Data from: Intralocus tactical conflict: genetic correlations between fighters and sneakers of the dung beetle Onthophagus taurus

Males and females differ in their phenotypic optima for many traits, and
since the majority of genes are expressed in both sexes, some alleles can
be beneficial to one sex but harmful to the other (intralocus sexual
conflict; ISC). ISC theory has recently been extended to intrasexual
dimorphisms, where certain alleles may have opposite effects on the
fitness of males of different morphs that employ alternative reproductive
tactics (intralocus tactical conflict; ITC). Here we use a half-sib
breeding design to investigate the genetic basis for ISC and ITC in the
dung beetle Onthophagus taurus. We found positive heritabilities and
intersexual genetic correlations for almost all traits investigated. Next,
we calculated the intrasexual genetic correlation between males of
different morphs for horn length, a sexually selected trait, and compared
it to intrasexual correlations for naturally selected traits in both
sexes. Intrasexual genetic correlations did not differ significantly
between the sexes or between naturally and sexually selected traits,
failing to support the hypothesis that horns present a reduction of
intrasexual genetic correlations due to ITC. We discuss the implications
for the idea of developmental reprogramming between male morphs, and
emphasize the importance of genetic correlations as constraints for the
evolution of dimorphisms.