This can be seen by combining trees into networks for genes that encode phycobilisomes (A), photosystem I (B), photosystem II (C), and regulatory cascade components (D). The same six groups (I-VI, color-coded and listed at the bottom) can be seen. Thin branches mark agreements between the trees, and thicker branches mark disagreements. Red boxes highlight a divergent lineage, probablyOculatellales, that could not be easily assigned. Evolutionary rates affect how well the trees match, with the photosystem I network (B) being noisy. Networks built with SplitsTree. Individual trees are listed inTable S6.
