| [populational chromosomal polymorphism the asian forest mouse apodemus peninsulae]. | 29 individuals of apodemus peninsulae, an asian forest mouse from the suputin state nature reserve (maritime territory) were studied karyologically. diploid chromosome sets of the animals studied contained from 48 to 52 chromosomes. the difference in the diploid chromosome numbers is caused by the presence in some individuals of supernumerary metacentric chromosomes (up to 4). the set is always represented by 48 acrocentric chromosomes, gradually decreasing in size. the supernumerary metacentric ... | 1975 | 1218720 |
| [the clinal variability of the b-chromosome system in the east asian mouse apodemus peninsulae from buryatia and mongolia]. | karyological investigation of 22 east-asiatic mice from different points of the north mongolia showed the availability in all the mice from 1 to 13 b chromosomes, including from 1 to 5 middle-sized and small two-shoulder chromosomes, from 0 to 11 dot-like b chromosomes, and, seldom, 1 small acrocentric b chromosome. nearly every mouse is characterized by its variant of b-chromosome system. most frequent mice with 3, 4 and 8 b chromosomes were met. the comparison of the b-chromosome system varian ... | 1991 | 1866789 |
| [synaptonemal complexes of the a- and b-chromosomes of the spermatocytes from the east asian mouse apodemus peninsulae]. | the analysis of whole-mount preparations of synaptonemal complexes (scs) from surface-spread spermatocytes of a. peninsulae (2n = 48a + 1, 2, ... 12 b) had revealed scs of 23 autosomal bivalents, sex bivalent xy, axial cores and scs of the b-chromosomes. the intercellular and interindividual variability of the number of b-chromosomes varied from 1 to 12 per cell. the scs of autosomal bivalents were shown to have a typical structure. the structure and behaviour of scs of sex bivalent throughout m ... | 1990 | 2368162 |
| epidemiological studies on hemorrhagic fever with renal syndrome in china. | hemorrhagic fever with renal syndrome (hfrs) has been reported from greater than 20 provinces in china. the number of reported cases has increased markedly in recent years and surpassed 80,000 human cases in 1983. all of the cases reported before 1981 were from rural areas and were attributed to apodemus rats. in 1981, outbreaks of cases associated with house rats were first reported. cases associated with apodemus agrarius were more severe than those associated with the house rat rattus norvegi ... | 1986 | 2874178 |
| synaptonemal complex analysis of b-chromosome behavior in meiotic prophase i in the east-asiatic mouse apodemus peninsulae (muridae, rodentia). | the mitotic and meiotic chromosomes of four male east-asiatic mice, apodemus peninsulae, having three to seven chromosomes in addition to the standard karyotype (2n = 48), were investigated. b-chromosomes were represented by medium-sized metacentric and dotlike chromosomes. mosaicism of bone marrow cells due to a numerical variation of accessory chromosomes was established for the males examined. capacity of b-chromosomes to form axial elements and synaptonemal complexes in meiotic prophase i wa ... | 1988 | 3234042 |
| [unusually high number of b-chromosomes and mosaicism among them in the asiatic forest mouse apodemus peninsulae (rodentia, muridae)]. | karyological analysis of apodemus peninsulae from western siberia was made. it was established that animals under study are characterized both by interindividual variation of b-chromosome number or polymorphism which was described previously and by intraindividual variation or mosaicism. diploid numbers are 55-57, 58-61, 61-65 and 68-72, i. e. studied animals possess 3, 4, 5 and 5 cell clones, respectively. the highest number of b-chromosomes in mammals was found to be 24. | 1980 | 7414685 |
| [differentiation of gc-rich restriction sites in the highly repeated dna in apodemus (muridae, rodentia]. | ndnas of six species of wood and field mice of the genus apodemus (peninsulae, flavicolis, microps, speciosus, and agrarius), grey rat rattus norvegicus as well, and house mouse mus musculus were digested with restriction endonucleases (mspi (ccgg), bspri (ggcc) and mvai (cca/tgg). two highly representative satellites are found in a.peninsulae (8%) and m.musculus (20%) genomes using bspri and mvai. the length of restriction fragments of these components are equal to n x 30 and n x 230 nb, respec ... | 1993 | 8370513 |
| [cytogenetic patterns in synapsis of meiotic chromosomes in animals and plants]. | chromosome synapsis in meiosis is performed through the formation of a synaptonemal complex (sc). the sc aggregates homologues until the diplotene stage, when the function of physical binding is carried out by a chiasmata. sc formation is controlled by specific genes. regularities of sc formation in animals and plants are being studied at the laboratory of cytogenetics, vavilov institute of general genetics, the russian academy of sciences. it was shown that, in drosophila melanogaster, the pres ... | 1996 | 9119209 |
| community structure and prevalence of hantavirus infection in rodents: a geographic division of the enzootic area in far eastern russia. | the results of an extensive rodent trapping effort throughout the southern part of far eastern russia and hantavirus antigen screening of tissues were used to develop a multifaceted approach for the geographic division of the enzootic territory of hantavirus. four species of rodents (apodemus agrarius, apodemus peninsulae, microtus fortis, and clethrionomys rufocanus) comprised 88.5 percent of 10,595 captured rodents and 94.1 percent of 996 antigen-positive animals. rodent fauna and the prevalen ... | 1997 | 9221739 |
