Maximum likelihood topology of the Ycl1 and Ycl2 HK sequences used in this study. The tree is arbitrarily rooted with the Ycl2 cluster. The species and the locus tags of the corresponding genes are indicated. The brackets indicate the clusters of orthologs. Support of nodes is indicated as in Figure 2.
Zúñiga et al. BMC Evolutionary Biology 2011 11:34 doi:10.1186/1471-2148-11-34