| evidence for ribosomal frameshifting and a novel overlapping gene in the genomes of insect-specific flaviviruses. | flaviviruses have a positive-sense, single-stranded rna genome of approximately 11 kb, encoding a large polyprotein that is cleaved to produce approximately 10 mature proteins. cell fusing agent virus, kamiti river virus, culex flavivirus and several recently discovered flaviviruses have no known vertebrate host and apparently infect only insects. we present compelling bioinformatic evidence for a 253-295 codon overlapping gene (designated fifo) conserved throughout these insect-specific flavivi ... | 2010 | 20097399 |
| detection of flaviviruses and orthobunyaviruses in mosquitoes in the yucatan peninsula of mexico in 2008. | a total of 191,244 mosquitoes from 24 species were collected in the yucatan peninsula of mexico from january to december 2008, and tested for the presence of cytopathic virus by virus isolation in vero cells. eighteen virus isolates were obtained, all of which were orthobunyaviruses. these were identified by reverse transcription-polymerase chain reaction (rt-pcr) and nucleotide sequencing as cache valley virus (n=17) and south river virus (n=1). a subset (n=20,124) of culex quinquefasciatus col ... | 2010 | 20370430 |
| isolation and sequence analysis of culex flavivirus from culex interrogator and culex quinquefasciatus in the yucatan peninsula of mexico. | previously, we reported a high prevalence of culex flavivirus (cxfv) in culex quinquefasciatus (say) in the yucatan peninsula of mexico. to determine whether other culex spp. mosquitoes in this region are susceptible to natural cxfv infection, cx. bahamensis (dyar and knab), cx. coronator (dyar and knab), cx. interrogator (dyar and knab), cx. nigripalpus (theobald) and cx. opisthopus (komp) in the yucatan peninsula of mexico were tested for cxfv. two pools of cx. interrogator were positive. the ... | 2010 | 20379749 |
| continuity and change of japanese encephalitis virus in toyama prefecture, japan. | abstract. to determine the mechanisms of maintenance and evolution of japanese encephalitis virus (jev) in a temperate zone, we attempted to isolate jev from mosquitoes and pigs in toyama prefecture, japan. a total of 87 jevs were isolated from female culex tritaeniorhynchus mosquitoes and pigs during 2005-2009. the prevalence of jev in toyama prefecture was seasonally late in comparison with that of the virus during 1966-1972. furthermore, jevs were isolated after the peak in the number of fema ... | 2011 | 21540378 |
| Molecular evolution of the insect-specific flaviviruses. | There has been an explosion in the discovery of 'insect-specific' flaviviruses and/or their related sequences in natural mosquito populations. Herein we review all 'insect-specific' flaviviral sequences currently available and conduct phylogenetic analyses of both the 'insect-specific' flaviviruses and available sequences of the entire genus Flavivirus. We show that there is no statistical support for virus-mosquito co-divergence, suggesting that the 'insect-specific' flaviviruses may have under ... | 2011 | 22012464 |
| detection of a new insect flavivirus and isolation of aedes flavivirus in northern italy. | during recent years, numerous novel 'insect flaviviruses' have been discovered in natural mosquito populations. in a previous study we described the presence of flavivirus dna sequences integrated in aedes albopictus (asian tiger mosquito) populations from northern italy in 2007. | 2012 | 23043958 |
| brugian filariasis in japan. | | 0 | 22028598 |
| variation in cold hardiness of nondiapausing eggs of nine aedes (stegomyia) species (diptera: culicidae) from eastern asia and pacific islands ranging from the tropics to the cool-temperate zone. | variation in cold hardiness was studied in the laboratory for the nondiapausing eggs of nine aedes (stegomyia) species from eastern asia and pacific islands, ranging from the tropics to the cool-temperate zone. species included were aedes aegypti (l.), aedes albopictus (skuse), aedes flavopictus yamada, aedes galloisi yamada, aedes hensilli farner, aedes palauensis bohart, aedes paullusi stone and farner, aedes riversi bohart and ingram, and aedes scutellaris (walker). for species with distribut ... | 2011 | 21485356 |
| organization of a cloned repetitive dna fragment in mosquito genomes (diptera: culicidae). | the structure and genomic organization of a cloned 5.2-kb repetitive dna fragment, h-85, isolated from the aedes albopictus genome have been examined. in situ hybridization of the 3h-labeled h-85 dna to the meiotic and mitotic chromosome preparations of ae. albopictus shows that the sequences homologous to h-85 dna are dispersed throughout the length of all three pairs of chromosomes. a similar pattern of in situ hybridization appears in aedes seatoi, aedes flavopictus, and aedes aegypti. the st ... | 1991 | 1685722 |
