Estimation of genetic parameters for growth traits in a hatchery population of gilthead sea bream (Sparus aurata L.)

Fernandes, Tiago; Herlin, Marine; López Belluga, María Dolores; Ballón, Guillermo; Martínez, Paulino; Toro Ibañez, Miguel Angel y Fernández, J. (2017). Estimation of genetic parameters for growth traits in a hatchery population of gilthead sea bream (Sparus aurata L.). "Aquaculture International", v. 25 (n. 1); pp. 499-514. ISSN 0967-6120. https://doi.org/10.1007/s10499-016-0046-5.

Descripción

Título: Estimation of genetic parameters for growth traits in a hatchery population of gilthead sea bream (Sparus aurata L.)
Autor/es:
  • Fernandes, Tiago
  • Herlin, Marine
  • López Belluga, María Dolores
  • Ballón, Guillermo
  • Martínez, Paulino
  • Toro Ibañez, Miguel Angel
  • Fernández, J.
Tipo de Documento: Artículo
Título de Revista/Publicación: Aquaculture International
Fecha: Febrero 2017
Volumen: 25
Materias:
Escuela: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Departamento: Producción Agraria
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The gilthead sea bream (Sparus aurata L.) is one of the most important marine fish species produced in southern European countries. Over the last two decades, microsatellites have become a powerful tool for DNA studies of fish populations, making it possible to establish existing genealogical relationships between individuals and to perform reliable estimates of genetic parameters. In the present study, a total of 7959 fish (494 breeders and 7465 fry) were genotyped using two rounds of multiplex reactions with four microsatellite markers each. Offspring were assigned based on the Mendelian exclusion principles, using FAP program. Genealogical information was successfully obtained for more than 83 % of the progeny. Heritability estimates were close to 0.40 in all cases and for all considered traits. The lowest value was for the length at first age (350 ± 6 dph) and the highest for the length at the second age (500 ± 7 dph). The heritabilities for the first and the second weight were similar although somewhat higher for the second age, but not significant. The highest genetic correlations were found between weight and length at the same age and the lowest between weight and length at different ages. Based on the results of this study, it seems reasonable to expect that the implementation of a breeding program for improved growth in this population of gilthead sea bream will offer comparable performances to those achieved in other populations and species of great success in aquaculture around the world.

Más información

ID de Registro: 46098
Identificador DC: http://oa.upm.es/46098/
Identificador OAI: oai:oa.upm.es:46098
Identificador DOI: 10.1007/s10499-016-0046-5
URL Oficial: https://link.springer.com/article/10.1007/s10499-016-0046-5
Depositado por: Memoria Investigacion
Depositado el: 05 Jun 2017 15:37
Ultima Modificación: 28 Feb 2018 23:30
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