›› 2016, Vol. 43 ›› Issue (2): 462-470.doi: 10.16431/j.cnki.1671-7236.2016.02.026

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Different Months of MSTN Gene mRNA Expression Levels and their Correlation with Growth Traits in Five Xinjiang Local Sheep

YAO Li-dan, ZU Ling-ling, MA Xiao-yan, Yiming Sulaiman, Jueken Aniwashen   

  1. College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2015-08-24 Online:2016-02-20 Published:2016-03-02

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

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