Data/hora: 25/06/2024 00:09:47

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 16/06/2014
Data da última atualização: | 28/03/2023
Autoria: | CARVALHO, M. E.; GASPARIN, G.; POLETI, M. D.; ROSA, A. F.; BALIEIRO, J. C. C.; LABATE, C. A.; NASSU, R. T.; TULLIO, R. R.; REGITANO, L. C. de A.; MOURÃO, G. B.; COUTINHO, L. L.
Afiliação: | MINOS ESPERÂNDIO CARVALHO, ESALQ/UNIVERSIDADE DE SÃO PAULO/ PIRACICABA, SP; GUSTAVO GASPARIN, ESALQ/UNIVERSIDADE DE SÃO PAULO/PIRACICABA; MIRELE DAIANA POLETI, University of São Paulo; ALESSANDRA FERNANDES ROSA, University of São Paulo; JÚLIO CESAR CARVALHO BALIEIRO, University of São Paulo; CARLOS ALBERTO LABATE, University of São Paulo; RENATA TIEKO NASSU, CPPSE; RYMER RAMIZ TULLIO, CPPSE; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; GERSON BARRETO MOURÃO, University of São Paulo; LUIZ LEHMANN COUTINHO, ESALQ/PIRACICABA.
Título: | Heat shock and structural proteins associated with meat tenderness in Nellore beef cattle, a Bos indicus breed.
Ano de publicação: | 2014
Fonte/Imprenta: | Meat Science, v. 96, n. 3, p. 1318-1324, mar. 2014.
DOI: | 10.1016/j.meatsci.2013.11.014
Idioma: | Inglês
Conteúdo: | Nellore beef cattle, a Bos indicus (Zebu) breed, is well adapted to tropical conditions and has allowed Brazil to become one of the largest producers of red meat. Nevertheless, B. indicus breeds are reported to have less tender meat than Bos taurus. This study was designed to identify genes associated with meat tenderness and thus provides important information for breeding programs. A group of 138 animals was evaluated for longissimus thoracis muscle shear force (SF). Animals with the highest and lowest SF values (six animals each) were then selected for protein abundance studies. Samples were subjected to two-dimensional gel electrophoresis (2-DE) followed by peptide sequencing through mass spectrometry (MS) to identify differentially expressed proteins associated with SF values. Seventeen differentially expressed spots were observed (p<0.05) between the two groups. The 13 proteins identified included structural proteins (alpha actin-1, MLC1, MLC3, MLC2F and tropomyosin), related to cell organization (HSPB1 and HSP70), metabolism (beta-LG, ACBD6 and Complex III subunit I) and some uncharacterized proteins. Results confirm the existence of differentially expressed proteins associated with SF, which can lead to a better understanding of mechanisms involved in meat tenderness.
Palavras-Chave: | Shear force; Tenderness.
Thesagro: | Bos Indicus.
Thesaurus Nal: | proteomics.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (22498-1) - UPC - AP - DD - PROCI-2014.00032 - CAR - 2014.00032 - DIS