Analysis of the association between spawning time QTL markers and the biannual spawning behavior in rainbow trout (Oncorhynchus mykiss)
Genet. mol. biol
;
33(3): 578-582, 2010. graf, tab
Artículo
en Inglés
| LILACS
| ID: lil-555814
ABSTRACT
The rainbow trout is a salmonid fish that occasionally exhibits broodstocks with biannual spawning behavior, a phenomenon known as a double annual reproductive cycle (DARC). Spawning time quantitative trait loci (SPT-QTLs) affect the time of the year that female rainbow trout spawn and may influence expression of the DARC trait. In this study, microsatellite markers linked and unlinked to SPT-QTLs were genotyped to investigate the underlying genetics of this trait. SPT-QTLs influenced the DARC trait since in two case-control comparisons three linked markers (OmyFGT12TUF, One3ASC and One19ASC) had significant levels of allelic frequency differentiation and marker-character association. Furthermore, alleles of One3ASC and One19ASC had significantly higher frequencies in populations that carried the DARC trait.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Oncorhynchus mykiss
/
Sitios de Carácter Cuantitativo
/
Genética de Población
Tipo de estudio:
Factores de riesgo
Límite:
Animales
Idioma:
Inglés
Revista:
Genet. mol. biol
Asunto de la revista:
Genética
Año:
2010
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Chile
Institución/País de afiliación:
Piscicola Huililco Ltda/CL
/
Universidad de Chile/CL
/
Universidad de Los Lagos/CL
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