Affiliation:
1. Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, D-15374 Müncheberg, Germany
Abstract
The genera
Proteus
and
Cosenzaea
are closely related members of the family
Morganellaceae
. The genus
Cosenzaea
consists of the species
Cosenzaea myxofaciens
originally separated from the genus
Proteus
by rpoB gene analysis. Due to the high similarity of the 16S rRNA genes between species of both genera, the taxonomic status is here re-evaluated by a genome-based approach. Based on a core genome phylogeny and genome relatedness indices, it is shown that the taxonomy and nomenclature given for the basonym
Proteus myxofaciens
is more appropriate. Therefore, we propose to use this name in preference. Furthermore, the species status of
Proteus terrae
and
Proteus cibarius
was reassessed. Both species are related at subspecies level by digital DNA–DNA hybridization (dDDH) analysis. Additionally, average amino acid identity (AAI) and average nucleotide identity (ANI) do not support a separate species status, and therefore it is proposed to classify
P. cibarius
as a subspecies of
P. terrae
. Consequently, both species are being renamed
Proteus terrae
subsp. cibarius subsp. nov. and
Proteus terrae
subsp. terrae subsp. nov., respectively. The genome relatedness indices revealed a close relationship of the
Proteus
genomospecies 5 with
P. terrae
subsp. terrae. Thus, it has been assigned to the same subspecies.
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
Cited by
8 articles.
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