Maximum clade probability chronogram from the BEAST analysis of the GSIIB and GSIIE amino acid sequence alignment. All lineages were allowed to evolve according to a relaxed molecular clock and WAG + Inv + Gamma model. Bars on nodes indicate the width of the 95% highest posterior density for each divergence time.
Ghoshroy et al. BMC Evolutionary Biology 2010 10:198 doi:10.1186/1471-2148-10-198