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

Autor(es)

Malheiros, Jessica Moraes ^[1] ; Elena Enriquez-Valencia, Cruz ^[2] ; da Silva Duran, Bruno Oliveira ^[3] ; de Paula, Tassiana Gutierrez ^[3] ; Curi, Rogerio Abdallah ^[4] ; de Vasconcelos Silva, Josineudson Augusto I. I. ^[4] ; Dal-Pai-Silva, Maeli ^[3] ; de Oliveira, Henrique Nunes ^[1] ; Loyola Chardulo, Luis Artur ^[4]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Zootecnia, BR-14884900 Jaboticabal, SP - Brazil

^[2] Univ Francisco de Paula Santander Ocana, Fac Ciencias Agr & Ambiente, Dept Ciencias Pecuarias, Norte De Santander 546552 - Colombia

^[3] Univ Estadual Paulista, Dept Morfol, Inst Biociencias, BR-18618689 Botucatu, SP - Brazil

^[4] Univ Estadual Paulista, Fac Med Vet & Zootecnia, Dept Melhoramento & Nutr Anim, BR-18618000 Botucatu, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MEAT SCIENCE; v. 138, p. 49-52, APR 2018.
• Citações Web of Science: 5

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. (AU)

• Processo FAPESP: 15/13021-1 - Abordagem proteômica metalômica e de expressão de proteínas estruturais, proteolíticas e reguladoras do tecido muscular esquelético no post-mortem e suas relações com o crescimento e a maciez da carne em animais da raça Nelore (Bos indicus).
• Beneficiário: Luis Artur Loyola Chardulo
• Modalidade de apoio: Auxílio à Pesquisa - Regular