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
Article
in English
| 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.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Oncorhynchus mykiss
/
Quantitative Trait Loci
/
Genetics, Population
Type of study:
Risk factors
Limits:
Animals
Language:
English
Journal:
Genet. mol. biol
Journal subject:
Genetics
Year:
2010
Type:
Article
/
Project document
Affiliation country:
Chile
Institution/Affiliation country:
Piscicola Huililco Ltda/CL
/
Universidad de Chile/CL
/
Universidad de Los Lagos/CL
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