Files in this Data Supplement:

• Supplemental file 1 - HPLC profiles of extracts from eight Burkholderia isolates indicating production of rhizoxins and rhizonins (Fig. S1); phylogeny of Rhizopus microsporus symbionts and selected closely related Burkholderia species based on 16S rDNA sequences (Fig. S2); phylogenetic trees of the endofungal symbiont complex derived from single loci of the multilocus sequence typing analysis (Fig. S3); phylogenetic tree derived from concatenated multilocus sequence typing data of the endofungal symbiont complex and Burkholderia pseudomallei (Fig. S4); phylogenetic affiliation of eight endosymbiotic Burkholderia strains, Burkholderia thailandensis E264, Pseudomonas fluorescens Pf-5, and Escherichia coli DH5α based on similarities in their protein profiles monitored by MALDI-TOF (Fig. S5); reduced GC content of the fungal endosymbionts compared to three free-living, closely related species, obtained from MLST data (Fig. S6); phylogenetic tree of fungal host 18S rDNA sequences (Fig. S7); detailed materials and methods and sequence accession numbers.
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