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A novel missense mutation of bovine lipase maturation factor 1 (LMF1) gene and its association with growth traits

机译:牛脂肪酶成熟因子1(LMF1)基因的新型错义突变及其与生长性状的关系

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Lipase maturation factor 1 (LMF1) gene is a novel candidate?gene in severe hypertriglyceridemia. To detect the polymorphism in?LMF1?gene in 804 Chinese cattle, we firstly described the polymerase chain reaction-single-strand conformation polymorphism (PCR-SSCP), DNA sequence and PCR-RFLP methods for detecting mutations of?LMF1?gene, which affected growth and development in animal. The results showed a novel mutation in exon 4: NC_007326.3: g.27154 T>C, which resulted in a missense mutation within?LMF1protein (p.197 Trp>Arg). Genotype TT was dominant in four breeds, and genotypic frequencies of?LMF1?exon 4?AvaI locus were calculated in four populations which agreed with Hardy-Weinberg equilibrium (p > 0.05).?The?association analysis showed that individuals with genotype TC had greater body weight than those with genotype TT at 12, 18 and 24 months of age in Nanyang cattle (P < 0.05).
机译:脂肪酶成熟因子1(LMF1)基因是严重高甘油三酯血症的新型候选基因。为了检测804只中国牛的“ LMF1”基因多态性,我们首先描述了聚合酶链反应-单链构象多态性(PCR-SSCP),DNA序列和PCR-RFLP方法检测“ LMF1”基因突变,影响动物的生长发育。结果显示外显子4中有一个新突变:NC_007326.3:g.27154 T> C,这导致?LMF1蛋白内部发生错义突变(p.197 Trp> Arg)。基因型TT在四个品种中占主导地位,在四个符合Hardy-Weinberg平衡的种群中计算了“ LMF1”外显子4“ AvaI”基因座的基因型频率(p> 0.05)。与南阳牛在12、18和24个月大时相比,TT型具有更大的体重(P <0.05)。

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