Articles tagged with Drosophila
Researchers found that fruit flies use a small, bright spot (the simulated sun) as a landmark to fly straight with respect to its position. The study also shows that these flies have compass neurons in their brains associated with this navigational behavior.
Researchers at Kumamoto University have identified a new mechanism linking cytoskeletal dynamics and Wnt5a signaling, essential for planar cell polarity formation. This control system regulates the morphology and orientation of cells in animal tissues, crucial for tissue morphogenesis.
Researchers found that fruit fly species from different backgrounds can communicate more effectively when they cohabitate and learn each other's visual and scent cues. The study suggests that variation in communication ability between species may be analogous to dialects, which can be alleviated through socialization.
Researchers at Osaka University have clarified the cellular mechanism behind left-right asymmetric organ morphogenesis using live imaging and computer simulations. The team discovered that 'cell sliding' is essential for this process, which may lead to breakthroughs in regenerating organs with tubular structures.
Researchers have developed a new tool that can work in both non-reproductive cells and egg-producing cells using the Gal4/UAS two-component activation system. The UASz vector has been shown to express about 4 times higher than UASp in the egg-producing system, overcoming previous limitations.
Researchers at UC San Diego have developed a gene drive system targeting the invasive spotted-wing drosophila, a fruit fly causing millions of dollars in damage. The Medea system dramatically biases inheritance rates with near-perfect efficiency, allowing for potential control of populations.
Researchers identify Gr21a/Gr63a receptor as crucial to fruit fly attraction to polyamines, opening door to safer chemicals for controlling crop-damaging pests and disease-carrying mosquitoes. The discovery also reveals complex odor-processing mechanisms in insects.
A study using fruit fly models reveals that a genetic mutation in the DNAJC13 gene leads to the accumulation of α-synuclein protein, causing motor dysfunction and neurodegeneration. This finding provides new insights into the molecular mechanisms of familial Parkinson's disease and may lead to the development of disease-modifying thera...
Researchers at Max Planck Institute discover that female flies become more receptive to courting males when they smell their favorite food. The study found that vinegar odor boosts the perception of a male sex pheromone, increasing the likelihood of mating.
Brandon Cooper, a new University of Montana faculty member, has received a $1.8 million grant from the National Institutes of Health to investigate the effects of Wolbachia bacteria on insect physiology and fitness. The study aims to understand how these bacteria spread within and between host species.
Scientists at Max Delbrück Center for Molecular Medicine in the Helmholtz Association use a new spatial mapping algorithm to reassemble the fly embryo from thousands of single cells, revealing unique gene expression profiles. The virtual embryo shows exactly which genes are active where at this point in time.
Neurobiologists have reconstructed nerve cells and synapses in a larval brain, revealing new circuit connection patterns that will aid future research on brain function. The project represents a significant contribution to the creation of a complete wiring diagram of the Drosophila larvae's brain.
The study reveals that morphogens, such as Dpp, are necessary for tissue growth but their concentration gradients do not direct wing growth. The research suggests an alternative mechanism regulates the size of the final wing structure.
In a study published in PLOS ONE, researchers found that female Drosophila buzzatii fruit flies use courtship songs to pick mates of their own species. The study suggests that this preference may have driven speciation in the cluster. Female preferences for specific songs varied among individuals.
A novel dietary supplement has been shown to reverse cellular damage caused by specific genetic mutations in the kidneys of transgenic fruit flies. The study provides a personalized model for testing novel therapies for rare diseases such as focal segmental glomerulosclerosis (FSGS), which currently lack treatment options.
Researchers found that 85% of human genes associated with nephrotic syndrome also play crucial roles in Drosophila renal function. Silencing a specific gene led to dramatic impairments in nephrocyte function, shortened life span, and reduced filtration capacity.
A new study finds that invasive fruit fly males of the wrong species can coerce females into sex, reducing their offspring production and willingness to mate with their own kind. Native species are threatened by these unwelcome romantic advances, which contribute to their decline.
Researchers discovered that spotted-wing flies use senses of smell, touch, and taste to choose ideal nursery sites. They prefer firm texture and volatile chemicals emitted by freshly ripened fruits.
Research has identified Ovo as a critical regulator of germline development in both mice and fruit flies, with the protein essential for the proper formation of eggs and sperm cells. This discovery suggests that Ovo acts as part of a conserved mechanism controlling reproductive cell development across different animal species.
