Fig. 2From: Horizontal gene transfer in bdelloid rotifers is ancient, ongoing and more frequent in species from desiccating habitatsDated phylogeny of Rotaria species and A. ricciae reconstructed from cox1, 18S and 16 nuclear genes. The tree was calibrated using published substitution rates of cox1 and 18S (see Methods). All clades have posterior probability support values = 1.0. The number of MCL orthologs unique to each species and clade are shown above branchesBack to article page