Figure 27.26. Congruence of different genes. Phylogenetic trees for two genes from 65 species of bacteria are compared. Major groups of bacteria are labeled α, β, γ, δ, ε—subgroups of proteobacteria. Cyano, cyanobacteria. High GC + Low GC, different groups of gram-positive bacteria. D/T, Deinococcus Thermus phyla. (Left) RecA protein tree; (right) ss-rRNA tree. Portions of each tree that were not well supported are collapsed into polytomies. Note that the trees of the two genes are highly similar. (Modified from Eisen J.A. J. Mol. Evol. 41: 1105–1123, Fig. 2, © 1995 Springer Science & Business Media.)

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