"This file contains the genotypes for 26 microsatellite loci and 1385 individuals collected in 25 populations of blue tit (Cyanistes caeruleus)"

Data file contains genotyping of 1385 individuals at 26 microsatellite loci classified in two groups by considering whether they are located into genomic regions that are actively (TL; 12 loci: Cca-Tgu28, PIJ14, Tg05-053, Tg05-046, CcaTgu15, Tg13-017, CcaTgu19, CcaTgu11, CcaTgu8, Tgu07, CcaTgu14, CcaTgu7) or not (NTL; 14 loci: PK11, Pca3, Pca9, Pocc1, Pocc6, Pat-mp2-43, PK12, Ase18, Pdo5, Pca7, Pca4, Pca2, Mcyμ4, Pca8) transcribed to RNA. These individuals were captured in 25 populations located in fragmented woodlands scattered within an area of 1200 km2 in Montes de Toledo, central of Spain.