Elevation of three subspecies of Lonsdalea quercina to species level: Lonsdalea britannica sp. nov., Lonsdalea iberica sp. nov. and Lonsdalea populi sp. nov.
2017
Four subspecies of
Lonsdalea quercina
(
L. quercina
subsp.
quercina
,
L. quercina
subsp.
britannica
,
L. quercina
subsp.
iberica
and
L. quercina
subsp.
populi
) were studied by genome sequence-derived average nucleotide identity (ANI), phylogenetic analysis based on 16S rRNA gene sequences, multilocus sequence analysis (MLSA) and phenotypic characteristics. In phylogenetic trees, based on 16S rRNA gene sequences, and in MLSA data, the four subspecies were divided into four subclusters in the
Lonsdalea
clade with high boot strap support. The ANI values between the four subspecies were 88.71–93.38 %, respectively, lower than the proposed species boundary ANI cut-off (95–96 %) that is considered the most important criterion to reclassify these subspecies at the species level. It is proposed that three subspecies be elevated to the species level as
Lonsdalea
britannica sp. nov. (type strain R-43280T=LMG 26267T=NCPPB 4481T=CFCC 10822T),
Lonsdalea
iberica sp. nov. (type strain R-44166T=LMG 26264T=NCPPB 4490T=CFCC 10824T) and
Lonsdalea
populi sp. nov. (type strain NY060T=DSM 25466T=NCAIM B 02483T=LMG 27349T=CFCC 13125T).
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