Association of CAST2, HSP90AA1, DNAJA1 and HSPB1 genes with meat tenderness in Nellore cattle

Malheiros, Jessica Moraes [UNESP]; Elena Enriquez-Valencia, Cruz; Silva Duran, Bruno Oliveira da [UNESP]; Paula, Tassiana Gutierrez de [UNESP]; Curi, Rogerio Abdallah [UNESP]; Vasconcelos Silva, Josineudson Augusto I. I. de [UNESP]; Dal-Pai-Silva, Maeli [UNESP]; Oliveira, Henrique Nunes de [UNESP]; Loyola Chardulo, Luis Artur [UNESP]

Association of CAST2, HSP90AA1, DNAJA1 and HSPB1 genes with meat tenderness in Nellore cattle

Arquivos

WOS000425198300007.pdf (223.64 KB)

Data

2018-04-01

Autores

Malheiros, Jessica Moraes

Elena Enriquez-Valencia, Cruz

Silva Duran, Bruno Oliveira da

Paula, Tassiana Gutierrez de

Curi, Rogerio Abdallah

Vasconcelos Silva, Josineudson Augusto I. I. de

Dal-Pai-Silva, Maeli

Oliveira, Henrique Nunes de

Loyola Chardulo, Luis Artur

Editor

Elsevier B.V.

Tipo

Artigo

Direito de acesso

Acesso aberto

Resumo

The objective of this study was to evaluate the association of expression of CAPN1, CAPN2, CAST, HSP90AA1, DNAJA1 and HSPB1 genes with meat tenderness in Nellore cattle. Three experimental groups were selected by shear force (SF): moderately tender (SF = 34.3 +/- 5.8 N), moderately tough (SF = 56.8 +/- 7.8 N), and very tough meat (SF = 80.4 +/- 15 N). Gene expression was evaluated by real-time PCR. Expression of the CAPN1, CAPN2, CAST and CAST1 genes did not differ between groups. Expression of the CAST2 was up-regulated (P < 0.05) in the moderately tough and very tough meat groups. Down-regulation of the HSP90AA1, DNAJA1 and HSPB1 genes (P < 0.05) was observed in the moderately tender meat group. The present results suggest that meat tenderness in Nellore cattle does not directly depend on the expression of the CAPN1 and CAPN2 genes, but is associated with the expression of other genes such as CAST2, HSP90AA1, DNAJA1 and HSPB1.