{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T22:02:26Z","timestamp":1791324146679,"version":"4.3.1"},"reference-count":22,"publisher":"Microbiology Society","issue":"Pt_7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,7,1]]},"abstract":"<jats:p>\n                    The taxonomic position of a group of seven closely related lactose-negative enterobacterial strains, which were isolated from fresh faecal samples of\n                    <jats:italic>Marmota himalayana<\/jats:italic>\n                    collected from the Qinghai-Tibetan plateau, China, was determined by using a polyphasic approach. Cells were Gram-reaction-negative, non-sporulating, non-motile, short rods (0.5\u20131\u2009\u00d7\u20091\u20132.5\u2009\u03bcm). By 16S rRNA gene sequences, the representative strain, HT073016\n                    <jats:sup>T<\/jats:sup>\n                    , showed highest similarity values with\n                    <jats:italic>Escherichia fergusonii<\/jats:italic>\n                    ATCC 35469\n                    <jats:sup>T<\/jats:sup>\n                    at 99.3\u2009%,\n                    <jats:italic>Escherichia coli<\/jats:italic>\n                    ATCC 11775\n                    <jats:sup>T<\/jats:sup>\n                    at 99.2\u2009%,\n                    <jats:italic>Escherichia albertii<\/jats:italic>\n                    LMG 20976\n                    <jats:sup>T<\/jats:sup>\n                    at 98.9\u2009%,\n                    <jats:italic>Escherichia hermannii<\/jats:italic>\n                    CIP 103176\n                    <jats:sup>T<\/jats:sup>\n                    at 98.4\u2009%, and\n                    <jats:italic>Escherichia vulneris<\/jats:italic>\n                    ATCC 33821\n                    <jats:sup>T<\/jats:sup>\n                    at 97.7\u2009%. Phylogenetic analysis based on the 16S rRNA gene sequences showed that the seven strains formed a monophyletic group with five other species of the genus\n                    <jats:italic>Escherichia.<\/jats:italic>\n                    Digital DNA\u2013DNA hybridization studies between strain HT073016\n                    <jats:sup>T<\/jats:sup>\n                    and five other species of the genus\n                    <jats:italic>Escherichia<\/jats:italic>\n                    showed that it shared less than 70\u2009% DNA\u2013DNA relatedness with all known species of the genus\n                    <jats:italic>Escherichia<\/jats:italic>\n                    , supporting the novel species status of the strain. The DNA G+C content of strain HT073016\n                    <jats:sup>T<\/jats:sup>\n                    was 53.8\u200amol%. On the basis of phenotypic and phylogenetic characteristics, strain HT073016\n                    <jats:sup>T<\/jats:sup>\n                    and the six other HT073016\n                    <jats:sup>T<\/jats:sup>\n                    -like strains were clearly distinct from the type strains of other recognized species of the genus\n                    <jats:italic>Escherichia<\/jats:italic>\n                    and represent a novel species of the genus\n                    <jats:italic>Escherichia<\/jats:italic>\n                    , for which the name\n                    <jats:italic>Escherichia marmotae<\/jats:italic>\n                    sp. nov. is proposed, with HT073016\n                    <jats:sup>T<\/jats:sup>\n                    (\u2009=\u2009CGMCC 1.12862\n                    <jats:sup>T<\/jats:sup>\n                    \u2009=\u2009DSM 28771\n                    <jats:sup>T<\/jats:sup>\n                    ) as the type strain.\n                  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Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruiting","family":"Lan","sequence":"additional","affiliation":[{"name":"School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiting","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Infectious Disease Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiong","family":"Meng","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Infectious Disease Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hang","family":"Dai","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Infectious Disease Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shan","family":"Lu","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Infectious Disease Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shoukui","family":"Hu","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Infectious Disease Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianguo","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Laboratory for Infectious Disease Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, 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