Figure 6

ML trees made with concatenated amino acid sequences of (a) all 51 ribosomal proteins (6,754 amino acid positions), (b) the AP proteins ApcA-B-C-D-F (710 amino acid positions), (c) the PC proteins CpcA-B or RpcA-B (332 amino acid positions), (d) the PEI proteins CpeA-B-Y-Z (943 amino acid positions) and (e) the PEII proteins MpeA-B-Y and Unk7-8-9 (1,007 amino acid positions). The first four trees are rooted with corresponding proteins from the primitive, freshwater cyanobacterium Gloeobacter violaceus, taken as an outgroup. The PEII tree is unrooted since these proteins are specific for marine Synechococcus spp. Numbers at internal branches correspond to bootstrap values for 1,000 replicate trees obtained with ML/NJ/MP methods. Colored stars indicate the pigment type of each strain (see Figure 1 for color code).