| [genetic distance of the malarial mosquitoes, anopheles beklemishevi and anopheles messeae (diptera, culiccidae), and their intraspecific polymorphism]. | allele frequencies at enzyme loci have been studied in finnish populations of two species of the anopheles maculipennis complex: a. beklemishevi and a. messeae. a. beklemishevi is spread over central and northern finland, whereas a. messeae is found in southwestern and central finland. the allele frequencies of these two species exhibit both similarities and differences. the results indicate that the two species do not interbreed in the nature. the allele frequencies at two loci--hydroxybutyrate ... | 1979 | 510915 |
| [anopheles maculipennis northeastern and anopheles beklemishevi southwestern distribution areas' borders]. | distribution of an. maculipennis and an. beklemishevi in the upper volga area was investigated. species discrimination was based on the study of polytene chromosomes. the examined material included about 2000 larva and imago from 11 localities, namely: andropov, yaroslavl, rostov (yaroslavl.), solnechnogorsk, protvino (moscow region), suzdal, murom (two localities), joshkar-ola, zelenodolsk, kujbyshev. it appears to be a 700 x 200 km intergradation zone between the species distribution areas. | 1989 | 2523510 |
| seasonal activity of mosquitoes in an ockelbo disease endemic area in central sweden. | in the sässman area, province of hälsingland, sweden, mosquitoes were sampled in 1983 from aquatic habitats, overwintering sites, cattle sheds, human bait, with uv-light traps, rabbit-, guinea-pig-, hen-, dove- and unbaited suction traps and similarly baited net traps. anopheles beklemishevi, an. messeae, aedes cantans, ae. cataphylla, ae. cinereus, ae. communis, ae. diantaeus, ae. excrucians, ae. hexodontus, ae. intrudens, ae. leucomelas, ae. pionips, ae. punctor, ae. vexans, culex pipiens, cx. ... | 1986 | 2906960 |
| endemic malaria: an 'indoor' disease in northern europe. historical data analysed. | endemic northern malaria reached 68 degrees n latitude in europe during the 19th century, where the summer mean temperature only irregularly exceeded 16 degrees c, the lower limit needed for sporogony of plasmodium vivax. because of the available historical material and little use of quinine, finland was suitable for an analysis of endemic malaria and temperature. | 2005 | 15847704 |
| the its2 ribosomal dna of anopheles beklemishevi and further remarks on the phylogenetic relationships within the anopheles maculipennis group of species (diptera: culicidae). | anopheles beklemishevi specimens from russia were analysed by their its2 ribosomal dna sequence to amend and to specify the phylogenetic tree of the anopheles maculipennis species complex. surprisingly, with 638 base pairs, the its2 regions of all the 34 an beklemishevi specimens examined were considerably longer than those of all their sibling species. sequence alignment with genbank derived sequences of the other siblings was only possible in the beginning (for approx. 335 bp) and at the end ( ... | 2005 | 15986250 |
| molecular identification of palearctic members of anopheles maculipennis in northern iran. | members of anopheles maculipennis complex are effective malaria vectors in europe and the caspian sea region in northern iran, where malaria has been re-introduced since 1994. the current study has been designed in order to provide further evidence on the status of species composition and to identify more accurately the members of the maculipennis complex in northern iran. | 2007 | 17233887 |
| natural relapses in vivax malaria induced by anopheles mosquitoes. | monthly malaria cases in finland during 1750-1850 revealed regionally different peaks. the main peak was in late spring in the whole country, but additional peaks occurred in august and december in some regions of finland. both primary infections and relapses caused deaths from malaria. the cause and timing of relapses are analysed. | 2008 | 18430203 |
| the decline of malaria in finland--the impact of the vector and social variables. | malaria was prevalent in finland in the 18th century. it declined slowly without deliberate counter-measures and the last indigenous case was reported in 1954. in the present analysis of indigenous malaria in finland, an effort was made to construct a data set on annual malaria cases of maximum temporal length to be able to evaluate the significance of different factors assumed to affect malaria trends. | 2009 | 19422702 |
| [inversion polymorphism of the malaria mosquito anopheles messeae. viii. distribution of larvae in biotopes under conditions of co-habitation with anopheles beklemishevi]. | the role of chromosomal variability was studied in the process of biotopical distribution of larvae of the sibling species anopheles messeae and a. beklemishevi. it is shown that frequency of the inversions xl1, xl2, 2r1, 3r1 of a. messeae was changed in the lakes with different larval quantity of the sibling species. mosquito of a. beklemishevi were developed in the suboptimal biotops having low larwal quantity of a. messeae with the analogous chromosomal arrangement 2r1. the larvae with "north ... | 2009 | 2737465 |
| functional constraints and evolutionary dynamics of the repeats in the rdna internal transcribed spacer 2 of members of the anopheles barbirostris group. | the anopheles barbirostris group is widely distributed in southeast asia. although seven species have been formally described, a molecular analysis of the rdna its2 and the mitochondrial cytochrome oxidase i gene suggests that the group includes species that are morphologically very similar or identical.we have previously shown that species in the anopheles barbirostris subgroup have an exceptionally large its2 (>1.5 kb), greater than in any other anopheline group. however, the molecular process ... | 2014 | 24646478 |
| variation in number and formation of repeat sequences in the rdna its2 region of five sibling species in the anopheles barbirostris complex in thailand. | repeat sequences of approximately 100 base pairs in length were found in the rdna its2 region of anopheles barbirostris van der wulp (diptera: culicidae) species a1, a2, a3, a4, and an. campestris-like in the an. barbirostris complex. variation in the number of repeats was observed among the five sibling species. specifically, 10 repeats were observed in a1, eight in a2, a4, and campestris-like, and three in a3. based on similarities in the sequences of the repeats, related repeats were classifi ... | 0 | 22233453 |
