| infectivity and pathogenicity of yersinia enterocolitica serovar 0:8 to wild rodents in japan. | three species of wild rodents, anderson's red-backed voles (eothenomys andersoni), large japanese field mice (apodemus speciosus) and small japanese field mice (apodemus argenteus), mainly living in mountainous areas in japan, were challenged orally with yersinia enterocolitica serovar 0:8 to determine infectivity and pathogenicity of this micro-organism with respect to wild rodents. y. enterocolitica 0:8 was shown to colonize the intestinal tract of these three types of wild rodents, and was oc ... | 1994 | 7701863 |
| distribution of borrelia species associated with lyme disease in the subalpine forests of nagano prefecture, japan. | we surveyed the natural distribution of borrelia species associated with lyme disease in the subalpine forests of nagano prefecture, japan, during 1993-94. tick-derived isolates (n = 112) from ixodes persulcatus and rodent-derived isolates (n = 55) from apodemus argenteus, apodemus speciosus, eothenomys andersoni, eothenomys smithii, and microtus montebelli were classified by rrna gene restriction fragment length polymorphism analysis (rflp ribotyping). ribotype group iv (an intraspecific varian ... | 1996 | 8709867 |
| intra- and interspecific genetic complexities of two eothenomys species in honshu, japan. | differences in the nuclear ribosomal dna (rdna), mitochondrial dna (mtdna), cytochrome b (cytb), and y chromosomal sry genes were used to assess intra- and interspecific relationships in two japanese red-backed voles, eothenomys andersoni and e. smithii, focusing on areas where the two species might come into contact. in the kii peninsula, southwestern honshu, which contains an allopatric population of e. andersoni isolated from its main range, the rdna-rflp data provide robust evidence of past ... | 2003 | 14569153 |
| u.s.-type babesia microti isolated from small wild mammals in eastern hokkaido, japan. | our previous report demonstrated that small wild rodents in japan harbored two types of novel babesia microti-like parasites (kobe and hobetsu types), but not the type widely distributed throughout the temperate zones of north american and eurasian continents (u.s. type). in this study, we surveyed small wild mammals collected at various places in the northern part of japan, seeking for u.s.-type b. microti. a total of 197 small mammals comprising 10 species, apodemus speciosus, a. argenteus, cl ... | 2004 | 15353841 |
| survey of babesia microti infection in field rodents in japan: records of the kobe-type in new foci and findings of a new type related to the otsu-type. | of 247 rodents comprising 5 genera and 7 species collected at 17 sites throughout japan from 2003 to 2005, babesia microti was detected microscopically and by polymerase chain reaction (pcr) in 36 rodents comprising 2 genera and 3 species from 12 sites. based on the analysis of small subunit ribosomal rna gene (ssurdna) sequences, the kobe-type, the etiological type of the first japanese case of human infection was found in apodemus speciosus and apodemus argenteus in aomori, the northernmost pr ... | 2007 | 17237595 |
| historical biogeography at the crossroads of the northern continents: molecular phylogenetics of red-backed voles (rodentia: arvicolinae). | evolutionary relationships of red-backed voles and their relatives were examined and used to test biogeographic hypotheses. sequences of the mitochondrial cytochrome b gene were obtained for 25 individuals representing alticola macrotis, clethrionomys californicus, c. gapperi, c. glareolus, c. rutilus, and c. rufocanus. these were combined with 21 partial sequences from genbank for c. regulus, c. rex, c. rufocanus, c. rutilus, eothenomys imaizumii, e. melanogaster, phaulomys andersoni, and p. sm ... | 2004 | 15012954 |
| molecular phylogeny and biogeography of oriental voles: genus eothenomys (muridae, mammalia). | oriental voles of the genus eothenomys are predominantly distributed along the southeastern shoulder of the qinghai-tibetan plateau. based on phylogenetic analyses of the mitochondrial cytochrome b gene (1143 bp) obtained from 23 specimens (eight species) of oriental voles collected from this area, together with nucleotide sequences from six specimens (two species) of japanese red-backed voles (eothenomys andersoni and eothenomys smithii) and five species of the closely related genus clethrionom ... | 2004 | 15336670 |