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Bisexual fruit flies show new role for neurochemical
01-02-2007 · EurekAlert!Fruit flies' ability to discern one sex from another may depend on the number of receptors on the surface of nerve cells, and the number of receptors is controlled by levels of a ubiquitous brain chemical, University of Illinois at Chicago researchers have found.
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Keywords: bisexual, fruit, flies, show, role, neurochemical, fly
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- Fruit flies show surprising sophistication in locating food source
02-14-2008 · EurekAlert!
UCLA researchers show that a tiny fruit fly, with a brain smaller than a poppy seed, combines massive amounts of information from its sense of smell and vision, then transforms these sensory signals into stable and flexible flight behavior that leads them to a food source. Understanding the integration of these sensory cues could be relevant to developing smarter robotic drones.
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- Wheat can fatally starve insect predators
01-10-2007 · EurekAlert!
A newly identified wheat gene produces proteins that appear to attack the stomach lining of a crop-destroying fly larvae so that the bugs starve to death. The gene's role in creating resistance to Hessian flies was a surprise to U.S. Department of Agriculture and Purdue University researchers, discoverers of the gene and its function.
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- Picky-eater flies losing smell genes
04-02-2007 · EurekAlert!
The specialist fruit fly Drosophila sechellia is losing genes for smell and taste receptors 10 times faster than its generalist relative Drosophila simulans. The findings could help researchers understand how some insect pests adapt to feeding on a particular plant.
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- Massive project reveals shortcomings of modern genome analysis
11-07-2007 · EurekAlert!
The sequencing and comparison of 12 fruit fly genomes -- the result of a massive collaboration of hundreds of scientists from more than 100 institutions in 16 countries -- has thrust forward researchers' understanding of fruit flies, a popular animal model in science. But even human genome biologists may want to take note: The project also has revealed considerable flaws in the way they identify genes.
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- Flies don't buzz about aimlessly!
04-03-2007 · EurekAlert!
How you ever stopped to wonder how a fruit fly is able to locate and blissfully drown in your wine glass on a warm summer evening, especially since its flight path seems to be so erratic? Mark Frye at the University of California and Andy Reynolds at Rothamsted Research in the United Kingdom have been pondering this very question.
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- Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
08-21-2007 · EurekAlert!
Scientists at the University of Toronto Mississauga and Queen's University show that genetic variation in the foraging gene results in different tolerance for heat stress and demonstrate how the use of specific drugs can replicate this effect in fruit flies and locusts. While the findings are at an early stage, the researchers suggest that they could lead to ways to rapidly protect the brain from extremely high fevers in mammals, including humans.
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- Fighting like a girl or boy determined by gene in fruit flies
11-19-2006 · EurekAlert!
Fighting like a girl or fighting like a boy is hardwired into fruit fly neurons, according to a study in the November 19 Nature Neuroscience advance online publication by a research team from Harvard Medical School and the Institute of Molecular Pathology in Vienna. The results confirm that a gene known as "fruitless" is a key factor underlying sexual differences in behavior.
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- Researchers find link between food odors and lifespan in fruit flies
02-01-2007 · EurekAlert!
Researchers studying the fruit fly, Drosophila melanogaster, find that exposure to nutrient-derived odors can module lifespan and partially reverse the longevity-extending effects of dietary restriction.
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- Flies' evasive move traced to sensory neurons
11-29-2007 · EurekAlert!
When fruit fly larvae are poked or prodded, they fold themselves up and corkscrew their bodies around, a behavior that appears to be the young insects' equivalent of a "judo move," say researchers reporting online on Nov. 29 in the journal Current Biology, a publication of Cell Press. They now trace that rolling behavior to neurons resembling those that sense pain.
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- Fighting Styles: Gene gives flies his, her conflict moves
11-25-2006 · Science News Online
Switching forms of one gene can make a male fruit fly fight like a girl, and vice versa.
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