FIG 3.

Phylogenetic network inferred with the concatenation of five housekeeping gene loci (atpD-gyrB-recA-rpoB-trpB). Lines between splits represent uncertainty in the phylogeny and are expected if recombination has occurred. Strains from insects, sea, soil, and other sources are in green, blue, red and black, respectively. Clusters identified in the phylogenetic analysis are labeled, and cluster IV, which may represent an incipient species in S. albidoflavus, is green coded. Bar = 0.1% sequence divergence.