Susan E. Johnston

TL;DR: This work identifies a large effect locus controlling age at maturity in Atlantic salmon, an important fitness trait in which selection favours earlier maturation in males than females, and shows it is a clear example of sex-dependent dominance that reduces intralocus sexual conflict and maintains adaptive variation in wild populations.

TL;DR: It is found that an allele conferring larger horns, Ho+, is associated with higher reproductive success, whereas a smaller horn allele, HoP, confers increased survival, resulting in a net effect of overdominance for fitness at RXFP2.

TL;DR: The patterns of, and processes governing recombination in eukaryotes are explored, and how variation in rate and distribution relates to genome architecture, genetic and epigenetic mechanisms, sex, environmental perturbations and variable selective pressures is discussed.

TL;DR: Evidence from additional SNPs in and around RXFP2 supports a new model of horn‐type inheritance in Soay sheep, and for the first time, sheep with the same horn phenotype but different underlying genotypes can be identified.

TL;DR: Analysis of pedigree and high-density SNP information in a wild population of Soay sheep showed that haplotypes associated with recombination rates are both old and globally distributed, suggesting a common genetic architecture of recombination rate variation in mammals.