新疆5个品种羊不同月龄MSTN基因mRNA表达水平及其与生长性状相关性分析

doi:10.16431/j.cnki.1671-7236.2016.02.026

摘要/Abstract

摘要： 为了探讨不同品种绵羊肌肉生长抑制素(myostatin,MSTN)表达水平及其与生长性状(体重、体高、体长、胸围和管围)的关联性,试验采用实时荧光定量 PCR方法比较阿勒泰羊、吐鲁番黑羊、也木勒白羊、哈萨克羊、巴什拜羊不同月龄(初生及1、2、3、4、5月龄)肌肉和脂肪MSTN mRNA的表达水平,运用SPSS 19.0软件分析与其生长性状的相关性.在肌肉中:初生时,阿勒泰羊、哈萨克羊、巴什拜羊MSTN基因mRNA表达水平均明显低于其他各月龄;也木勒白羊3月龄MSTN基因mRNA水平均显著低于其他各月龄(P<0.05);阿勒泰羊、吐鲁番黑羊MSTN基因mRNA在4月龄表达水平最高;哈萨克羊MSTN基因mRNA初生时表达水平最低,5月龄表达水平最高.在脂肪中:也木勒白羊MSTN基因mRNA表达水平初生时显著低于其他各月龄(P<0.05);阿勒泰羊、也木勒白羊、巴什拜羊MSTN基因mRNA 5月龄表达水平最高,巴什拜羊MSTN基因mRNA 5月龄显著高于其他各月龄(P<0.05);哈萨克羊MSTN基因mRNA 2月龄表达水平最高,显著高于5月龄(P<0.05).相关性分析结果发现,MSTN基因mRNA表达水平与生长性状多呈负相关关系.阿勒泰羊在肌肉和脂肪中MSTN基因mRNA表达水平与其生长性状均呈负相关关系;吐鲁番黑羊MSTN基因mRNA在肌肉中的表达水平与体高、体长呈负相关,其余均呈正相关;也木勒白羊MSTN基因mRNA在肌肉中的表达水平与胸围、管围呈正相关,在脂肪中表达水平与体长呈正相关,其余均呈负相关;哈萨克羊在肌肉和脂肪中除与体长呈正相关外,其余均呈负相关;巴什拜羊在肌肉中MSTN基因mRNA表达水平与体长、管围呈正相关,其余均呈负相关.MSTN基因mRNA在不同月龄不同品种间的表达水平存在差异性,无固定表达模式;且与生长性状多呈负相关关系,与部分体尺性状呈正相关关系.MSTN基因mRNA表达水平可能与生长性状和骨骼生长有直接关系.

关键词: MSTN基因mRNA; 实时荧光定量PCR; 相关性分析

Abstract: To explore the different varieties of five Xinjiang local sheep myostatin (MSTN) expression levels and their correlation with growth traits (body weight,body height,body length,heart girth and cannon circumference).The MSTN mRNA expression level in different month(Birth,1 months,2 months,3 months,4 months,5 months) of muscle and fat in Altay sheep,Turpan Black sheep,Emil White sheep,Kazakh sheep,Bashbay sheep by quantitative Real-time PCR method,using SPSS 19.0 software to analyze the correlation with growth traits.The MSTN mRNA expression levels in muscle:The MSTN gene mRNA expression levels of Altay sheep,Kazakh sheep and Bashbay sheep at birth were lower than other months;The MSTN gene mRNA expression level of Emil White sheep in 3 months was significantly lower than other months (P<0.05);The MSTN gene mRNA expression levels of Altay sheep,Turpan Black sheep were the highest in 4 months;The MSTN gene mRNA expression level of Kazakh sheep was the lowest at birth,and was the highest in 5 months.The MSTN gene mRNA expression levels in fat:The MSTN gene mRNA expression level of Emil White sheep at birth was significantly lower than other months (P<0.05); The MSTN gene mRNA expression levels of Altay sheep,Emil White sheep and Bashbay sheep were the highest in 5 months,the MSTN gene mRNA expression level of Bashbay sheep in 5 months was significantly higher than other months (P<0.05);The MSTN gene mRNA expression level of Kazakh sheep was the highest in 2 month,it was significantly higher than 5 months (P<0.05).Correlation analysis revealed that the MSTN gene mRNA expression levels were mostly negatively correlated with growth traits.The MSTN gene mRNA expression levels in muscle and fat of Altay sheep were all negatively correlated with growth traits;The MSTN gene mRNA expression levels in muscle of Turpan Black sheep were negative correlated with body length and body height,others were positively;The MSTN gene mRNA expression levels in muscle of Emil White sheep were positive correlated with heart girth and cannon circumference;The MSTN gene mRNA expression levels in fat were positive correlated with body length,others were negatively correlation;The MSTN gene mRNA expression levels in muscle and fat of Kazakh sheep were positive correlated with body length,others were negatively correlation;The MSTN gene mRNA expression levels in muscle of Bashbay sheep were positive correlated with body length and cannon circumference,others were negatively correlation.The MSTN gene mRNA expression level was discrepancy in different month of different varieties,and was no fixed expression pattern;The MSTN gene mRNA expression levels were positively correlated with the part of the body size.The MSTN gene mRNA expression levels might have a direct relationship with the growth traits and bone growth.

Key words: MSTN gene mRNA; quantitative Real-time PCR; correlation analysis

中图分类号:

S813.3

姚力丹, 祖玲玲, 马晓燕, 依明·苏来曼, 决肯·阿尼瓦什. 新疆5个品种羊不同月龄MSTN基因mRNA表达水平及其与生长性状相关性分析[J]. , 2016, 43(2): 462-470.

YAO Li-dan, ZU Ling-ling, MA Xiao-yan, Yiming Sulaiman, Jueken Aniwashen. Different Months of MSTN Gene mRNA Expression Levels and their Correlation with Growth Traits in Five Xinjiang Local Sheep[J]. , 2016, 43(2): 462-470.

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