| genetic diversity of borrelia burgdorferi sensu lato isolated in far eastern russia. | one-hundred and fifty-seven borrelia isolated from adult ticks, ixodes persulcatus, and wild rodents, clethrionomys rufocanus and apodemus peninsulae, in the far eastern part of russia were characterized and identified by restriction fragment length polymorphism (rflp) of the 5s-23s rrna intergenic spacer. some isolates showed unique rflp patterns and were determined as borrelia garinii on the basis of a sequence analysis of the intergenic spacer amplicon and reactivity with species-specific mon ... | 1997 | 9310938 |
| lyme disease spirochetes in ticks from northeastern china. | during may 1996, field surveys on lyme disease spirochetes were conducted in beijing, shenyang, fushun, and inner mongolia in northeastern china. the ticks collected consisted of 3 genera and 12 species. of these, ixodes persulcatus was dominant in sun-exposed vegetation in forests in inner mongolia; 57 borrelia strains (55/123 unfed adults and 2/5 immature stages fed on a rodent) were obtained from this tick by bsk culture. additionally, 2/2 apodemus peninsulae were positive. ixodes nipponensis ... | 1998 | 9645846 |
| [supernumerary chromosomes, mosaicism, and dynamics in two populations of eastern-asian wood mouse (apodemus peninsulae, rodentia) from primorskiĭ krai at various seasons of the year]. | karyotypes of 47 individuals of the wood mice apodemus peninsulae from two reserves in primorskii krai (kedrovaya pad' and ussuriiskii) were studied during spring, summer, and autumn. in each population, variation in the number of b-chromosomes (2n = 48 + 0-5b) as well as the intratissue mosaicism determined by variation of the number, size and morphology of supernumerary chromosomes were described. animals that have one dotlike b-chromosome were first described in both populations as rare varia ... | 1999 | 10519071 |
| molecular genetic analysis of reovirus isolated in korea. | reovirus isolates from human, striped-field mouse (apodemus agrarius) and korean field mouse (a. peninsulae) in korea showed extensive variability in the patterns of electrophoretic migration of the double-stranded rna (dsrna) genome segments. hemagglutination inhibition (hi) test was performed for serotype determination of 12 reovirus isolates. to clarify genetic diversity and molecular phylogeny of korean reoviruses, l1, s3 and s4 genomic segments of reoviruses were amplified by rt-pcr and dir ... | 2001 | 11402625 |
| a newly discovered variant of a hantavirus in apodemus peninsulae, far eastern russia. | | 2001 | 11747715 |
| complex structure of b-chromosomes in two mammalian species: apodemus peninsulae (rodentia) and nyctereutes procyonoides (carnivora). | b-chromosomes (bs) of two mammalian species, raccoon dog (nyctereutesprocyonoides, carnivora) and asian wood mouse (apodemus peninsulae, rodentia) were investigated using chromosome segment microdissection and double-colour fish. in the raccoon dog, all b-chromosomes showed homology with each other but not with the a-chromosomes. two segment-specific probes (from proximal and distal parts of b) have been localized in corresponding chromosome parts, with significant variation in their sizes. in a ... | 2002 | 11993931 |
| a spatial aspect on mitochondrial dna genealogy in apodemus peninsulae from east asia. | apodemus peninsulae is a field mouse that inhabits the broad-leafed forests of temperate eurasia. we examined the mitochondrial cytochrome b gene in 57 in dividuals of a. peninsulae from northeastern asia, including siberia, primorye, magadan region, sakhalin, hokkaido, and the korean peninsula. the genealogy of the mitochondrial dna (mtdna) in a. peninsulae was shown to have substantial geographic affinity, suggesting geographic architecture of northeastern asia, including the islands of sakhal ... | 2002 | 12137330 |
| genetic characterization of hantaviruses transmitted by the korean field mouse (apodemus peninsulae), far east russia. | in an epizootiologic survey of 122 rodents captured in vladivostok, russia, antibodies positive for hantavirus were found in apodemus peninsulae (4/70), a. agrarius (1/39), and clethrionomys rufocanus (1/8). the hantavirus sequences identified in two seropositive a. peninsulae and two patients with hemorrhagic fever with renal syndrome (hfrs) from the primorye region of far east russia were designated as solovey and primorye, respectively. the nucleotide sequences of the solovey, primorye, and a ... | 2002 | 12141960 |
| b chromosomes of korean field mouse apodemus peninsulae (rodentia, murinae) analysed by microdissection and fish. | organization of b chromosomes in the korean field mouse apodemus peninsulae was analyzed. we painted its metaphase chromosomes with whole and partial chromosome paints generated by microdissection and dop-pcr. the results of the painting indicated that all b chromosomes contained a large amount of repeated dna sequences. the repeats could be classified in terms of their homology and predominant location. pericentromeric repeats of b chromosomes were present in many copies in pericentromeric c-bl ... | 2002 | 12438792 |
| persistent infection of mongolian jirds with a non-pathogenic trypanosome, trypanosoma (herpetosoma) grosi. | non-pathogenic trypanosomes of the subgenus herpetosoma are normally host specific, and laboratory models include trypanosoma lewisi in rats and trypanosoma musculi in mice. two isolates of trypanosoma grosi, originating from apodemus agrarius and apodemus peninsulae, grew well in mongolian jirds, meriones unguiculatus, after intraperitoneal inoculation of 2 x 10(5) or a minimum 500 bloodstream forms. the course of t. grosi infection in jirds resembled t. musculi infection in mice, rather than t ... | 2003 | 14636022 |
