10.5061/DRYAD.P6DF410
Reid, Jane M.
University of Aberdeen
Wolak, Matthew E.
University of Aberdeen
Auburn University
Data from: Is there indirect selection on female extra-pair reproduction
through cross-sex genetic correlations with male reproductive fitness?
Dryad
dataset
2018
Mating Systems
Melospiza melodia
Holocene
2018-05-01T01:15:49Z
2018-05-01T01:15:49Z
en
https://doi.org/10.1002/evl3.56
242392 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
One key hypothesis explaining the evolution and persistence of polyandry,
and resulting female extra-pair reproduction in socially monogamous
systems, is that female propensity for extra-pair reproduction is
positively genetically correlated with male reproductive fitness and
consequently experiences positive cross-sex indirect selection. However,
key genetic correlations have rarely been estimated, especially in
free-living populations experiencing natural (co)variation in reproductive
strategies and fitness. We used long-term life-history and pedigree data
from song sparrows (Melospiza melodia) to estimate the cross-sex genetic
correlation between female propensity for extra-pair reproduction and
adult male lifetime reproductive success, and thereby test a key
hypothesis regarding mating system evolution. There was substantial
additive genetic variance in both traits, providing substantial potential
for indirect selection on female reproductive strategy. However, the
cross-sex genetic correlation was estimated to be close to zero. Such
small correlations might arise because male reproductive success achieved
through extra-pair paternity was strongly positively genetically
correlated with success achieved through within-pair paternity, implying
that the same successful males commonly sire offspring produced by
polyandrous and monogamous females. Cross-sex indirect selection may
consequently have limited capacity to drive evolution of female extra-pair
reproduction, or hence underlying polyandry, in systems where multiple
routes to paternity success exist.
Phenotypic data for analysis of female EPR and male LRSPhenotypic data for
analysis of female extra-pair reproduction and male lifetime reproductive
successlrs.data.Dryad.Final.txtPhenotypic data for analysis of female EPR
and male ARSPhenotypic data for analysis of female extra-pair reproduction
and male annual reproductive successars.data.Dryad.Final.txtInverse A data
for analysis of female EPR and male LRSInverse A data for animal model
analysis of female extra-pair reproduction and male lifetime reproductive
successlrs.Ainv.Dryad.txtInverse A data for analysis of female EPR and
male ARSInverse A data for animal model analysis of female extra-pair
reproduction and male annual reproductive successars.Ainv.Dryad.txt
Canada
British Columbia