| expansion of anopheles maculipennis s.s. (diptera: culicidae) to northeastern europe and northwestern asia: causes and consequences. | the burden of malaria infection in the modern world remains significant. specific changes in the relative proportions of malaria vector mosquitoes, maculipennis complex species, in the south of western siberia over the past 25 years of the 20th century have attracted wide attention as an indicator of their dynamic geographical distribution. in eurasia, studies of fluctuations in the borders of areas occupied by sibling species of this complex, as well as their relative proportions in the areas w ... | 2014 | 25148893 |
| [molecular cytogenetic analysis of dna from pericentric heterochromatin of chromosome 2l of malaria mosquito anopheles beklemishevi (culicidae, diptera)]. | using the method of microdissection of polytene chromosomes, followed by in situ hybridization, chromosomal localization of region-specific dna probe from pericentic heterochromatin of chromosome 2l of anopheles beklemishevi stegnii et kabanova was examined on polytene chromosomes of anopheles atroparvus van thiel, an. messeae fall, and an. beklemishevi. dna sequences homologous to the probe used were found in all species examined on chromosomes 2 and 3 in pericentric regions and in attachment r ... | 2009 | 19239098 |
| rearing of anopheles beklemishevi (diptera: culicidae) and the possibility of its hybridization with an. atroparvus under laboratory conditions. | | 2016 | 27860014 |
| on the ecology and range of anopheles beklemishevi (diptera: culicidae) with reference to the taxonomy of an. lewisi. | the ecological features and geographic distribution of anopheles beklemishevi have not been studied extensively. these studies are important in connection with the validity of the 'anopheles lewisi' taxon. the materials were collected in russia and kazakhstan from 1973 to 2012, and species identity was defined by cytogenetic analysis of polytene chromosomes of larvae and adult females. a total of 7,896 specimens from 34 geographic locations was included in the analysis. it was established that a ... | 2016 | 27860006 |
| [morphological and genetic characteristics of the malarial mosquito anopheles beklemishevi (diptera, culicidae)]. | the paper presents morphological and genetic data on the malarial mosquito anopheles beklemishevi stegnii et kabanova, 1976. it also provides morphological accounts of eggs, age stage iv larvae, and, firstly, pupae and imagoes. the paper considers it possible to use cytogenetic and molecular markers to identify an. beklemishevi. | 2015 | 17436729 |
| integration of anopheles beklemishevi (diptera: culicidae) in a pcr assay diagnostic for palaearctic anopheles maculipennis sibling species. | a few years ago a pcr-based assay for a quick and reliable identification of six palaearctic sibling species of the anopheles maculipennis complex was presented making use of differences in the nucleotide sequence of the its2 ribosomal mosquito dna. an. beklemishevi, which is distributed in scandinavia and russia only, has now been integrated into this test after analysis of its its2 region which turned out to be much longer than those of the other sibling species. three oligonucleotides putativ ... | 2005 | 15986251 |
| [crepidulospora--nomen novum for the junior generic homonym (preoccupied generic name) crepidula]. | crepidulospora nom. nov. is a replacement generic name for the genus crepidula simakova, pankova et issi, 2003 based on the type species crepidula beklemishevi simakova, pankova et issi, 2003 (microsporida) from anopheles beklemishevi. the name proposed by simakova et al., 2003 is a preoccupied name, because it was already used for the gastropode crepidula lamarque 1899 (echinospirida, calibraeidae), a parasite of mytilus. a valid name of the type species of the genus is now crepidulospora bekle ... | 2007 | 15553777 |
| [crepidula beklemishevi gen. et sp. n. and dimeiospora palustris gen. et sp. n. (microspora: amblyosporidae)--new microsporidian genera and species from blood-sucking mosquitoes (diptera: culicidae) from the south of the western siberia]. | microsporidia parasitizing the adipose body of mosquito larvae of anopheles beklemishevi and aedes punctor has been studied. two new genera of microsporidia are described based on lightmicroscopic and ultrastructural characteristics of spores and sporogony stages. the spore wall of crepidula beklemishevi gen. n. et sp. n. is formed by two-membrane exospore, thick exospore, bilayer endospore and thin plasmolemma. spores with single nucleus, polar filament anisofilar, with 6-7 coils (2+ 4-5), pola ... | 2007 | 12815817 |
| [escape reactions and variation in some genetic parameters in larva from the malaria mosquito anopheles messeae]. | the relationship between the escape response and four types of variations--inversion polymorphism, the number of denses in the stigmal plate ridges, their asymmetry, and stripe-nonstripe variation--was studied in larvae of malaria mosquito anopheles messeae fall. from natural populations. pigmented individuals were shown to have a more reduced responce than nonpigmented ones. asymmetry declined in the direction from unresponsive larvae to those repeatedly (responded). number of denses was lower ... | 1998 | 9719922 |
| [resistance to hunger as an element of the adaptive strategy of malaria mosquito larva]. | mortality from starvation in larvae of malaria mosquito species anopheles beklemishevi, a. messeae, and a. sinensis (diptera, culicidae) was compared. the results showed that the southern species. a. sinensis is more resistant to starvation and more competitive than a. messeae, the species with chromosome polymorphism. mortality of larvae increased when they starved in groups. starving a. messeae larvae with "southern" inversions (k-strategists) proved to be more viable than larvae with "norther ... | 1997 | 9289423 |