| genetic and antigenic characterization of the amur virus associated with hemorrhagic fever with renal syndrome. | the genetic and antigenic characteristics of the amur (amr) and far east (fe) virus lineages, which are both within the genus hantavirus, were studied. representative viruses, h5 and b78 for amr and bao 14 for fe, were used. the entire small (s) and medium (m) segments, except for the 3'- and 5'-ends, were sequenced. the deduced amino acid sequences of amr had 96.7 and 92.0-92.2% identities with the hantaan (htn) virus in the s and m segments, respectively. the amino acid sequences of fe had 99. ... | 2004 | 15041180 |
| a complex b chromosome system in the korean field mouse, apodemus peninsulae. | information on b chromosomes of six subspecies of a. peninsulae thomas, 1906, from 79 local populations of russia (siberia, altai, buryatia and the far east), mongolia, china, korea and japan (hokkaido) is reviewed. the frequency of animals with b chromosomes is higher in this taxon than in other mammals and ranges from 0.4 up to 1.0, excluding two insular populations (sakhalin island and stenin island, primorye) where bs were not found. the b chromosome polymorphism shows four levels of variati ... | 2004 | 15292602 |
| comparative analysis of micro and macro b chromosomes in the korean field mouse apodemus peninsulae (rodentia, murinae) performed by chromosome microdissection and fish. | comparative analysis of micro b and macro b chromosomes of the korean field mouse apodemus peninsulae, collected in populations from siberia and the russian far east, was performed with giemsa, dapi, ag-nor staining and chromosome painting with whole and partial chromosome probes generated by microdissection and dop-pcr. dna composition of micro b chromosomes was different from that of macro b chromosomes. all analyzed micro b chromosomes contained clusters of dna repeats associated with regions ... | 2004 | 15292605 |
| soochong virus: an antigenically and genetically distinct hantavirus isolated from apodemus peninsulae in korea. | hantaan (htn) virus, the etiologic agent of clinically severe hemorrhagic fever with renal syndrome (hfrs), was first isolated in 1976 from lung tissue of a striped-field mouse (apodemus agrarius) captured in songnae-ri, gyeonggi province, republic of korea. found primarily in mountainous areas, the korean field mouse (a. peninsulae) is the second-most dominant field rodent species found throughout korea. a new hantavirus, designated soochong (soo), was isolated in vero e6 cells from four a. pen ... | 2006 | 16372283 |
| molecular screening of bartonella species in rodents from the russian far east. | a potentially broad-range pcr system for glta gene amplification has been designed. a nearly full (992 bp) sequence of the glta gene was amplified in two steps. dna was extracted from organs (spleen and liver) of four mostly spread species of rodents: apodemus agrarius and apodemus peninsulae mice; clethrionomys rufocanus and microtus fortis voles. all amplicons have been sequenced. the incidence of bartonella species in rodents was 73%, 60%, 60%, and 83% for the above-mentioned rodents, respect ... | 2005 | 16481532 |
| isolation and characterization of hantavirus carried by apodemus peninsulae in jilin, china. | to provide a better understanding of hantavirus epidemiology in china, korean field mice (apodemus peninsulae) and striped field mice (apodemus agrarius) were captured in jilin province, china, where haemorrhagic fever with renal syndrome (hfrs) is endemic. hantavirus antigens were detected in eight of the 130 a. peninsulae individuals and in four of the 193 a. agrarius individuals by using an immunofluorescence assay. partial s and m segments were amplified from all of the antigen-positive samp ... | 2007 | 17374775 |
| increased number of b chromosomes in the eastern asian mice apodemus peninsulae (rodentia, muridae) from a mountain altai population. | | 2007 | 17515034 |
| a new hantaan-like virus in rodents (apodemus peninsulae) from northeastern china. | lung tissue samples of 76 korean field mice (apodemus peninsulae) collected from northeastern china bordering with far east russia and korea were detected for hantavirus partial m-segment or entire s-segment sequences by rt-pcr and 481-nt mitochondrial dna fragment of the rodents. four a. peninsulae mice were found positive for partial m-segment of hantavirus. sequence analyses of partial m-segment or/and entire s-segment of the hantaviruses revealed that three were closely related to hantaan vi ... | 2007 | 17624464 |
| soochong virus and amur virus might be the same entities of hantavirus. | amur virus (amrv) and soochong virus (soov) were reported to be carried by korean field mice (apodemus peninsulae) in the far east of russia, china, and korea. the distinction and demarcation between these two viruses have been a matter of debate. in order to clarify this issue and to confirm taxonomic position of amrv and soov, the extensive phylogenetic analyses based on entire s segment and entire m segment sequences of amrv, soov and other reference virus strains deposited in genbank, were c ... | 2007 | 17854038 |
