G-protein subunit beta 1 like (GNB1L) encodes a G-protein beta-subunit-like polypeptide. Chicken GNB1L is upregulated in the breast muscle of high feed efficiency chickens, and its expression is 1.52-fold that in low feed efficiency chickens. However, no report has described the effects of GNB1L indels on the chicken carcass and growth traits. This study identified a 31-bp indel in the 5′ untranslated region (UTR) of GNB1L and elucidated the effect of this gene mutation on the carcass and growth traits in chickens. The 31-bp indel showed a highly significant association with the body weight at 8 different stages and was significantly correlated with daily gains at 0 to 4 weeks and 4 to 8 weeks. Similarly, the mutation was significantly associated with small intestine length, breast width, breast depth and breast muscle weight. Moreover, DD and ID were superior genotypes for chicken growth and carcass traits. These results show that the 31-bp indel of GNB1L significantly affects chicken body weight and carcass traits and can serve as a candidate molecular marker for chicken genetics and breeding programs.

中文翻译：

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GNB1L 5'UTR区的31 bp插入缺失与鸡的体重和car体性状显着相关。

G蛋白亚基beta 1类似（GNB1L）编码G蛋白β亚基类似多肽。鸡GNB1L在高饲料效率鸡的胸肌中上调，其表达是低饲料效率鸡的1.52倍。但是，没有报道描述GNB1L插入缺失对鸡car体和生长性状的影响。这项研究在GNB1L的5'非翻译区（UTR）中鉴定出一个31 bp插入缺失，并阐明了该基因突变对鸡chicken体和生长性状的影响。31 bp插入缺失显示在8个不同阶段与体重高度相关，并且与0至4周和4至8周的日增重显着相关。同样，该突变与小肠长度，乳房宽度，乳房深度和乳房肌肉重量显着相关。此外，DD和ID是鸡生长和car体性状的优良基因型。这些结果表明，GNB1L的31 bp indel会显着影响鸡的体重和car体性状，并可作为鸡遗传学和育种程序的候选分子标记。