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The molecular characterization and associations of porcine cardiomyopathy asssociated 5 (CMYA5) gene with carcass trait and meat quality

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Abstract

The cardiomyopathy associated 5 (CMYA5) gene was also called TRIM76, which was belonged to the tripartite motif super family of proteins (TRIM). It was a direct transcriptional target for MEF2A and it played an important role in myofibrillogenesis. In the present study, a 12056 bp cDNA sequence of the porcine CMYA5 gene was obtained by RT-PCR. The sequence encoded a large protein consisting of 4003 amino acids and the carboxyl terminus of the predicted CMYA5 protein comprised of a B-box coiled-coil, two fibronectin type III (FN3) repeats, and SPRY domains. The porcine CMYA5 gene was assigned to chromosome 2q21–24 by using the radiation hybrid (IMpRH) panel, and it was significantly linked to microsatellite Sw1602 with LOD scores of 6.74. Semi-quantitative RT–PCR revealed that the porcine CMYA5 gene was broadly expressed in all seven tissues(heart, liver, spleen, lung, kidney, skeletal muscle and adipose)harvested from different developmental stages(new born, five weeks and adult tongcheng pigs), with a high level in heart and skeletal muscle. One SNP (A7189C), leading to the amino acid alteration from the Ile residue to the Leu residue, was found and detected by BspTI PCR-restriction fragment length polymorphism. The association analysis revealed that the substitution of A7189C had significant associations with the percentage of ham (p < 0.05), water loss (p < 0.01) and intramuscular fat (p < 0.05). These results provide the evidence that the porcine CMYA5 gene can act as a potential candidate gene affecting pig meat quality.

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Acknowledgements

We thank Dr Martine Yerle of INRA, France, for providing the RH panel. This research was supported by National Natural Science Foundation of China (30771536) and National High Science and Technology Foundation of China (2007AA10Z168).

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Authors and Affiliations

  1. Lab of Molecular Biology and Animal Breeding, Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction of Ministry of Education & Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, People’s Republic of China

    Xiaoling Xu, Xuewen Xu, Qin Yin, Ling Sun, Bang Liu & Yanan Wang

  2. Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, People’s Republic of China

    Xiaoling Xu

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  1. Xiaoling Xu
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  2. Xuewen Xu
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  3. Qin Yin
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  4. Ling Sun
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  5. Bang Liu
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  6. Yanan Wang
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Correspondence to Bang Liu.

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Xu, X., Xu, X., Yin, Q. et al. The molecular characterization and associations of porcine cardiomyopathy asssociated 5 (CMYA5) gene with carcass trait and meat quality. Mol Biol Rep 38, 2085–2090 (2011). https://doi.org/10.1007/s11033-010-0334-5

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  • DOI: https://doi.org/10.1007/s11033-010-0334-5

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