| the delayed quinacrine mustard fluorescence from the c-blocks of apodemus argenteus is due to the introduction of nicks into the dna. | "delayed qm-fluorescence" refers to the unusual kinetics of fluorescence from most of the c-heterochromatic regions of the chromosomes of the small japanese field mouse apodemus argenteus. when stained with quinacrine mustard (qm-stained), these c-heterochromatic regions emit weak fluorescence immediately after exposure to blue light (bl); they emit bright fluorescence within a few minutes; and the intensity of the fluorescence gradually decreases after maximum fluorescence has been recorded. to ... | 2007 | 17867860 |
| [identification of amur like virus in apodemus peninsulae and its molecular characteristics in china]. | to confirm the existence of amur-like viruses in apodemus peninsulae in china, and to understand the molecular characteristics of these viruses. | 2007 | 17877180 |
| [study on the epidemiological characteristics of hemorrhagic fever with renal syndrome in inner mongolia]. | in order to better understand the epidemiological features of hantviruses in inner mongolia. | 2007 | 18396665 |
| [increase in the number of the b-chromosomes and variants of their system in mouse apodemus peninsulae in mountain altai population over 26 years]. | a new evolutionary genetic phenomenon - increase in the number of b-chromosomes (almost threefold) accompanied by change in b chromosome morphotypes - was discovered in the artybash population of east asian mouse apodemus peninsulae (mountain altai) over a historically short period (22 years), comparable with a small number of mouse generations (ten generations). the process of increase in the number of a. peninsulae b-chromosomes in mountain altai has been monitored over 26 years (1980, 1986, 1 ... | 2008 | 18846820 |
| molecular cloning and characterization of the repetitive dna sequences that comprise the constitutive heterochromatin of the a and b chromosomes of the korean field mouse (apodemus peninsulae, muridae, rodentia). | three novel families of repetitive dna sequences were molecularly cloned from the korean field mouse (apodemus peninsulae) and characterized by chromosome in-situ hybridization and filter hybridization. they were all localized to the centromeric regions of all autosomes and categorized into major satellite dna, type i minor, and type ii minor repetitive sequences. the type ii minor repetitive sequence also hybridized interspersedly in the non-centromeric regions. the major satellite dna sequence ... | 2008 | 18949567 |
| [diversity and individuality of variants of the system of b chromosomes in mice apodemus peninsulae]. | a complicated population system of b chromosomes has been revealed in the karyotypes of the east-asian mouse apodemus peninsulae over the whole range. based on our previous data for mice from altai, siberia, pribaikal'e, and mongolia and on the results of the present work, we infer that most of animals studied (196 out of 312, or 63%) have an individual variant of the b chromosome system. only three mice lacked b chromosomes. new data for 44 a. peninsulae mice caught in 2000-2005 in 16 localitie ... | 2008 | 19178085 |
| [the mechanisms of formation and evolution of b chromosomes in korean field mice apodemus peninsulae (mammalia, rodentia)]. | several hypotheses concerning variations in the frequency of some elementary events determining the formation and reorganization of mammalian b chromosomes are proposed on the basis of the data on their number, morphology, and dna composition in korean field mice apodemus peninsulae (mammalia, rodentia) from natural populations of altai, buryatia, irkutsk oblast, and primorye. the mechanisms and causes responsible for the formation of b chromosomes and differences in their organization in popula ... | 2009 | 19507698 |
| [b chromosome number polymorphism and mosaicism of the korean field mouse apodemus peninsulae (rodentia) in the russian far east]. | karyotype analysis of the apodemus peninsulae (n = 355) from 41 trapping points from the russian far east made it possible to reveal b chromosomes in 87.9 % animals, where 61.7% among them were mosaics. different levels of b chromosome numbers variability such as inter- and intrapopulational, and intraindividual (mosaicism) as well have been studied. it has been revealed that frequencies of occurrence of individuals with b chromosomes and mosaicism were not constant between different population' ... | 2009 | 20058812 |
| detection of bartonella species in small mammals from zhejiang province, china. | to estimate the prevalence of bartonella in small mammals of different species, during different seasons, and at different study sites, and to provide baseline data for the risk assessment of human bartonella infection, we captured small mammals using snap traps in zhejiang province, china. bartonella species were detected in small-mammal samples by polymerase chain reaction and positive amplicons were sequenced. bartonella dna was detected in 47% (90/192) of apodemus agrarius, 31% (14/45) of ra ... | 2010 | 20090031 |
| [multiplicity of b microchromosomes in a siberian population of mice apodemus peninsulae (2n = 48 + 4-30 b chromosomes)]. | differentiation of four siberian populations of east-asian (korean) field mice (apodemus peninsulae) inhabiting the basin of the mid-stream of the yenisei river was carried out according to the variants of the b chromosome system. a multiplicity of b microchromosomes (from 4 to 30) was found for the first time in all 26 mice from the left shore of the yenisei river in the mid-stream area. all of them probably belong to a population with b microchromosomes. it is likely that in this population fu ... | 2010 | 20734772 |
