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Insect bristles are model mechanosensory organs. An ion channel of the TRP superfamily has recently been identified which is required for production of mechanoreceptor currents by insect bristles, and seems likely to represent a new kind of mechanically gated channel.
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http://dx.doi.org/10.1016/s0960-9822(00)00478-4 | DOI Listing |
Development
March 2025
Department of Biological Sciences, The George Washington University, Washington, DC 20052, USA.
The success of butterflies and moths is tightly linked to the origin of scales within the group. A long-standing hypothesis postulates that scales are homologous to the well-described mechanosensory bristles found in the fruit fly Drosophila melanogaster, as both derive from an epithelial precursor. Previous histological and candidate gene approaches identified parallels in genes involved in scale and bristle development.
View Article and Find Full Text PDFArthropod Struct Dev
January 2025
Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Institute of Entomology, Guizhou University, Guiyang, 550025, PR China. Electronic address:
Due to caves' environmental features (e.g., darkness and food limitation), cave-dwelling insects have evolved well-developed sensory systems.
View Article and Find Full Text PDFJ Vis Exp
January 2025
Laboratory of Innovational Biology, Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo;
Over the past decades, significant progress has been made in understanding the mechanisms of cell fate determination. However, the process by which fate-determined cells form three-dimensional organismal shapes remains unclear. Recent advances in confocal microscopy have facilitated efforts to observe cell dynamics during development through live imaging.
View Article and Find Full Text PDFAnnu Rev Entomol
January 2025
Department of Biology and Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico.
Novel traits in the order Lepidoptera include prolegs in the abdomen of larvae, scales, and eyespot and band color patterns in the wings of adults. We review recent work that investigates the developmental origin and diversification of these four traits from a gene-regulatory network (GRN) perspective. While prolegs and eyespots appear to derive from distinct ancestral GRNs co-opted to novel body regions, scales derive from in situ modifications of a sensory bristle GRN.
View Article and Find Full Text PDFParasitol Int
June 2025
Department of Fundamental Chemistry, Center for Natural Sciences, Federal University of Pernambuco, Av. Jorn. Aníbal Fernandes, s/n - Cidade Universitária, 50740-560 Recife, Pernambuco, Brazil. Electronic address:
Dengue is a viral disease present in many regions of the world. Aedes aegypti transmits it, and the most effective way to eliminate the mosquito is during the larval stage. Seaweeds possess metabolites with insecticidal properties, making them potential sources of new larvicides and viable alternatives to synthetic products used to control insect vectors of diseases.
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