Genomic and phenotypic beef quality indicators of Charolais cattle in Mexico
REVISTA COLOMBIANA DE CIENCIAS PECUARIAS
Authors: Mejia, Carmen Y. Munoz; Parra Bracamonte, Gaspar M.; Sifuentes Rincon, Ana M.; Martinez Gonzalez, Juan C.; Lopez Bustamante, Luis A.; Vera, Williams A.; de la Rosa Reyna, Xochitl F.
Abstract
Tenderness and marbling are polygenic traits used as indicators of good meat quality. Among different genes related to meat quality, mu-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<0.05) and intramuscular fat (IMF) (p<0.10), while TG5 showed a significant trend on yield grade (YG). Conclusions: these results support the use of these markers for assessing traits related to meat quality, and warrant further studies to validate their use in cattle herds for breeding purposes.
Mutations in CAPN1 Cause Autosomal-Recessive Hereditary Spastic Paraplegia (vol 98, pg 1038, 2016)
AMERICAN JOURNAL OF HUMAN GENETICS
Authors: Gan-Or, Ziv; Bouslam, Naima; Birouk, Nazha; Lissouba, Alexandra; Chambers, Daniel B.; Veriepe, Julie; Androschuk, Alaura; Laurent, Sandra B.; Rochefort, Daniel; Spiegelman, Dan; Dionne-Laporte, Alexandre; Szuto, Anna; Liao, Meijiang; Figlewicz, Denise A.; Bouhouche, Ahmed; Benomar, Ali; Yahyaoui, Mohamed; Ouazzani, Reda; Yoon, Grace; Dupre, Nicolas; Suchowersky, Oksana; Bolduc, Francois V.; Parker, J. Alex; Dion, Patrick A.; Drapeau, Pierre; Rouleau, Guy A.; Bencheikh, Bouchra Ouled Amar
Abstract
COA
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