| differentiation in seed hoarding among three sympatric rodent species in a warm temperate forest. | although seed hoarding by rodents has been extensively studied, differentiation in seed-hoarding behaviors among sympatric rodent species has not been well investigated. using semi-natural enclosures, we demonstrated that three sympatric rodent species showed clear differentiation in food selection, scatter versus larder hoarding behaviors and eating behaviors when offered seeds of four plant species from a warm temperate forest in northern china. the large field mouse apodemus peninsulae prefer ... | 2008 | 21396061 |
| detection of rickettsia felis and rickettsia typhi and seasonal prevalence of fleas collected from small mammals at gyeonggi province in the republic of korea. | abstract fleas were collected from live-captured small mammals to identify flea-borne pathogens, host associations, and seasonal prevalence of flea species, as part of the 65th medical brigade rodent-borne disease surveillance program at 20 military installations and training sites, gyeonggi province, republic of korea, 2005-2007. a total of 1251 fleas were recovered from 2833 small mammals. apodemus agrarius, the striped field mouse, accounted for 93.1% (2,637/2,833) of all small mammals captur ... | 2011 | 21612536 |
| genetic diversity of anaplasma and ehrlichia in the asian part of russia. | totally, 2590 questing adult ixodes persulcatus ticks and 1458 small mammals from ural, siberia, and the far east as well as 53 haemaphysalis concinna, 136 haem. japonica, and 43 dermacentor silvarum ticks--exclusively adults--from the far east were examined for the presence of ehrlichia and anaplasma by nested pcr based on the 16s rrna gene. both anaplasma phagocytophilum and ehrlichia muris were found in i. persulcatus and small mammals from all the studied regions. myodes spp., microtus spp., ... | 2010 | 21771512 |
| The complete mitochondrial genome of the Korean field mouse Apodemus peninsulae (Rodentia, Murinae) from Korea. | We have determined the complete mitochondrial genome of a subspecies of the Korean field mouse, Apodemus peninsulae peninsulae, from South Korea. The total length of the A. p. peninsulae genome is 16,268 bp with a base composition of 34.5% A, 30.7% T, 22.6% C, and 12.2% G. | 2011 | 22040076 |
| the mitochondrial genome of apodemus peninsulae (rodentia, muridae). | the complete mitochondrial (mt) genome of the korean field mouse apodemus peninsulae was sequenced and found to be 16,266 bp in length. the mt protein-coding genes of a. peninsulae had atg, gtg, atc, and ata as initiation codons and taa, tag, ta, and t as termination codons. two forms each of trnl and trns and the three trna clusters, iqm, wancy, and hsl were identified, as in the typical rodentia mt genome. among trnas, abnormal cloverleaf structure of trns((agy)) was identified in dhu arm. the ... | 2011 | 22040077 |
| [stability of the population variants of the b-chromosome system in the east-asian mouse apodemys peninsulae from the baikal region and northern mongolia]. | analysis of the b-chromosome frequency and morphotypes in 160 mice apodemus peninsulae from 17 localities of the baikal region, northern mongolia, trans-baikalia, and the russian far east showed that the mice were from five geographical populations. the interpopulation difference was determined by variations of 0-4 macro b chromosomes and 0-11 micro b chromosomes. the b-chromosome number and morphotypes proved to be stable over the past 30 years in the geographical populations under study. | 2012 | 23270268 |
| abundance and seasonal activity of haemaphysalis concinna (acari: ixodidae) at the border between china and russia in northern inner mongolia, china. | haemaphysalis concinna, a three-host tick vector of several pathogens, poses a high risk to the health of humans and livestock. however, knowledge of the seasonal activities, relative density and other ecological characteristics of this tick is quite limited and fragmentary. this knowledge gap represents a bottleneck in our understanding of the health risks associated with tick-borne pathogens. | 2016 | 26728523 |
| [actual problems of hemorrhagic fever with renal syndrome]. | from 2000 to 2011 85 600 cases of hemorrhagic fever with renal syndrome (hfrs) were registered in russian federation. epidemically active foci of hfrs infection are located generally in temperate latitudes of the european part and the far east. in the far east regions whose fraction of all the hfrs disease cases in russia is around 2%, the causative agents of the infection are hantaan, amur, seoul hantaviruses, the natural reservoir for those are striped field mouse, korean field mouse and brown ... | 2013 | 23805652 |
| intestinal parasites among wild rodents in northern gangwon-do, korea. | to determine geographical patterns of natural parasite infections among wild rodents, a total of 46 wild rodents from 3 different localities in northern gangwon-do (province), korea were examined for intestinal parasite infections. along with nematodes such as hookworms and syphacia spp., plagiorchis muris (2 specimens) (trematoda) were collected from striped field mice, apodemus agrarius. in a korean wood mouse, apodemus peninsulae, the overall nematode infections were similar to a. agrarius, b ... | 2013 | 24327791 |
| hantaan virus surveillance targeting small mammals at nightmare range, a high elevation military training area, gyeonggi province, republic of korea. | rodent-borne disease surveillance was conducted at nightmare range (nm-r), near the demilitarized zone in northeast gyeonggi province, republic of korea, to identify hemorrhagic fever with renal syndrome (hfrs) risks for a mountainous high-elevation (500 m) military training site. monthly surveys were conducted from january 2008-december 2009. a total of 1,720 small mammals were captured belonging to the orders rodentia [families, sciuridae (1 species) and muridae (7 species)] and soricomorpha [ ... | 2015 | 25874643 |
