Data files associated with the paper 1: Barson NJ, Aykanat T, Hindar K, Baranski M, Bolstad GH, Fiske P, Jacq C, Jensen AJ, Johnston SE, Karlsson S, Kent MP, Niemelä E, Nome T, Næsje TF, Orell P, Romakkaniemi A, Sægrov H, Urdal K, Erkinaro J, Lien S, Primmer CR (2015) Sex-dependent dominance at a single locus maintains variation in age at maturity in Atlantic salmon. Nature (in press). GWAS_QETN_pos: A genABEL file including the 208704 SNPs used in the GWAS analysis of NOR and TAN datasets, including information to replicate analyses. Genotype file contains SNP name, position and chromosome info. Assembly version: ICSASG_v2 Phenotype information: id: Fish id latitude: Rivers coordinate 1. longitude: Rivers coordinate 2. Year: Sampling year of fish. FWAgeC: FW Age SeaAgeC: Sea age at capture FirstSpawn: Age at first maturity MultiSpawn: Boolean, if teh captured fish has previously spawned or not. Length: Length at capture. Weight: Weight at capture. SexC: Sex of fish. FWG_scl: Scaled FWG metric FWS_scl: Scaled FWS metric SWG_scl: Scaled SWG metric RivID2: RIver ID as in extended data Table 1 GWAS_TR_pos: A genABEL file including the 167410 SNPs used in the GWAS analysis of the BAL dataset, including information to replicate analyses. Genotype file contains SNP name, position and chromosome info. Assembly version: ICSASG_v2 Phenotype information: ID: Fish id Year: Sampling year of fish. FirstSpawn: Age at first maturity