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Members of the genus Neisseria have been isolated from or detected in a wide range of animals, from non-human primates and felids to a rodent, the guinea pig. By means of selective culture, biochemical testing, Gram staining and PCR screening for the Neisseria-specific internal transcribed spacer region of the rRNA operon, we isolated four strains of the genus Neisseria from the oral cavity of the wild house mouse, Mus musculus subsp. domesticus. The isolates are highly related and form a separate clade in the genus, as judged by tree analyses using either multi-locus sequence typing of ribosomal genes or core genes. One isolate, provisionally named Neisseria musculi sp. nov. (type strain AP2031T=DSM 101846T=CCUG 68283T=LMG 29261T), was studied further. Strain AP2031T/N. musculi grew well in vitro. It was naturally competent, taking up DNA in a DNA uptake sequence and pilT-dependent manner, and was amenable to genetic manipulation. These and other genomic attributes of N. musculi sp. nov. make it an ideal candidate for use in developing a mouse model for studying Neisseria-host interactions.

Original publication




Journal article


Int J Syst Evol Microbiol

Publication Date





3585 - 3593


Animals, Bacterial Typing Techniques, Base Composition, DNA, Bacterial, Genes, Bacterial, Mice, Mouth, Multilocus Sequence Typing, Neisseria, North America, Nucleic Acid Hybridization, Phylogeny, RNA, Ribosomal, 16S, Sequence Analysis, DNA