This review article discusses the neural control mechanisms behind fly larval locomotion, a complex motor behavior shared by both vertebrate and invertebrate species. Key findings from Drosophila models reveal the crucial role of genes in regulating locomotor rhythm and pattern generation.
Researchers found a gene from the common fruit fly that can be expressed in plants to improve TNT removal from contaminated soil. The breakthrough has the potential to clean up millions of hectares of land contaminated by munitions.
A team of scientists has discovered that N6-methyladenosine (m6A) regulates gene expression to determine the sex of fruit flies by controlling the Sex-lethal (Sxl) gene. Alternative splicing allows only female mRNA to be made into a functional protein.
Researchers discovered a process by which APOL1 contributes to renal disease, mimicking human kidney cell pathology in Drosophila. Cloning mutated APOL1 genes, they found increased cellular activity, cell size, abnormal function and accelerated cell death.
Researchers have identified a new receptor in Drosophila flies that detects bacterial infections and triggers an immune response. The discovery adds to our understanding of the insect's innate immunity and provides insights into the human immune system.
Researchers found that providing GlcNAc supplement to Pngl-deficient flies prevents death, with nearly 70% surviving to adulthood. The study suggests a potential diet-based treatment for the rare disease NGLY1 deficiency.
Two studies reveal unique properties of cells in Drosophila larvae that exhibit resistance to cell death and participate in tissue regeneration. Cells from specific 'tumor hotspots' express conserved signaling pathways necessary for tumor formation, while deregulation of these pathways is implicated in human cancer therapy resistance.
A new species of fruit fly, Drosophila yakuba, has evolved to consume yeast growing on the toxic noni fruit. Genetic analysis revealed that this adaptation occurred around 30,000 years ago, providing a unique opportunity to study evolutionary changes and genetic adaptations in response to environmental pressures.
Research reveals that fruit flies' adult and larval nervous systems share similar structures and molecular signatures, contradicting the traditional view of metamorphosis as two separate stages. The study uses lineage tracing to identify neuroblast lineages and discover unique neuroblasts controlling leg motor neurons.
Researchers discovered the organic cation transporter CarT is necessary for maintaining histamine levels in fruit fly brains, ensuring normal vision. Disrupting this process led to impaired vision and behavioral abnormalities in flies.
Scientists at the universities of Bonn and Leipzig found a way to break through insect shells using enzyme chitinase 2 and growth factor idgf6. This discovery offers new starting points for controlling agricultural parasites and disease-carrying insects, such as mosquitoes that spread Zika virus.
Susan E. Celniker has made significant contributions to the field of genetics, including sequencing and annotation of the Drosophila genome. Her work has enabled proteomic studies and developed computational tools for genetics researchers.
Fruit flies have evolved protective armor plates in their reproductive tract to shield against rough male genitalia, while females also employ a 'cross-dressing' strategy by darkening their skin to evade male attention. This study explores the genetic controls behind these strategies and their survival value.
Researchers found that female Drosophila flies avoid oviposition sites that smell of parasitic wasps, significantly increasing the survival rate of their larvae. The detection is mediated by a dedicated olfactory circuit that recognizes the sex pheromone of Leptopilina wasps.
Researchers have discovered molecules that act as cellular identification tags on neurons in the fruit fly Drosophila, guiding the development of the neuromuscular and visual systems. The finding validates a theory proposed by Roger Sperry in the 1950s and provides insight into brain development.
Female Drosophila flies avoid laying eggs near parasitic wasps due to an innate early warning system that detects their odor. The study identified the specific olfactory circuit responsible for this detection, revealing a highly specific and efficient defense mechanism against predators.
Researchers at IRB Barcelona have revived an old tissue transplant technique from 1935 to aid tumour growth studies in Drosophila melanogaster. The approach has been successfully reproduced and implemented by labs worldwide.
Researchers found that weak doses of gamma radiation increase the lifespan of drosophila flies by 7.6% in females and 3.4% in males. The study suggests that understanding the genetic mechanisms behind this effect could lead to new ways to prevent aging in humans.
E-Cad protein facilitates coordinated movement of diverse cell types, enabling them to migrate together and distribute at their destination. This new function may explain why tumours with intermediate E-Cad levels have a poorer prognosis, highlighting the protein's role in cancer metastasis.
Male flies precisely assess potential partner suitability through complex neural integration, weighing taste and smell signals to make a decision. The study reveals P1 neurons play a crucial role in integrating sensory information, enabling the male fly to choose the right partner.
