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Drosophila odorant receptors are both ligand-gated and cyclic-nucleotide-activated cation channels
TLDR
It is shown that application of odorants to mammalian cells co-expressing Or22a and Or83b results in non-selective cation currents activated by means of an ionotropic and a metabotropic pathway, and a subsequent increase in the intracellular Ca2+ concentration.
Sequencing of Culex quinquefasciatus Establishes a Platform for Mosquito Comparative Genomics
TLDR
The genomic sequence of C. quinquefasciatus is described, which reveals distinctions related to vector capacities and habitat preferences, and confirmed that inoculation with unfamiliar bacteria prompted strong immune responses in Culex.
Yeast, not fruit volatiles mediate Drosophila melanogaster attraction, oviposition and development
TLDR
It is shown that baker's yeast Saccharomyces cerevisiae on its own is sufficient for fruit fly attraction, oviposition and larval development, and the traditional plantherbivore niche concept needs to be updated, to accommodate for the role of micro-organisms in insectplant interactions.
Sex pheromone production and perception in European corn borer moths is determined by both autosomal and sex-linked genes.
TLDR
Investigation of inheritance patterns in pheromonally distinct populations of European corn borers from New York State supports speculation that the Z morph is the ancestral and that the E Morph is the derived European corn borer population.
Evolution of insect olfactory receptors
TLDR
The olfactory system of the primary wingless bristletail Lepismachilis y-signata, the firebrat Thermobia domestica and the neopteran leaf insect Phyllium siccifolium is investigated, suggesting that ORs arose as an adaptation to a terrestrial lifestyle, but evolved later in insect evolution, with Orco being present before the appearance of ORs.
Orchid pollination by sexual swindle
TLDR
It is found that flowers of O. sphegodes produce the same compounds and in similar relative proportions as are found in the sex pheromone of its pollinator species, the solitary bee Andrena nigroaenea.
Evolution of Insect Olfaction
Neuronal architecture of the mosquito deutocerebrum
TLDR
A detailed description of the neural structure of the primary target of the majority of these neurons, the deutocerebrum, in the African malaria (Anopheles gambiae) and yellow fever (Aedes aegypti) mosquitoes is presented.
Antennal transcriptome of Manduca sexta
TLDR
The use of transcriptomic and microarray data is presented to identify members of the main olfactory gene families of Manduca sexta and compares the expression of the near-complete transcript sets in male and female antennae.
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