DOI: 10.5061/dryad.jp8r1
title: Data from: On the origin of the Norwegian lemming

description: The Pleistocene glacial cycles resulted in significant changes in species
 distributions, and it has been discussed whether this caused increased
 rates of population divergence and speciation. One species that is likely
 to have evolved during the Pleistocene is the Norwegian lemming (Lemmus
 lemmus). However, the origin of this species, both in terms of when and
 from what ancestral taxon it evolved, has been difficult to ascertain.
 Here, we use ancient DNA recovered from lemming remains from a series of
 Late Pleistocene and Holocene sites to explore the species'
 evolutionary history. The results revealed considerable genetic
 differentiation between glacial and contemporary samples. Moreover, the
 analyses provided strong support for a divergence time prior to the Last
 Glacial Maximum (LGM), therefore likely ruling out a postglacial
 colonization of Scandinavia. Consequently, it appears that the Norwegian
 lemming evolved from a small population that survived the LGM in an
 ice-free Scandinavian refugium.
description: Lemmus sequence
 alignment for the partial dataset (172 bp)Combined mitochondrial
 data. Control region: position 1-96; Cytochrome b: position
 97-172.Lemmus alignment partial
 dataset.fstLemmus sequence
 alignment for the complete dataset (520 bp)Combined mitochondrial
 data. Control region: position 1-168; Cytochrome b: position
 169-520.Lemmus alignment complete
 dataset.fstLemmus.partial.11.7.inputBEASTInput file to BEAST, for analysing the partial dataset using a mutation rate of 11.7 % per million yearsLemmus.partial.11.7.result.BEASTTree file obtained from BEAST and summarised in TreeAnnotator. For the partial dataset using a mutation rate of 11.7 % per million yearsLemmus partial_11,7_BEAST_outputTreeAnnotatorLemmus.partial.30.inputBEASTInput file to BEAST, for analysing the partial dataset using a mutation rate of 30 % per million yearsLemmus.partial.30.result.BEASTTree file obtained from BEAST and summarised in TreeAnnotator. For the partial dataset using a mutation rate of 30 % per million yearsLemmus partial_30_BEAST_outputTreeAnnotatorLemmus.partial.50.inputBEASTInput file to BEAST, for analysing the partial dataset using a mutation rate of 50 % per million yearsLemmus.partial.50.result.BEASTTree file obtained from BEAST and summarised in TreeAnnotator. For the partial dataset using a mutation rate of 50 % per million yearsLemmus partial_50_BEAST_outputTreeAnnotatorLemmus.complete.8.9.inputBEASTInput file to BEAST, for analysing the complete dataset using a mutation rate of 8.9 % per million yearsLemmus.complete.8.9.result.BEASTTree file obtained from BEAST and summarised in TreeAnnotator. For the complete dataset using a mutation rate of 8.9 % per million yearsLemmus complete_8,9_BEAST_outputTreeAnnotatorLemmus.complete.30.inputBEASTInput file to BEAST, for analysing the complete dataset using a mutation rate of 30 % per million yearsLemmus.complete.30.result.BEASTTree file obtained from BEAST and summarised in TreeAnnotator. For the complete dataset using a mutation rate of 30 % per million yearsLemmus complete_30_BEAST_outputTreeAnnotatorLemmus.complete.50.inputBEASTInput file to BEAST, for analysing the complete dataset using a mutation rate of 50 % per million yearsLemmus.complete.50.result.BEASTTree file obtained from BEAST and summarised in TreeAnnotator. For the complete dataset using a mutation rate of 50 % per million yearsLemmus partial_50_BEAST_outputTreeAnnotatorLemmus.complete dated.30.inputBEASTInput file to BEAST, for analysing the complete dataset using a mutation rate of 30 % per million years. Only including the directly dated sequences (Pleistocene & Modern)Lemmus.complete dated.30.result.BEASTTree file obtained from BEAST and summarised in TreeAnnotator. For the complete dataset using a mutation rate of 30 % per million years. Only with dated sequencesLemmus complete dated_30_BEAST_outputTreeAnnotatorLemmus.partial.inputMrBayesInput file to MrBayes for analysing the partial dataset, using Mictotus as an outgroupLemmus.partial.result.MrBayes.nex.conTree file obtained from MrBayes, for the partial dataset.Lemmus partial_MrBayes.nex.con.tre