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. 2021 Mar 25;10(3):giab021. doi: 10.1093/gigascience/giab021

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© The Author(s) 2021. Published by Oxford University Press GigaScience.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2: — Cladogram of the maximum likelihood (ML) tree of 1,126 proteobacteria COI contaminants retrieved from a BOLD project incorporating 184,585 arthropod specimens. The tree is based on 561 bp and is rooted with the free-living alphaproteobacteria Pelagibacter ubique. Parentheses indicate the number of BOLD contaminants present in each group. Tips are labelled by BOLD processing ID and host arthropod taxonomy. The Rickettsiales genera of Anaplasma, Rickettsia (collapsed node), Orientia, and Wolbachia supergroups (A, B, E, and F), as well as the Legionellales genera Legionella and Rickettsiella, are included as reference sequences (Accession numbers: Additional file 10).