Genomic and phenotypic beef quality indicators of Charolais cattle in México

Genomic and phenotypic beef quality indicators of Charolais cattle in México

Tenderness and marbling are polygenic traits used as indicators of good meat quality. Among different genes related to meat quality, µ-calpaine (CAPN1) and thyroglobulin (TG5) have been specifically linked to tenderness and marbling, respectively. Objectives: to estimate the allelic and genotypic fr...

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Veröffentlicht in:Revista Colombiana de Ciencias pecuarias 2012, Vol.25 (2), p.210-219
Hauptverfasser: Muñoz Mejía, Carmen Yazmín, Rosa Reyna, Xochitl Fabiola de la, Martínez-González, Juan Carlos, López Bustamante, Luis Arístides, Arellano Vera, Williams, Parra Bracamonte, Gaspar Manuel, Sifuentes Rincón, Ana María
Format: Artikel
Sprache:eng ; spa
Schlagworte:
ACRS
calpain
calpaina
calpaína
charolais cattle
gado charolês
ganado charolais
PCR
RFLP
thyroglobulin
tiroglobulina
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Zusammenfassung:Tenderness and marbling are polygenic traits used as indicators of good meat quality. Among different genes related to meat quality, µ-calpaine (CAPN1) and thyroglobulin (TG5) have been specifically linked to tenderness and marbling, respectively. Objectives: to estimate the allelic and genotypic frequencies of markers in CAPN1 and TG5 genes, and relate their presence to beef carcass quality. Methods: CAPN1 and TG5 polymorphisms were identified by PCR-ACRS and PCR-RFLP, respectively, validating their putative effects on beef carcass using real time ultrasound in Charolais candidate sires (n=80). Results: computed genotypic frequencies in CAP4751 and TG5 showed Hardy-Weinberg equilibrium, while CAP316 expressed deviation from equilibrium. Association analysis indicated a significant effect of CAP4751 on rib eye area (REA) (p
ISSN:0120-0690