| chromosomal localization and copy number of 18s + 28s ribosomal rna genes in evolutionarily diverse mosquitoes (diptera, culicidae). | in situ hybridization using 3h-labeled 18s and 28s ribosomal dna (rdna) probes from aedes albopictus was performed on the mitotic chromosomes of 20 species of mosquitoes belonging to 8 genera of subfamilies culicinae and anophelinae. in all but one species examined, the rdna family was localized to a single chromosome per haploid genome. aedes triseriatus was the only exception, with the rdna cistrons present on chromosome 1 and on chromosome 3. the ribosomal rna genes were located on chromosome ... | 1990 | 2093704 |
| importation of aedes albopictus and other exotic mosquito species into the united states in used tires from asia. | between may 18 and december 4, 1986, 79 seagoing containers and their contents of 22,051 used tires were inspected for adult mosquitoes as well as eggs and larvae. of the total inspected, 5,507 tires (25%) contained significant amounts of water. no adults or eggs were found. fifteen tires contained mosquito larvae that were identified as ae. albopictus, ae. togoi, culex pipiens complex, tripteroides bambusa and uranotaenia bimaculata. the infestation rate for all species was 6.8 infested tires p ... | 1988 | 2903907 |
| getah virus in several species of mosquitoes. | vector competence of aedes (ae.) vexans nipponii (nip.) and culex (cx) tritaeniorhynchus for getah virus was compared after incubation at 28 degrees c and 20 degrees c. marked differences existed between ae. vexans nip. strains sapporo and cx tritaeniorhynchus strain kyoto in infection and transmission rates following ingestion of blood meals containing several concentrations of getah virus. simultaneous comparison of infectivity also revealed that infection rates of ae. vexans nip. strains sapp ... | 1985 | 4082267 |
| japanese aedes albopictus among four mosquito species reaching new zealand in used tires. | since a 1988-89 survey of northern new zealand revealed no additions to the known mosquito fauna, this country's used tire importations have much increased. relevant entomological quarantine was thus monitored in a november 1992-january 1993 auckland project, during which almost 1/3 of 8,549 casings from japan proved wet on inspection. in this study and at 2 south island ports afterwards, 5 vessels from japan and one from australia were found to have brought in mosquito-infested used tires. live ... | 1994 | 8014623 |
| satellite dna from the y chromosome of the malaria vector anopheles gambiae. | satellite dna is an enigmatic component of genomic dna with unclear function that has been regarded as "junk." yet, persistence of these tandem highly repetitive sequences in heterochromatic regions of most eukaryotic chromosomes attests to their importance in the genome. we explored the anopheles gambiae genome for the presence of satellite repeats and identified 12 novel satellite dna families. certain families were found in close juxtaposition within the genome. six satellites, falling into t ... | 2005 | 15466420 |
| yeast-generated co2 as a convenient source of carbon dioxide for adult mosquito sampling. | a new, convenient method was developed to supply co2 for mosquito sampling by using yeast, which converts sugar into co2 and ethyl alcohol. the system could, at average, generate 32.4 ml/min of co2 for at least 27 h. the total weight of the co2 generated was estimated to be 94 g. the efficacy of yeast-generated co2 as attractant for mosquitoes was significant, and the following 6 mosquito species were collected using yeast-generated co2 traps from july to september 2003 in a residential area of ... | 2004 | 15532924 |
| a recent survey of mosquito fauna in guangdong province,southern china, with a review of past records [corrected]. | the southern province of guangdong has long been subject to endemic mosquito-borne diseases. in recent years, this region of china has experienced rapid, extensive economic development involving environmental change, making much of the scant knowledge of its mosquito fauna obsolete. this paper reviews previous mosquito surveys, some of which may be too old to be of relevance to present-day conditions, and presents the results of a recent survey of adult and immature mosquitoes. the main vectors ... | 2008 | 19120964 |
| seasonal prevalence of mosquitoes, including vectors of brugian filariasis, in southern islands of the republic of korea. | a survey of mosquitoes, including the vector status of brugia malayi filariasis and their relative larval density, was conducted from 2002 to 2005 at several southern remote islands of jeollanam-do (province), gyeongsangnam-do, and jeju-do, korea, where filariasis was previously endemic. overall, a total of 9 species belonging to 7 genera were collected. ochlerotatus togoi (formerly known as aedes togoi), anopheles (hyrcanus) group, and culex pipiens were the predominant species captured at all ... | 2011 | 21461270 |
