP-2 locus will be useful for a selection program.
机译：胰岛素样生长因子结合蛋白2是胰岛素样生长因子家族的成员。使用猪RH面板，将该基因定位在染色体15q22-23上。同时，使用聚合酶链反应单链构象多态性，分析了17个猪品种（总共570个动物）的基因型和等位基因频率，并进行了Hardy-Weinberg平衡的卡方检验。此外，在Lantang x Landrace人口家庭（n = 133，共43个性状）中分析了单倍型与生产性能之间的关联。在我们调查的每个基因座上，所有品种均表现出不同的基因型和等位基因频率分布。一般而言，中国本地猪品种的等位基因A频率高于欧洲猪（超过50％）。就生产性能而言，具有CAG单体型的猪的前体和后体重量均高于具有TGT和TAG单体型的猪（P <0.05）。同样，具有CAG单倍型的猪的后身骨重高于具有CAT单倍型的猪（P <0.05）。具有TGT和CAG单倍型的猪的前肢和后肢重量高于具有CAT单倍型的猪（分别为P <0.01和P <0.05）;具有TGG单倍型的猪的叶脂重高于具有TGT和CAG单倍型的猪（P <0.05）; CAG单倍型猪的胃重比CAT和CGT单倍型的猪重（P <0.01）;与具有CGT-TGG和CAT-TAG单倍型的猪相比，具有TGT和CAG单倍型的猪具有更多的肋骨和更长的身体（P <0.05）。这些结果表明，IGFBP-2与生产性能有关，但我们的人口家庭很小。在IGFBP-2基因座将用于选择程序之前，需要对大量样品进行更多研究。

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