Figure 5

Maximum likelihood phylogeny of large subunit ribosomal RNA ( LSUrRNA ) under General Time-Reversible (GTR) model of substitution. Numbers at nodes indicate bootstrap support for major nodes over 50% from ML (top) and distance (bottom). A dash (-) indicates support less than 50%. Major groups are labeled to the right, with diatoms (red) indicated by a box and D. baltica and K. foliaceum genes in black.