Phylogenetic position of lycophytes, and relationships among Group III GSK3 genes. Upper left insert indicates the position of the depicted phylogeny relative to the overall land plant GSK3 gene tree depicted in Figure 1. Stars correspond to postulated whole-genome duplication events in Table 1. Bootstrap support values are provided adjacent to nodes.
Qi et al. BMC Evolutionary Biology 2013 13:143 doi:10.1186/1471-2148-13-143