| isolation and characterization of hantaviruses in far east russia and etiology of hemorrhagic fever with renal syndrome in the region. | hemorrhagic fever with renal syndrome (hfrs) is a serious public health issue in far east russia. two different hantaviruses were isolated from rodents captured in the khabarovsk region: amur virus (amrv; khekhtsir/ap209/2005 strain from apodemus peninsulae) and hantaan virus (htnv; galkino/aa57/2002 strain from a. agrarius). genetic analysis of the new isolates revealed that the m and l segments were apparently different between amrv and htnv, but s segments of the two viruses were closer. the ... | 2012 | 22403334 |
| redescription of heligmosomoides neopolygyrus, asakawa and ohbayashi, 1986 (nematoda: heligmosomidae) from a chinese rodent, apodemus peninsulae (rodentia: muridae); with comments on heligmosomoides polygyrus polygyrus (dujardin, 1845) and related species in china and japan. | heligmosomoides neopolygyrus, asakawa and ohbayashi, 1986 (nematoda, heligmosomoidea) is redescribed from apodemus peninsulae from rangtang, sichuan, china. a morphological review of the heligmosomoides spp. belonging to the "polygyrus line" proposed by asakawa (1988) is made using new characters. this enabled us to distinguish two subspecies in mus musculus (heligmosomoides polygyrus bakeri from japan and h. p. polygyrus from china) and two valid species in apodemus spp. (h. neopolygyrus from j ... | 2012 | 23193521 |
| first molecular detection of rickettsia felis-like organism in eulaelaps stabularis from the changbai mountain area of china. | in 557 mites collected from rodents in the changbai mountain area, 3 pools of eulaelaps stabularis from apodemus peninsulae and apodemus agrarius showed a positive result by pcr amplifications of both the citrate synthase encoding gene (glta) and outer membrane protein b encoding gene (ompb) of rickettsia spp. sequence analysis indicated that both glta and ompb shared the high similarity (99%) to rickettsia felis . the data presented in this paper extend the knowledge on the geographic distribut ... | 2015 | 26016589 |
| genetic identification of prey species from teeth in faeces from the endangered leopard cat prionailurus bengalensis using mitochondrial cytochrome b gene sequence. | to understand the dietary ecology of the leopard cat (prionailurus bengalensis), dna analysis was performed to identify prey species using dna isolated from teeth harvested from the faeces of this feline species. from 70 dna samples, a total of 52 mitochondrial dna (mtdna) cytochrome b (cytb) gene sequences of mammals were identified. the results of a sequence identity test indicated that those sequences were derived from four rodent species (apodemus agrarius, apodemus peninsulae, eothenomys re ... | 2017 | 28093009 |
| phylogenetic analysis of the complete mitochondrial genome of the korean field mouse apodemus peninsulae (rodentia, murinae) from china. | we sequenced and characterized a complete mitogenome (kp671850) of the chinese apodemus peninsulae and compared it with a previously published mitogenome of the korean a. peninsulae (nc016060). the total length of the chinese a. peninsulae mitogenome is 16,457 bp. the mitogenome consists of 13 protein-coding genes (pcgs), two rrna (12s rrna and 16s rrna) genes, 22 trna genes, and one d-loop region. the most common start codon was atg, used in the nine pcgs for initiation. the mitogenomes of chin ... | 2016 | 26006285 |
| [seasonal variations of wild apricot seed dispersal and hoarding by rodents in rehabilitated land]. | rodents feed with and disperse plant seeds, which may thereby affect the seed spatiotemporal distribution, germination, and seedling establishment, and eventually play an important role in the restoration of deforested area. taking the state-owned yugong forest farm in jiyuan of henan, china as study site, the tagged seeds of wild apricot (prunus armeniaca) were artificially released in rehabilitated land in the spring, summer, and autumn 2008, aimed to investigate their dispersal and hoarding b ... | 2010 | 20707107 |
| fugong virus, a novel hantavirus harbored by the small oriental vole (eothenomys eleusis) in china. | rodents are natural reservoirs of hantaviruses, which cause two disease types: hemorrhagic fever with renal syndrome in eurasia and hantavirus pulmonary syndrome in north america. hantaviruses related human cases have been observed throughout asia, europe, africa, and north america. to date, 23 distinct species of hantaviruses, hosted by reservoir, have been identified. however, the diversity and number of hantaviruses are likely underestimated in china, and hantavirus species that cause disease ... | 2016 | 26880191 |
| seed trait-mediated selection by rodents affects mutualistic interactions and seedling recruitment of co-occurring tree species. | as mutualists, seed dispersers may significantly affect mutualistic interactions and seedling recruitment of sympatric plants that share similar seed dispersers, but studies are rare. here, we compared seed dispersal fitness in two co-occurring plant species (armeniaca sibirica and amygdalus davidiana) that inhabit warm temperate deciduous forest in northern china. we tested the hypothesis that seed trait-mediated selection by rodents may influence mutualistic interactions with rodents and then ... | 2016 | 26546082 |
