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. 2020 Jul 14;11:1594. doi: 10.3389/fmicb.2020.01594

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Copyright © 2020 Depoorter, De Canck, Peeters, Wieme, Cnockaert, Zlosnik, LiPuma, Coenye and Vandamme.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Phylogenetic tree based on the concatenated sequences (2760 bp) of seven housekeeping gene fragments of established Bcc species, taxon K strains and related Other Bcc isolates. Sequences [atpD (443 bp), gltB (400 bp), gyrB (454 bp), recA (393 bp), lepA (397 bp), phaC (385 bp), and trpB (301 bp)] corresponding to 1120 sequence types (STs) were downloaded from the Bcc PubMLST database (https://pubmlst.org/bcc/) (Jolley and Maiden, 2010) and aligned based on their amino acid sequences. Phylogeny was inferred using the Maximum Likelihood method and GTRCAT substitution model in RAxML. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (1,000 replicates) are shown next to the branches if greater than 50%. The scale bar indicates the number of nucleotide substitutions per site. STs indicated in bold font were used for phylogenetic analyses and 39 taxon K STs indicated in bold were used for MALDI-TOF MS analyses. Gray circles indicate collapsed branches, the number of STs in such a collapsed branch is given after the species name between parentheses. STs that were reclassified into the novel species Burkholderia aenigmatica sp. nov. are marked in blue.