A fructose-6-phosphate phosphoketolase-positive strain (GSD1FS) was isolated from a faecal sample of a 3 weeks old German Shepherd dog. The closest related taxa to isolate GSD1FS based on results from the EZBioCloud database were subsp. ATCC 25527, subsp. DSM 10140 and LMG 30189, belonging to the phylogenetic group. The resulting 16S rRNA gene identities (compared length of 1454 nucleotides) towards these taxa were 97.30, 97.23 and 97.09 %, respectively. The pairwise similarities of strain GSD1FS using , , , 60, , , and gene fragments to all valid representatives of the phylogenetic group were in the concatenated range of 83.08-88.34 %. Phylogenomic analysis based on whole-genome methods such as average nucleotide identity revealed that bifidobacterial strain GSD1FS exhibits close phylogenetic relatedness (88.17 %) to LMG 10738. Genotypic characteristics and phylogenetic analyses based on nine molecular markers, as well as genomic and comparative phenotypic analyses, clearly proved that the evaluated strain should be considered as representing a novel species within the phylogenetic group named as sp. nov. (GSD1FS=DSM 105923=LMG 30345=CCM 8806).
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