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Multi-locus phylogeny of individual samples, using only X-linked markers. The tree is rooted with D. putrida and includes the sister species D. testacea. Branches with a posterior probability support higher than 0.5 are indicated. Branch tips are marked with population of origin as indicated with the state or province abbreviation and X-chromosome type. Blue text denotes outgroups, red is SR, and black is ST.
