The microRNA, miR-29c, participates in muscle development through targeting the YY1 gene and is associated with postmortem muscle pH in pigs

Weiya ZHANG, Wei WEI, Yuanyuan ZHAO, Shuhong ZHAO, Xinyun LI

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Front. Agr. Sci. Eng. ›› 2015, Vol. 2 ›› Issue (4) : 311-317. DOI: 10.15302/J-FASE-2015075
RESEARCH ARTICLE
RESEARCH ARTICLE

The microRNA, miR-29c, participates in muscle development through targeting the YY1 gene and is associated with postmortem muscle pH in pigs

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Abstract

Previous studies indicated that miR-29c is important for muscle development in mice and human, but its role in pigs is unknown. In this study, we detected the expression of miR-29c in Meishan longissimus lumborum (LL) muscle. The results showed that miR-29c was gradually upregulated during development of skeletal muscle in pig. Moreover, the expression of YY1 and Akt3 genes, which were confirmed to be targeted by miR-29c in mice, was decreased along with muscle development. Furthermore, the expression level of miR-29c was significantly higher in adult Meishan pigs than Large White pigs, while the expression of YY1 and Akt3 genes was significantly lower in Meishan pigs. These results indicated that the expression pattern of miR-29c was opposite to that of YY1 and Akt3 genes in pigs. Also, the luciferase assay indicated that miR-29s can target the YY1 gene in pigs. In addition, we identified a T to C mutation in the primary transcript of miR-29c, which was associated with the postmortem muscle pH in pigs. Based on these results, we concluded that miR-29c is also important in skeletal muscle development of pigs.

Keywords

pig / miR-29c / skeletal muscle / expression / SNP

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Weiya ZHANG, Wei WEI, Yuanyuan ZHAO, Shuhong ZHAO, Xinyun LI. The microRNA, miR-29c, participates in muscle development through targeting the YY1 gene and is associated with postmortem muscle pH in pigs. Front. Agr. Sci. Eng., 2015, 2(4): 311‒317 https://doi.org/10.15302/J-FASE-2015075

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Acknowledgements

This work was supported by the National Outstanding Youth Foundation of NSFC (31025026), National Basic Research Program of China (2012CB124702), and New Breed Creation Using Transgenic Methods (2014ZX0800950B).
The online version of this article at http://dx.doi.org/10.15302/J-FASE-2015075 contains supplementary material (Appendix A).
Weiya Zhang, Wei Wei, Yuanyuan Zhao, Shuhong Zhao, and Xinyun Li declare that they have no conflict of interest or financial conflicts to disclose.
All applicable institutional and national guidelines for the care and use of animals were followed.

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