| [features of the b chromosome in korean wood mice apodemus peninsulae (thomas, 1906) from transbaikalia and the far east identified by the fish method]. | korean field mice (apodemus peninsulae) are widely distributed throughout northeastern asia, including the russian far east, northern china, the korean peninsula, sakhalin, and hokkaido. this mouse species is characterized by a high frequency of animals with b chromosomes differing in their number, morphology, and dna composition in different geographical regions. for the first time a comparative analysis of dna probes from b chromosomes with metaphase chromosomes of mice from transbaikalia, the ... | 2015 | 26027373 |
| hoarding without reward: rodent responses to repeated episodes of complete cache loss. | for food-hoarding strategies to be maintained in a population, the benefits of hoarding must outweigh the costs. if rewards are too low to offset the costs of hoarding, hoarders might be expected to abandon hoarding and/or shift to an alternative storing strategy (e.g., increase food consumption). however the ability to adjust to such circumstances requires that animals anticipate long-term rewards and adjust storing strategies to modify future outcomes. to test this, we subjected three sympatri ... | 2014 | 24752190 |
| reconsidering the effects of tannin on seed dispersal by rodents: evidence from enclosure and field experiments with artificial seeds. | the question of how tannin affects feeding and hoarding preferences of rodents still remains poorly understood, in part, because it is difficult to control for other seed traits when considering the sole effect of tannin. here, we constructed a series of artificial 'seeds' with different tannin levels, made from wheat flour, peanut powder and hydrolysable tannins, to determine the direct effects of tannin on both feeding and hoarding preferences. we first presented 'seeds' to individual rodents ... | 2013 | 24161819 |
| seed caching and cache pilferage by three rodent species in a temperate forest in the xiaoxinganling mountains. | although differences in food-hoarding tactics both reflect a behavioral response to cache pilferage among rodent species and may help explain their coexistence, differentiation in cache pilfering abilities among sympatric rodents with different hoarding strategies is seldom addressed. we carried out semi-natural enclosure experiments to investigate seed hoarding tactics among three sympatric rodent species (tamias sibiricus, apodemus peninsulae and clethrionomys rufocanus) and the relationship o ... | 2013 | 23389982 |
| two new species of hymenolepis (cestoda: hymenolepididae) from spalacidae and muridae (rodentia) from eastern palearctic. | previously unrecognized species of the genus hymenolepis are described based on specimens from spalacid and murid (murinae) rodents. hymenolepis rymzhanovi sp. nov. from the siberian zokor, myospalax myospalax (laxmann), from east kazakhstan, and h. apodemi sp. nov. from eurasian field mice, apodemus peninsulae (thomas), a. uralensis (pallas) and a. agrarius (pallas), from the south of russian far east, western siberia and south-eastern kazakhstan are characterized. the new species differ from o ... | 2013 | 23377911 |
| [characterization of s gene of a strain of hantavirus isolated from apodemus peninsulae in heilongjiang province]. | in order to study the molecular characterization of the hantavirus isolated from apodemus peninsulae in heilongjiang province, the s gene of a new strain na33 was amplified, sequenced and analyzed. the results showed that the complete nucleotide sequence of the s gene of na33 strain was composed of 1 693 nucleotides with ta-rich. the s gene contained one orf, starting at position 37 and ending at position 1 326, encoding the n protein of 429 amino acid residues, and in line with htn-based coding ... | 2012 | 23233926 |
| complete genome sequence of an amur virus isolated from apodemus peninsulae in northeastern china. | amur virus was recently identified as the causative agent of hemorrhagic fever with renal syndrome. here we report the complete genome sequence of an amur virus isolated from apodemus peninsulae in northeastern china. the sequence information provided here is critical for the molecular epidemiology and evolution of amur virus in china. | 2012 | 23166234 |
| [b chromosome morphotypes of apodemus peninsulae (rodentia) from the russian far east]. | polymorphism of b chromosome morphotypes in the natural populations of the korean field mouse apodemus peninsulae (n = 367) has been studied in five regions of the russian far east: magadan and amur regions, the jewish autonomous region, khabarovsk and primorskii regions. six groups of b chromosome morphotypes have been described on the size and morphological parameters. on the basis of their combinations 78 cell clones have been revealed, 23 of which are found in the animals with a stable karyo ... | 2012 | 22567902 |
| [instability of b-chromosomes in somatic and germline cells of apodemus peninsulae]. | instability of b-chromosomes was estimated in somatic and germline cells of samples apodemus peninsulae from different localities of the species range. in 84 out of 188 animals (45%), in cells assessed for b-chromosome mosaicism, bone marrow cells with different b-chromosome number were observed. the numbers of b-chromosomes in spermatocytes at the pachytene stage were estimated in ten males. it was shown that the average number of b-chromosomes and the number of cell clones in germline cells wa ... | 2008 | 18825959 |
