Fig. 3: Phylogenetic relationships among phylotypes of the Raphidonema groups.
From: Evolution of snow algae, from cosmopolitans to endemics, revealed by DNA analysis of ancient ice
Phylotype networks for ITS2 sequences within Groups A (a), B (b), and C (c) of the Raphidonema group that include the cosmopolitan phylotypes in this study. The median-joining method was used. Circles indicate phylotypes; the size of each circle is proportional to the number of unique sequences. Each notch on the edges represents a mutation. Phylotypes are colored according to geographic region. The arrow represents the phylotype in the outgroup (see Fig. S6).