Scientists at UC Riverside identified a safe and affordable repellent, butyl anthranilate (BA), to protect fruits from the spotted wing Drosophila insect. Lab experiments showed BA effectively warded off the insect from blueberries, reducing fruit damage during ripening.
A team of researchers discovered that the main clock of flies is controlled by mechanisms similar to those regulating human internal clocks. This study demonstrates how distant organisms can share similar biological clock gears despite displaying different circadian activities.
Researchers have identified a relatively simple molecule called methyl laurate that regulates complex mating behavior in vinegar flies. Methyl laurate is detected by specific neurons and triggers courtship behavior in males, while also activating circuits involved in aggregation.
A transposable element has invaded a new species of fly, Drosophila simulans, through horizontal gene transfer. The P-element's rapid spread suggests that transposable elements can quickly adapt and evolve within species.
A study by the Natural History Museum of Los Angeles County found two previously unknown species of vinegar flies (Drosophila gentica and Drosophila flavohirta) breeding on flowers rather than fruit in urban areas. The discovery sheds light on the city's biodiversity and highlights the importance of citizen scientists in this research.
Dr. Michael Gordon's research focuses on understanding neural circuits that drive taste responses and feeding preferences in fruit flies. His studies have shown that food preference can be viewed as a changing metric based on initial taste, experience, and physiological condition.
The Genetics Society of America awarded nine young researchers for their innovative work on fruit fly models, shedding light on human genetics diseases. The winners showcased promising contributions to the field, including studies on gene expression and chromatin state in Drosophila development.
Scientists at the Max Planck Institute for Chemical Ecology identified a leaf odor, beta-cyclocitral, that specifically attracts Drosophila suzukii, a devastating fruit crop pest. This specialization allows the fly to pinpoint ripe fruits by tracking the distinct leaf odor.
Female Drosophila sechellia flies produce fewer eggs than other fruit flies due to a genetic mutation that inhibits dopamine production, but feeding morinda fruits or chemicals from these fruits increases fertility. Dopamine precursor L-DOPA is present in morinda fruits and compensates for the genetic deficiency.
Research shows that fruit fly females combine personal preferences with social information when choosing egg-laying sites. While most follow the group's cue, some females ignore social influence and stick to their own preference. This complex decision-making process is influenced by environment, genetics, and social context.
Researchers generated a fruit fly model of human colon cancer, revealing key genetic factors behind the disease. The study identified subtle interactions in cancer development, shedding light on early-stage cancer progression.
Researchers found that p53 in flies adapts metabolic response to nutrient deprivation, making cells 'tighten their belts' and optimize energy stores. The study provides insights into the molecular mechanisms of p53 and its potential involvement in diabetes and obesity.
The Genetics Society of America has honored nine young researchers with poster awards for their innovative work on Drosophila melanogaster. The winners, who presented at the 55th Annual Drosophila Research Conference, explored various aspects of genetic and molecular biology. Their research has significant implications for understandin...
Researchers have identified a conserved pathway responsible for seizures in both Drosophila flies and humans. Flies with prickle gene mutations exhibit myoclonic seizures, similar to those in human patients, and respond to the anti-convulsive drug valproic acid.
Scientists discover that when one cell dies due to DNA damage, its neighbors are alerted and become harder to kill. This finding challenges previous views on apoptosis and could have implications for cancer therapy.
Researchers develop transgenic flies expressing anti-amyloid antibodies, which reduce neuronal loss and improve eye morphology. A second treatment involving secreted Heat shock protein 70 also shows protective effects, suggesting a new approach to targeting amyloids.
Researchers found de novo genes in female Drosophila flies that originate from ancestral non-coding DNA sequences. These genes appear to play a role in female reproduction and may have been previously overlooked in favor of male-biased gene expression.
Researchers used Drosophila flies to unravel the signalling mechanism involved in cell movement regulation. A new molecular component controls FGF expression, which is crucial for processes like embryonic development, wound healing and tumour invasion.
Scientists from Indiana University have described the transcriptome of the fruit fly Drosophila melanogaster in unprecedented detail, revealing a far more complex genome than previously suspected. The study identifies thousands of new genes, transcripts, and proteins, shedding light on human biology and disease.
A recent study from the University of California, Davis, analyzes the ovipositor and behavior of Drosophila suzukii, a fruit fly known to deposit eggs inside ripening fruit. The research highlights the potential for this pest to spread rapidly across North America.
Researchers found that mechanical tension is established shortly after muscle-tendon contact, providing positional information for sarcomere formation. Without tension, muscles fail to build regular myofibrils, resulting in chaotic protein distribution.