DOI: 10.5061/dryad.7hm4708
title: Data from: Rapid sex-specific evolution of age at maturity is shaped by genetic architecture in Atlantic salmon

description: Understanding the mechanisms by which populations adapt to their
 environments is a fundamental aim in biology. However, it remains
 challenging to identify the genetic basis of traits, provide evidence of
 genetic changes and quantify phenotypic responses. Age at maturity in
 Atlantic salmon represents an ideal trait to study contemporary adaptive
 evolution as it has been associated with a single locus in the vgll3
 region, and has also strongly changed in recent decades. Here, we provide
 an empirical example of contemporary adaptive evolution of a large effect
 locus driving contrasting sex-specific evolutionary responses at the
 phenotypic level. We identified an 18% decrease in the vgll3 allele
 associated with late maturity (L) in a large and diverse salmon population
 over 36 years, induced by sex-specific selection during the sea migration.
 Those genetic changes resulted in a significant evolutionary response in
 males only, due to sex-specific dominance patterns and vgll3 allelic
 effects. The vgll3 allelic and dominance effects differed greatly in a
 second population and were likely to generate different selection and
 evolutionary patterns. Our study highlights the importance of knowledge of
 genetic architecture to better understand fitness trait evolution and
 phenotypic diversity. It also emphasizes the potential role of adaptive
 evolution in the trend toward earlier maturation observed in numerous
 Atlantic salmon populations worldwide.
description: Adults
 dataData associated with the
 article: Czorlich Y., Aykanat T., Erkinaro J., Orell P. & Primmer C.R.
 (2018) Rapid sex-specific evolution of age at maturity is shaped by
 genetic architecture in Atlantic salmon. Nature Ecology & Evolution.
 Table including the genotypes of adults (row) at 190 loci and additional
 informations (e.g. spawning year, sex)Adults_data.xlsxJuveniles_dataData associated with the article: Czorlich Y., Aykanat T., Erkinaro J., Orell P. & Primmer C.R. (2018) Rapid sex-specific evolution of age at maturity is shaped by genetic architecture in Atlantic salmon. Nature Ecology & Evolution. Table including the genotypes of juveniles (row) at 190 loci and additional informations (population and sex)Drift estimated with a Wright-Fisher approximationCode used in Czorlich Y., Aykanat T., Erkinaro J., Orell P. & Primmer C.R. (2018) Rapid sex-specific evolution of age at maturity is shaped by genetic architecture in Atlantic salmon. Nature Ecology & Evolution. It estimates the expected amount of drift by using putatively neutral loci as a baseline.Drift_WF_approximation.RWright_Fisher_selection_estimateCode associated with the article: Czorlich Y., Aykanat T., Erkinaro J., Orell P. & Primmer C.R. (2018) Rapid sex-specific evolution of age at maturity is shaped by genetic architecture in Atlantic salmon. Nature Ecology & Evolution. Bayesian model to estimate selection.Difference in allele frequency between sexes due to sex-specific dominance patternCode associated with the article: Czorlich Y., Aykanat T., Erkinaro J., Orell P. & Primmer C.R. (2018) Rapid sex-specific evolution of age at maturity is shaped by genetic architecture in Atlantic salmon. Nature Ecology & Evolution. Simulations to determine how sex-specific dominance pattern may influence sex-specific allele frequency under selection.Difference_sexes_dominance_pattern.R