MYLPF基因在肉牛肌肉生长过程中的功能研究

doi:10.16431/j.cnki.1671-7236.2017.11.018

Abstract

Abstract:

This study was aimed to investigate the expression level of myosin light chain,phosphorylatable,fast skeletal muscle (MYLPF) gene in the tissues of Black cattle, and its expression level in the longissimus dorsi muscle of Black cattle and Luxi cattle, and to lay the foundation for the study of its relationship with muscle growth and development. The MYLPF gene expression level in 10 tissues of longissimus dorsi, heart, lung, liver and spleen and so on were detected by Real-time quantitative PCR, and then the changes of MYLPF gene expression level in longissimus dorsi of Black cattle and Luxi cattle at 2, 6, 10 and 12 months of age were studied. The results showed that MYLPF gene was highly expressed in the longissimus dorsi, lowly expressed in the heart, and the other tissues were almost not expressed. The MYLPF gene expression level in the longissimus dorsi was high in 2, 6, 10 and 12 months, with the increase of age,the MYLPF gene expression level decreased gradually, the expression level of 2 months of age was the highest, which was extremely significantly higher than that of the other three periods (P<0.01). The MYLPF gene expression level in the longissimus dorsi of Black cattle was higher than that of Luxi cattle in four period, which in 10 months of age were extremely significantly different (P<0.01), 2 and 12 months of age had significant difference (P<0.05), the difference in 6 months of age was not significant (P>0.05). The results suggested that MYLPF gene in the longissimus dorsi might play a regulatory role in the growth and development of skeletal muscle, which might provide a reference for studying the mechanism of growth and development of skeletal muscle and the molecular mechanism of muscle growth.

Key words: Black cattle; Luxi cattle; MYLPF gene; longissimus dorsi

CLC Number:

S823.9⁺2

LIU Rui-li, KANG Xiao-chen, WU Lei, YUAN Wei, DONG Ya-juan. Study on the Function of MYLPF Gene of Muscle Growth in Cattle[J]. , 2017, 44(11): 3236-3242.

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Study on the Function of MYLPF Gene of Muscle Growth in Cattle

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