


Branch length reflects the relative rate of cognate replacement as suggested by MrBayes. Bayesian posterior probabilities are shown near the nodes (not shown for stable nodes with P ≥ 0.95). Consensus phylogenetic tree of the Balto-Slavic lects produced by the Bayesian MCMC method from the binary matrix in the MrBayes software.

Branch length reflects the relative rate of cognate replacement as suggested by SplitsTree4. Bootstrap values are shown near the nodes (not shown for stable nodes with bootstrap value ≥ 95%). Phylogenetic tree of the Balto-Slavic lects produced by the UPGMA method from the binary matrix in the SplitsTree4 software. The BioNJ method yields the same topology. Phylogenetic tree of the Balto-Slavic lects produced by the NJ method from the binary matrix in the SplitsTree4 software. Dated phylogenetic tree of the Balto-Slavic lects produced by the StarlingNJ method from the multistate matrix (binary nodes only). Geographical distribution of extant Slavic and East Baltic languages and dialects used in the study. S2 File: (Linguistics: Datasets Methods Results). Frequencies of the NRY haplogroups in non-Balto-Slavic populations of Europe. Populations used in whole-genome SNP analyses. Frequencies of NRY haplogroups in 29 Balto-Slavic populations presented here for the first time. Frequencies of the NRY haplogroups in Balto-Slavic populations. Results for Mantel tests on genetic, lexicostatistical and geographic distances. Matrices of geographic (a), lexicostatistical (b) and genetic (c,d,e) distances between Balto-Slavic populations used in Mantel Tests. Analysis of molecular variance (AMOVA) in Balto-Slavic populations. Groups of populations used in IBD analysis. Predicting the country affiliation for 53 Balto-Slavic populations from their Y-chromosomal composition. Matrix of pairwise Nei distances (D Nei) between Balto-Slavic populations based on mtDNA data. Frequencies of the mtDNA haplogroups in Balto-Slavic and some other European populations. Matrix of mean population pairwise F ST for Balto-Slavic populations calculated from autosomal SNP data. Matrix of pairwise Nei distances (D Nei) between Balto-Slavic populations based on Y-chromosome data.