| globally invasive, withdrawing at home: aedes albopictus and aedes japonicus facing the rise of aedes flavopictus. | it has been suggested that climate change may have facilitated the global expansion of invasive disease vectors, since several species have expanded their range as temperatures have warmed. here, we present results from observations on two major global invasive mosquito vectors (diptera: culicidae), aedes albopictus (skuse) and aedes japonicus (theobald), across the altitudinal range of mt. konpira, nagasaki, japan, a location within their native range, where aedes flavopictus yamada, formerly a ... | 2016 | 27039106 |
| the aquatic communities inhabiting internodes of two sympatric bamboos in argentinean subtropical forest. | in order to determine if phytotelmata in sympatric bamboos of the genus guadua might be colonized by different types of arthropods and contain communities of different complexities, the following objectives were formulated: (1) to analyze the structure and species richness of the aquatic macroinvertebrate communities, (2) to comparatively analyze co-occurrences; and (3) to identify the main predators. field studies were conducted in a subtropical forest in argentina, where 80 water-filled bamboo ... | 0 | 24224775 |
| isolation and characterization of a new insect flavivirus from aedes albopictus and aedes flavopictus mosquitoes in japan. | we isolated a new flavivirus from aedes albopictus mosquito and a related species in japan. the virus, designated aedes flavivirus (aefv), only replicated in a mosquito cell line and produced a mild cytopathic effect. the aefv genome was positive-sense, single-stranded rna, 11,064 nucleotides in length and contained a single open reading frame encoding a polyprotein of 3341 amino acids with 5' and 3' untranslated regions (utrs) of 96 and 945 nucleotides, respectively. genetic and phylogenetic an ... | 2009 | 19580982 |
| interactions between coexisting intracellular genomes: mitochondrial density and wolbachia infection. | many arthropods are infected with maternally transmitted microorganisms, leading to the coexistence of several intracellular genomes within the host cells, including their own mitochondria. as these genomes are cotransmitted, their patterns of evolution have been intimately linked, with possible consequences for the diversity and evolution of the host mitochondrial dna. the evolutionary aspects of the situation have been thoroughly investigated, especially the selective sweep on the mitochondria ... | 2009 | 19181828 |
| detection of aedes flavopictus (yamada, 1921), netherlands, june 2019. | in june 2019, a single specimen collected at a used tyre company was identified as aedes flavopictus (yamada, 1921), a sibling species of ae. albopictus. ae. flavopictus has not been recorded outside japan and south korea. although it has only shown dengue virus vector competence under laboratory conditions, its detection demonstrates the value of active surveillance at risk locations and molecular tools for timely intervention against exotic mosquitoes with potential future public health impact ... | 2019 | 31362811 |
| investigation of the aedes (stegomyia) flavopictus complex (diptera: culicidae) in japan by sequence analysis of the internal transcribed spacers of ribosomal dna. | aedes (stegomyia) flavopictus yamada is widely distributed in japan and korea. the species comprises three subspecies based on current morphological taxonomy: aedes flavopictus in the palearctic region of japan, ae. f downsi bohart & ingram from amami and okinawa islands, and ae. f miyarai tanaka, mizusawa & ingram from ishigaki and iriomote islands of the ryukyu archipelago. these subspecies designations are based on observations of a combination of several morphological characters, none of whi ... | 2002 | 12061441 |
| mosquito species (diptera: culicidae) persistence and synchrony across an urban altitudinal gradient. | patterns of mosquito spatial persistence and temporal presence, as well as synchrony, i.e., the degree of concerted fluctuations in abundance, have been scarcely studied at finely grained spatial scales and over altitudinal gradients. here, we present a spatial persistence, temporal presence, and synchrony analysis of four common mosquito species across the altitudinal gradient of mt. konpira in nagasaki, japan. we found that aedes albopictus (skuse) was more frequently found at the mountain bas ... | 2017 | 28025246 |