Figure 1.

Phylogenetic tree highlighting the position of P. saltans relative to the other type strains within the genus Pedobacter. The tree was inferred from 1,402 aligned characters [22,23] of the 16S rRNA gene sequence under the maximum-likelihood (ML) criterion [24] and rooted with the type strain of the type species of the family Sphingobacteriaceae [25]. The branches are scaled in terms of the expected number of substitutions per site. Numbers adjacent to the branches are support values from 550 ML bootstrap replicates [26] (left) and from 1,000 maximum-parsimony bootstrap replicates [27] (right) if larger than 60%. Lineages with type strain genome sequencing projects registered in GOLD [28] as unpublished are marked with one asterisk, those listed as published with two asterisks [29]. Note that the taxon selection used in this figure does not allow conclusions about the monophyly of the genus Pedobacter. In an expanded analysis also including the genera Mucilaginibacter and Nubsella (data not shown), neither the Kishino-Hasegawa test as implemented in PAUP* [27] in conjunction with the maximum-parsimony criterion nor the Shimodaira-Hasegawa test as implemented in RAxML [24] in conjunction with the ML criterion indicated a significant difference between the respective globally best tree and the best tree after constraining for the monophyly of all four genera. (See, e.g. chapter 21 in [30] for an in-depth description of such paired-site tests.)