Fig. 5.

Phylogenetic analysis of Preussia endophytes obtained from Sonoran Desert plants reveals high phylogenetic diversity, congruence of clades with OTU, and a lack of structure with regard to ecological and methodological factors. Terminal taxa in bold were isolated in this study and are annotated to indicate isolate number, host, tissue of origin, site and transect, sampling month, isolation medium and temperature, and OTU group, here listed such that shared letters indicate membership in the same OTU. Tree depicts the results of maximum likelihood (ML) analysis of ITSrDNA data; support values are ML bootstrap values (before slash; values ≥60% are shown) and Bayesian posterior probabilities (after slash; values ≥ 90% are shown).