Insecticide Resistance Genetics
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Liaisons dangereuses: cross-border gene flow and dispersal of insecticide resistance-associated genes in the mosquito Aedes aegypti from Brazil and French Guiana
BACKGROUND In recent years, South America has suffered the burden of continuous high impact outbreaks of dengue, chikungunya and Zika. Aedes aegypti is the main mosquito vector of these arboviruses and its control is the only solution to reduce transmission. OBJECTIVES In order to improve vector control it is essential to study mosquito population geneti
Mem. Inst. Oswaldo Cruz. Publicado em: 23/09/2019
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2. Mathematical modelling of vector-borne diseases and insecticide resistance evolution
Abstract Background: Vector-borne diseases are important public health issues and, consequently, in silico models that simulate them can be useful. The susceptible-infected-recovered (SIR) model simulates the population dynamics of an epidemic and can be easily adapted to vector-borne diseases, whereas the Hardy-Weinberg model simulates allele frequencies a
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 08/02/2018
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3. Interação molecular planta-nematóide.
ABSTRACT: The endoparasitic sedentary phytonematodes of genera Heterodera, Globodera (known as cyst nematodes, CN) and Meloidogyne (the root-knot nematodes, RKN) are major crop phytopathogens, causing estimated losses of US$ 125 billion annually in the world. These plant-parasitic nematodes share some parasitism mechanisms, which ensure host-tissue invasion
Planaltina. Publicado em: 2011
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4. Analyze of molecular differentiation among Anopheles (Kerteszia) cruzi Brazilian populations using a multilocus approach (Diptera: Culicidae) / Análise da diferenciação molecular entre populações brasileiras de Anopheles (Kerteszia) cruzii utilizando uma abordagem multilocus (Diptera: Culicidae)
Anopheles (Kerteszia) cruzii (Diptera: Culicidae) has long been known as the primary vector of human and simian malaria parasites in southern and southeastern Brazil. The distribution of this mosquito follows the coast of the Brazilian Atlantic forest. Previous studies have suggested that An. cruzii is a complex of cryptic species. In the current study, a fr
Publicado em: 2009
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5. Voltage gated sodium channel gene diversity of Aedes aegypti Linnaeus, 1762 (Diptera: Culicidae) and pyrethroid resistance / Diversidade do gene de canal de sódio regulado por voltagem de Aedes aegypti Linnaeus, 1762 (Diptera: Culicidae) e resistência a piretróide
No Brasil o controle das formas aladas do vetor de dengue, o mosquito Aedes aegypti, é feito com inseticidas da classe dos piretróides. Porém, apesar da recente utilização deste composto em escala nacional, várias populações do vetor já estão resistentes. O canal de sódio regulado por voltagem, no sistema nervoso do inseto, é a molécula-alvo de
Publicado em: 2009
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6. Genetic divergence between two sympatric species of the Lutzomyia longipalpis complex in the paralytic gene, a locus associated with insecticide resistance and lovesong production
The sandfly Lutzomyia longipalpis s.l. is the main vector of American Visceral Leishmaniasis. L. longipalpis s.l. is a species complex but until recently the existence of cryptic sibling species among Brazilian populations was a controversial issue. A fragment of paralytic (para), a voltage dependent sodium channel gene associated with insecticide resistance
Memórias do Instituto Oswaldo Cruz. Publicado em: 2008-11
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7. Susceptibility to deltamethrin and molecular variability of Spodoptera frugiperda (Lepidoptera: Noctuidae) populations collected at the cotton and maize crops in Brasil / Suscetibilidade a deltametrina e variabilidade molecular em populações de Spodoptera frugiperda (Lepidoptera: Noctuidae) coletadas nas culturas do algodoão e milho no Brasil
Com a crescente expansão de cultivos agrícolas no Brasil, tem sido bastante comum o sistema de produção de algodão e milho em uma mesma região. Como uma possível conseqüência deste sistema de cultivo, os problemas com Spodoptera frugiperda (J. E. Smith) têm aumentado nestas duas culturas nos últimos anos. Assim, para o estabelecimento de um manejo
Publicado em: 2006
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8. Functional haplodiploidy: a mechanism for the spread of insecticide resistance in an important international insect pest.
The coffee berry borer, Hypothenemus hampei, is the most important insect pest of coffee worldwide and has an unusual life history that ensures a high degree of inbreeding. Individual females lay a predominantly female brood within individual coffee berries and because males are flightless there is almost entirely full sib mating. We investigated the genetic
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9. A single-amino acid substitution in a gamma-aminobutyric acid subtype A receptor locus is associated with cyclodiene insecticide resistance in Drosophila populations.
Resistance to cyclodiene insecticides, documented in at least 277 species, is perhaps the most common kind of resistance to any pesticide. By using cyclodiene resistance to localize the responsible gene, a gamma-aminobutyric acid type A receptor/chloride ion-channel gene was previously cloned and sequenced from an insecticide-susceptible Drosophila melanogas
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10. Isolation and sequence of cDNA encoding a cytochrome P-450 from an insecticide-resistant strain of the house fly, Musca domestica.
A cDNA expression library from phenobarbital-treated house fly (Musca domestica) was screened with rabbit antisera directed against partially purified house fly cytochrome P-450. Two overlapping clones with insert lengths of 1.3 and 1.5 kilobases were isolated. The sequence of a 1629-base-pair (bp) cDNA was obtained, with an open reading frame (nucleotides 8