Analysis of polymorphisms in candidate’s genes for meat quality in Lidia cattle
2016
Pelayo García, Rocío | Valera Córdoba, María Mercedes | Avilés, C. | Universidad de Sevilla. Departamento de Ciencias Agroforestales | Universidad de Sevilla. AGR273: Nuevas Tecnologías de Mejora Animal y de Sus Sistemas Productivos
The aim of this paper was to analyze the segregation of some polymorphisms in three genes ( CAPN1 , CAST and DGAT1 ) re- lated to meat quality in the Lidia cattle breed and some of its main lineages. To that effect, 119 individuals from the Lidia breed were analyzed. Although the association between the polymorphisms and the phenotype has never been demonstrated in this breed, the absence of fixed genotypes for these polymorphisms in the studied population makes the Lidia cattle a good candidate to de- velop selection objectives. The clear differentiation among lineages for most of the genes studied reinforces the high reproductive isolation presented in the Lidia cattle as revealed by previous studies on the structure of the population within the Lidia breed using microsatellite markers. Considering both issues in the design of breeding schemes will be necessary to save the lineages and not to lose this valuable genetic resource. Finally, it would be necessary to carry out an in depth search for new polymorphisms in genes associated with meat quality and to perform needed association analyses between the SNPs segregating in Lidia cattle and traits of economic interest
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