| [the b-chromosome system--a marker of apodemus peninsulae (rodentia, muridae) populations in the baĭkal region]. | karyological studies of 56 apodemus peninsulae mice from 6 points in the neighbourhood of the baikal lake revealed both considerable likeness and difference in the variants of the b-chromosomes system of this species. the mice from the regions situated at a distance of 150 kilometers from each other have similar karyotype variants, which allowed to consider these animals as one geographical population. the mice from the south-west, south pribaikal and south-east regions considerably differ in th ... | 1990 | 2086346 |
| [cytogenetic differentiation of apodemus peninsulae populations (rodentia, muridae) in eastern siberia]. | population and cytogenetics studies of geographical karyotype changes in east asiatic mice in east siberia showed that each population has unique cytogenetic structure, owing to different variants of b-chromosomes system, including 1 to 18 b-chromosomes differing in morphology and size. for each population, we observed the prevalence of mice with a definite number and morphology of b-chromosomes, which is probably the result of homeostatic processes in the population. local changes were revealed ... | 1990 | 2283051 |
| spatial organization of fibroblast and spermatocyte nuclei with different b-chromosome content in korean field mouse, apodemus peninsulae (rodentia, muridae). | korean field mouse (apodemus peninsulae) shows a wide variation in the number of b chromosomes composed of constitutive heterochromatin. for this reason, it provides a good model to study the influence of the number of centromeres and amount of heterochromatin on spatial organization of interphase nuclei. we analyzed the three-dimensional organization of fibroblast and spermatocyte nuclei of the field mice carrying a different number of b chromosomes using laser scanning microscopy and 3d fluore ... | 2017 | 28732174 |
| low-pass single-chromosome sequencing of human small supernumerary marker chromosomes (ssmcs) and apodemus b chromosomes. | supernumerary chromosomes sporadically arise in many eukaryotic species as a result of genomic rearrangements. if present in a substantial part of species population, those are called b chromosomes, or bs. this is the case for 70 mammalian species, most of which are rodents. in humans, the most common types of extra chromosomes, ssmcs (small supernumerary marker chromosomes), are diagnosed in approximately 1 of 2000 postnatal cases. due to low frequency in population, human ssmcs are not conside ... | 2018 | 29380046 |
| exclusion of interspecific competition reduces scatter-hoarding of siberian chipmunk tamias sibiricus: a field study. | although food availability and the abundance of seed predators have been postulated to affect seed dispersal, it is not clear how seed-eating animals modify their scatter-hoarding strategies in response to different levels of interspecific competition. we placed paired germinated and ungerminated acorns of quercus mongolica on 30-cm high platforms to exclude potential interspecific competition of the predominant larder hoarders apodemus peninsulae and myodes rufocanus, to investigate seed disper ... | 2020 | 31631518 |
| effects of tannins on population dynamics of sympatric seed-eating rodents: the potential role of gut tannin-degrading bacteria. | chemical compounds in seeds exert negative and even lethal effects on seed-consuming animals. tannin-degrading bacteria in the guts of small mammals have been associated with the ability to digest seeds high in tannins. at the population level, it is not known if tannins influence rodent species differently according to the composition of their gut microbiota. here, we test the hypothesis that sympatric tree species with different tannins exert contrasting effects on population fluctuations of s ... | 2018 | 29736862 |
| the occurrence of dot-like micro b chromosomes in korean field mice apodemus peninsulae from the shore of the teletskoye lake (altai mountains). | the data on the changes in the cytogenetic structure of the geographic population of korean field mouse apodemus (alsomys) peninsulae thomas, 1907 at the southern shore of the teletskoye lake (altai republic) are presented. in 1980 no dot-like microchromosomes were found in 34 mice captured on the southern and northern coasts of the teletskoye lake. in 2011, a 1.6-fold (from 2.7 to 4.3) increase in the mean number of b chromosomes compared to the rate estimated there earlier in 1980 was discover ... | 2020 | 32194918 |
| context-dependent responses of food-hoarding to competitors in apodemus peninsulae: implications for coexistence among asymmetrical species. | superior species may have distinct advantages over subordinates within asymmetrical interactions among sympatric animals. however, exactly how the subordinate species coexists with superior species is unknown. in the forests west of beijing city, intense asymmetrical interactions of food competition exist among granivorous rodents (e.g. apodemus peninsulae, niviventer confucianus, sciurotamias davidianus and tscherskia triton) that have broadly overlapping habitats and diets but have varied body ... | 2020 | 31773891 |
| b chromosome system in the korean field mouse apodemus peninsulae thomas 1907 (rodentia, muridae). | in this paper, we analyzed b chromosome variation in korean field mouse apodemus peninsulae thomas 1907 (rodentia, muridae) based on a 40-year study of karyotypes collected from geographically distant populations in east siberia, north mongolia, china, the russian far east, and japan (hokkaido). we developed the database of individual variants of b chromosome systems in a. peninsulae. in siberian populations all animals had bs. the karyotypes of the studied animals contain from 1 to 30 вs differ ... | 2018 | 30262791 |