mtDNA_alignments

The zip file contains the three mtDNA alignments used in this study. "mitogenomes.fas" is the alignment of the mitogenomes of the 81 individuals included in this study together with an outgroup. Control Region was removed from the alignment. Based on it, two other alignments, "alignment_with_1994-cytb.fas" and "alignment_with_2008-cytb.fas", were created by incorporating the data from Orti et al. (1994) and Makinen & Merila (2008), respectively

SNPs_subset

A VCF file containing a random subset (1%) of all SNPs discovered in this study. This file was used for conducting PCA and calculating nucleotide diversity

Supplementary 2 from Mice as stowaways? Colonization history of Danish striped field mice

Species from the steppe region of Eastern Europe likely colonized Northwestern Europe in connection with agriculture after 6500 BP. The striped field mouse (<i>Apodemus agrarius</i> Pallas, 1783), is a steppe-derived species often found in human crops, that is common on the southern Danish islands of Lolland and Falster, which have been isolated from mainland Europe because approximately10 300–8000 BP. Thus, this species could have been brought in with humans in connection with agriculture, or it could be an earlier natural invader. We sequenced 86 full mitochondrial genomes from the Northwestern range of the striped field mouse, analysed phylogenetic relationships and estimated divergence time. The results supported human-induced colonization of Denmark in the Subatlantic or Subboreal period. A newly discovered population from Central Jutland in Denmark diverged from Falster approximately 100–670 years ago, again favouring human introduction. One individual from Sweden turned out to be a recent introduction from Central Jutland

Supplementary 8 from Mice as stowaways? Colonization history of Danish striped field mice

Species from the steppe region of Eastern Europe likely colonized Northwestern Europe in connection with agriculture after 6500 BP. The striped field mouse (<i>Apodemus agrarius</i> Pallas, 1783), is a steppe-derived species often found in human crops, that is common on the southern Danish islands of Lolland and Falster, which have been isolated from mainland Europe because approximately10 300–8000 BP. Thus, this species could have been brought in with humans in connection with agriculture, or it could be an earlier natural invader. We sequenced 86 full mitochondrial genomes from the Northwestern range of the striped field mouse, analysed phylogenetic relationships and estimated divergence time. The results supported human-induced colonization of Denmark in the Subatlantic or Subboreal period. A newly discovered population from Central Jutland in Denmark diverged from Falster approximately 100–670 years ago, again favouring human introduction. One individual from Sweden turned out to be a recent introduction from Central Jutland