Phylogenetic affiliation of mitochondria with Alpha-II and Rickettsiales is an artefact
Martijn, J.; Vosseberg, J.; Guy, L.; Offre, P.; Ettema, T.J.G. (2022). Phylogenetic affiliation of mitochondria with Alpha-II and Rickettsiales is an artefact. Nature Ecology & Evolution 6: 1829-1831. https://dx.doi.org/10.1038/s41559-022-01871-3Additional data: In: Nature Ecology & Evolution. Springer Nature. ISSN 2397-334X, more |   |
| Authors | | Top | - Martijn, J.
- Vosseberg, J.
- Guy, L.
| - Offre, P., more
- Ettema, T.J.G.
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| Abstract | Fan et al. challenge the finding that mitochondria represent a sister group to Alphaproteobacteria1, arguing that support for thisposition can be explained by unreliable site removal methods andoutgroup attraction. The authors chose to reduce compositionalheterogeneity by replacing AT-rich Rickettsiales and mitochondriawith GC-rich alternatives and attempted to attenuate long branchattraction (LBA) effects by removing all fast-evolving lineages butone. The study suggests that mitochondria form a sister clade toRickettsiales, within the ‘Alpha-II’ clade. Here we show that the association with Alpha-II is an artefact caused by a problematic taxonand that residual support for Rickettsiales-sister can be explained byconvergent evolution of the selected mitochondria and Rickettsialestowards high %GC. We further argue that site removal methods arein fact reliable and that outgroup attraction is unlikely to explain theAlphaproteobacteria-sister tree |
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