Fig. 3

Phylogenetic positions of 33 Taiwanese strains within three forms of Volvox carteri. The tree was based on the maximum likelihood (ML) analysis of the data matrix of Kawafune et al. (2015) plus a Chinese strain “Wang (Shenzhen)” (Additional file 1: Figure S1). Numbers at left and right above the branches represent bootstrap values (50% or more) of ML and maximum parsimony analyses, respectively, based on 1000 replicates. The branch lengths are proportional to the evolutionary distances used in the ML analysis and indicated by bar above the tree. For details, see “Methods”