1. DNA methylation may affect beef tenderness through signal transduction in Bos indicus
- Author
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Marcela Maria de Souza, Simone Cristina Méo Niciura, Marina Ibelli Pereira Rocha, Zhangyuan Pan, Huaijun Zhou, Jennifer Jessica Bruscadin, Wellison Jarles da Silva Diniz, Juliana Afonso, Priscila Silva Neubern de Oliveira, Gerson B. Mourão, Adhemar Zerlotini, Luiz Lehmann Coutinho, James E. Koltes, Luciana Correia de Almeida Regitano, MARCELA MARIA DE SOUZA, IOWA STATE UNIVERSITY, SIMONE CRISTINA MEO NICIURA, CPPSE, MARINA IBELLI PEREIRA ROCHA, UFSCAR, ZHANGYUAN PAN, UNIVERSITY OF CALIFORNIA, HUAIJUN ZHOU, UNIVERSITY OF CALIFORNIA, JENNIFER JESSICA BRUSCADIN, UFSCAR, WELLISON JARLES DA SILVA DINIZ, AUBURN UNIVERSITY, JULIANA AFONSO, PRISCILA SILVA NEUBERN DE OLIVEIRA, UFSCAR, GERSON B. MOURÃO, ESALQ/USP, ADHEMAR ZERLOTINI NETO, CNPTIA, LUIZ LEHMANN COUTINHO, ESALQ/USP, JAMES E. KOLTES, IOWA STATE UNIVERSITY, and LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE.
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musculoskeletal diseases ,Meat ,1.1 Normal biological development and functioning ,Metilação ,Methylation ,GNAS ,Epigenome ,Underpinning research ,Epigenoma ,Músculo de nelore ,Shear force ,Genetics ,Animals ,Muscle, Skeletal ,Molecular Biology ,EBF3 ,Bos Taurus ,RRBS ,Bos Indicus ,Músculo ,DNA methylation ,Nelore ,Skeletal ,DNA Methylation ,Muscle ,CpG Islands ,Força de cisalhamento ,Cattle ,TRANSDUÇÃO DE SINAL CELULAR ,Signal Transduction ,Biotechnology - Abstract
Background Beef tenderness is a complex trait of economic importance for the beef industry. Understanding the epigenetic mechanisms underlying this trait may help improve the accuracy of breeding programs. However, little is known about epigenetic effects on Bos taurus muscle and their implications in tenderness, and no studies have been conducted in Bos indicus. Results Comparing methylation profile of Bos indicus skeletal muscle with contrasting beef tenderness at 14 days after slaughter, we identified differentially methylated cytosines and regions associated with this trait. Interestingly, muscle that became tender beef had higher levels of hypermethylation compared to the tough group. Enrichment analysis of predicted target genes suggested that differences in methylation between tender and tough beef may affect signal transduction pathways, among which G protein signaling was a key pathway. In addition, different methylation levels were found associated with expression levels of GNAS, PDE4B, EPCAM and EBF3 genes. The differentially methylated elements correlated with EBF3 and GNAS genes overlapped CpG islands and regulatory elements. GNAS, a complex imprinted gene, has a key role on G protein signaling pathways. Moreover, both G protein signaling pathway and the EBF3 gene regulate muscle homeostasis, relaxation, and muscle cell-specificity. Conclusions We present differentially methylated loci that may be of interest to decipher the epigenetic mechanisms affecting tenderness. Supported by the previous knowledge about regulatory elements and gene function, the methylation data suggests EBF3 and GNAS as potential candidate genes and G protein signaling as potential candidate pathway associated with beef tenderness via methylation.
- Published
- 2022