AI Article Synopsis
- The genus in the relevant family is identified as polyphyletic, indicating that it includes species that do not share a common ancestor.
- Whole-genome analysis revealed a multi-modal distribution of amino acid identity (AAI) values among the genus's species, suggesting patterns linked to historical biodiversity losses during extinction events.
- The study proposes reassigning several species to different genera, describes two new species, and introduces a new genus, with specific species categorized accordingly.
Article Abstract
The genus in the family is known to be polyphyletic. Amino acid identity (AAI) values were calculated from whole-genome sequences of species of the genus and their distribution was found to be multi-modal. These naturally-occurring non-continuities were leveraged to standardise genus assignment of these species. We speculate that this multi-modal distribution is a consequence of loss of biodiversity during major extinction events, leading to the concept that a bacterial genus corresponds to a set of species that diversified since the Permian extinction. Transfer of nine species (, , and ) to the genus and eleven (, , , , , , , , and ) to the genus is proposed. Two novel species are described: sp. nov. and sp. nov. Evidence is presented to support the assignment of to a genus apart from to which comb nov. also belongs. The novel genus is proposed, to contain the type species comb. nov., along with comb. nov., and comb. nov.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7660247 | PMC |
| http://dx.doi.org/10.1099/ijsem.0.003935 | DOI Listing |
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