Figure 2.

Phylogenetic analysis. (a) Phylogeny of O. biroi from Bangladesh and the globally invasive range. Numbers indicate bootstrap support; scale bar indicates proportional divergence at informative loci. Globally invasive lines (A–D) are nested within the diversity of Bangladesh lines (I–M; globally invasive lines C and D were also found in Bangladesh) (grey box). Outgroup in grey: O. australis (senior synonym of Cerapachys edentata [22]). (b) Relationship between geographic and genetic distances of Ooceraea collections from the Asian continent. Genetic distances are derived from branch lengths in figure 2a. Green points (native; collected outside of Bangladesh) are pairwise distances between every native Ooceraea collection from India, Vietnam and China with every other such collection, and with every Bangladesh line. Yellow points (native; collected in Bangladesh) are distances between all pairs of Bangladesh lines (I–M). Red points (globally invasive; collected in Bangladesh) represent distances between our new Bangladesh collections of globally invasive lines (C and D) and our new Bangladesh lines (I–M).