| 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 |
| detection of japanese encephalitis virus genotype v in culex orientalis and culex pipiens (diptera: culicidae) in korea. | japanese encephalitis virus (jev) causes significant viral encephalitis and is distributed throughout the asian countries. the virus is known to be transmitted by culex tritaeniorhynchus, which mainly breeds in rice paddies in korea. in this study, we investigated the presence of other mosquito species that can transmit jev as a second or regional vector. we selected five cities where patients have experienced je in the last 5 years as mosquito-collecting locations and subdivided them into four ... | 2015 | 25658839 |
| species interactions among larval mosquitoes: context dependence across habitat gradients. | biotic interactions involving mosquito larvae are context dependent, with effects of interactions on populations altered by ecological conditions. relative impacts of competition and predation change across a gradient of habitat size and permanence. asymmetrical competition is common and ecological context changes competitive advantage, potentially facilitating landscape-level coexistence of competitors. predator effects on mosquito populations sometimes depend on habitat structure and on emerge ... | 0 | 19067629 |
| phylogenetic analysis and temporal diversification of mosquitoes (diptera: culicidae) based on nuclear genes and morphology. | phylogenetic analyses provide a framework for examining the evolution of morphological and molecular diversity, interpreting patterns in biogeography, and achieving a stable classification. the generic and suprageneric relationships within mosquitoes (diptera: culicidae) are poorly resolved, making these subjects difficult to address. | 2009 | 20028549 |
| comparison of life history characteristics of the genetically modified ox513a line and a wild type strain of aedes aegypti. | the idea of implementing genetics-based insect control strategies modelled on the traditional sit (sterile insect technique), such as ridl (release of insects carrying a dominant lethal), is becoming increasingly popular. in this paper, we compare a genetically modified line of aedes aegypti carrying a tetracycline repressible, lethal positive feedback system (ox513a) with a genetically similar, unmodified counterpart and their respective responses to increasing larval rearing density using a co ... | 2011 | 21698096 |
| conservation of a highly repeated dna family of aedes albopictus among mosquito genomes (diptera: culicidae). | the genomic organization and chromosomal localization of a cloned 0.79-kb highly repeated dna fragment, h-115, isolated from aedes albopictus has been examined. the cloned fragment is a part of a larger unit of 1.86 kb that is tandemly repeated in the ae. albopictus genome. the h-115 family of sequences are located at the intercalary position on chromosome 1 in ae. albopictus. similar patterns of in situ and southern blot hybridization results are obtained in ae. aegypti, ae. seatoi, ae. flavopi ... | 1992 | 24202672 |
| habitat size: a factor determining the opportunity for encounters between mosquito larvae and aquatic predators. | occurrence patterns of mosquito immatures and insect predators in containers of various sizes were surveyed in summer (june-july) and autumn (september) of 1998 in a rural area of saga, southwestern japan. mosquitoes were categorized into three types in relation to habitat size. first, aedes (stegomyia) spp. and tripteroides bambusa occurred mostly in small containers of < 0.1 m2. second, ae. japonicus and culex kyotoensis occurred in larger container sizes, compared with the first group. third, ... | 2002 | 12125876 |
| overwintering in the bamboo mosquito tripteroides bambusa (diptera: culicidae) during a warm, but unpredictably changing, winter. | the bamboo mosquito, tripteroides bambusa (yamada) (diptera: culicidae), is a common insect across forested landscapes in japan. several studies have reported its overwintering as larvae and eggs, in both natural and artificial water containers. nevertheless, it is unclear how sensitive this mosquito species is to changes in weather patterns associated with global warming. the el niño event of 2015 through 2016 was one of the strongest on record and provided an ideal scenario for observations on ... | 2017 | 29293910 |