The "good genes" hypothesis for the evolution of male secondary sexual traits poses that female preferences for such traits are driven by indirect genetic benefits. However, support for the hypothesis remains ambiguous, and, in particular, the genetic basis for the benefits has rarely been investigated. Here, we use semi-natural populations of Trinidadian guppies to investigate whether sexually selected traits (orange, black and iridescent colouration, gonopodium length and body size) predict fitness measured as the number of grandoffspring, a metric that integrates across fitness components and sexes. Furthermore, we tested whether two potential sources of genetic benefits – major histocompatibility complex (MHC) genotypes and multilocus h...
Because selection is often sex-dependent, alleles can have positive effects on fitness in one sex an...
This is the author accepted manuscript. The final version is available from Nature Publishing Group ...
In populations with male mate-choice copying, males may mitigate their risk of sexual competition by...
The good-genes-as-heterozygosity hypothesis predicts that more elaborate male sexual ornaments are a...
Heterozygosity-fitness correlations (HFCs) have been examined in a wide diversity of contexts, and t...
Sexual selection is often prevented during captive breeding in order to maximize effective populatio...
[Extract] Indirect selection of female mating preferences may result from a genetic association betw...
The role that genotype-by-environment interactions (GEIs) play in sexual selection has only recently...
Males from different populations of the same species often differ in their sexually selected traits....
Evolutionary analyses of population translocations (experimental or accidental) have been important ...
How genetic variation is maintained in ecologically important traits is a central question in evolut...
Progress toward local adaptation is expected to be enhanced when divergent selection is multi-dimens...
Female choice can impose persistent directional selection on male sexually selected traits, yet such...
The spectacular variability that typically characterizes male genital traits has largely been attrib...
Because selection is often sex-dependent, alleles can have positive effects on fitness in one sex an...
This is the author accepted manuscript. The final version is available from Nature Publishing Group ...
In populations with male mate-choice copying, males may mitigate their risk of sexual competition by...
The good-genes-as-heterozygosity hypothesis predicts that more elaborate male sexual ornaments are a...
Heterozygosity-fitness correlations (HFCs) have been examined in a wide diversity of contexts, and t...
Sexual selection is often prevented during captive breeding in order to maximize effective populatio...
[Extract] Indirect selection of female mating preferences may result from a genetic association betw...
The role that genotype-by-environment interactions (GEIs) play in sexual selection has only recently...
Males from different populations of the same species often differ in their sexually selected traits....
Evolutionary analyses of population translocations (experimental or accidental) have been important ...
How genetic variation is maintained in ecologically important traits is a central question in evolut...
Progress toward local adaptation is expected to be enhanced when divergent selection is multi-dimens...
Female choice can impose persistent directional selection on male sexually selected traits, yet such...
The spectacular variability that typically characterizes male genital traits has largely been attrib...
Because selection is often sex-dependent, alleles can have positive effects on fitness in one sex an...
This is the author accepted manuscript. The final version is available from Nature Publishing Group ...
In populations with male mate-choice copying, males may mitigate their risk of sexual competition by...