Journal
GENETICA
Volume 137, Issue 1, Pages 99-109Publisher
SPRINGER
DOI: 10.1007/s10709-009-9354-2
Keywords
MHC; Inbreeding depression; Outbreeding depression; Overdominance
Categories
Funding
- United States Department of Agriculture Cooperative State Research, Education, and Extension Service [2004-35205-14188]
- Purdue Research Foundation
Ask authors/readers for more resources
Salmon have provided key insights into the relative influence of natural and sexual selection on major histocompatibility complex (MHC) variation. Natural selection on salmon MHC genes has been demonstrated in pathogen studies, and there is evidence of MHC-based mate choice (sexual selection). We tested whether parental MHC genes affect survivorship of juvenile Atlantic salmon (Salmo salar) by quantifying the influence of parental genome-wide relatedness and MHC genotype on survivorship to the swim-up stage. Thirteen microsatellite loci were used to estimate the influence of genome-wide relatedness between parents on offspring survivorship and MHC genotypes were determined by sequencing part of the class II beta gene. Our results revealed no significant relationship between early offspring survivorship and genome-wide relatedness, predicted MHC heterozygosity, or MHC allelic similarity. Overall, our data are consistent with the contention that excess MHC heterozygosity in Atlantic salmon juveniles is due to sexual selection as well as differential survival of offspring due to MHC genotype.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available