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Tag: "fly" at biology news

'Tribbles' protein implicated in common and aggressive form of leukemia

...thers off. Pear and colleagues knew from fruit fly studies that the Tribbles protein was linked to cell growth and cell-fate determination and is closely related to the Tribbles gene in mammals. In fact, Tribbles is so named because, when mutated in flies, it causes cells to proliferate uncontrollabl...

For crickets, parasitic flies can stop the music

...ave better luck when mates are relatively rare and fly populations are low. "It might be quite a dynamic thing," she said. "Some years, there’s selection against one, some years there’s selection against the other."...

Fighting like a girl or boy determined by gene in fruit flies

...irl or fighting like a boy is hardwired into fruit fly neurons, according to a study in the Nov. 19 Natur...or of neurobiology at HMS, who developed the fruit fly fighting model used. "We want to understand that. I can't think of a better system to study than fru...

Neural stem cells lend the brain a surprising capacity for self-repair

... his colleagues first discovered Numb in the fruit fly Drosophila more than 10 years ago. The gene was found by them and others to play a role in determining the fate of neuroblasts, cells that develop into neurons or other support cells in the insects' brains. Later, researchers found two functionally r...

Psst! Coffee drinkers: Fruit flies have something to tell you about caffeine

... Now that Montell and his colleagues have a mutant fly that is unable to taste caffeine, they hope to further examine the other genes and molecules involved in the caffeine response and better understand the biochemistry behind caffeine-induced behavior in other organisms, namely humans. ...

Fruit fly aggression studies have relevance to humans, animals

Even the tiny, mild-mannered fruit fly can be a little mean sometimes ?especially when th...suite of genes that affect aggression in the fruit fly Drosophila melanogaster, pointing to new mechanisms that could contribute to abnormal aggression in ...

Hard-wiring the fruit fly's visual system

Both vertebrate and fruit fly have so-called visual maps in the brain that repre...ophila melanogaster, the most common form of fruit fly used in laboratories around the world. "There is a genetic component (to formation of the vertebra...

Researchers use multiphoton microscopy to watch chromosomes in action

Feverish fruit fly larvae, warmed in a toasty lab chamber, are giving...te their genes to synthesize key proteins in fruit fly cells. The advance could be a significant step toward understanding the basic processes that underli...

P(acman) takes a bite out of deciphering Drosophila DNA

...A that can then be inserted into the genome of the fly at a specific site using phiC31-mediated transgenesis. It is a new technique with far-reaching promise, said Bellen. P(acman) overcomes certain obstacles that have hampered research. It allows the cloning of large pieces of DNA to be used to tr...

Scientists identify 36 genes, 100 neuropeptides in honey bee brains

...nes discovered in other species, such as the fruit fly (Drosophila melanogaster). And, because genes that produce neuropeptides often have repeating sequences, some of the genes were found by a computer algorithm that scanned the honey bee genome for such telltale sequences. "We found 36 genes, from wh...

New genetic analysis forces re-draw of insect family tree

...sects which undergo complete metamorphosis): fruit fly (Drosophila melanogaster), mosquito (Anopheles gambiae), silk moth (Bombyx mori), flour beetle (Tribolium castaneum), honey bee (Apis mellifera) and sibling parasitic wasp species (Nasonia vitripennis and Nasonia giraulti). These insects represen...

Protowings may have helped bird ancestors cover rough terrain

...s can run 12 hours after hatching, but they cannot fly until they are about a week old. Even before they are able to fly, however, the birds flap their developing wings in a characteristic way while running, which improves their ability to climb steep slopes and even vertical surfaces. Dial and colleague...

Fire ant-attacking fly spreading rapidly in Texas

...control invasive fire ants without pesticides. The fly larvae develop inside the ants and kill their host...m to map the spread of the first species of phorid fly successfully introduced. The fly, Pseudacteon tricuspis, was introduced to several locations in Texa...

Ghost protein leaves fresh tracks in the cell

...rin where to assemble in cells. They use the fruit fly as their test animal because its genetic makeup ha...umptions and start fresh," he said. A laboratory fly was genetically engineered so that spectrin could no longer bind to ankyrin -- which, Dubreuil assum...

Tweedle coat fashions stocky flies

... a defective TweedleD protein in the outer coat of fly larvae makes them appear compressed. "It's not...rent parts of the cuticle--the tough outer coat in fly embryos and larvae. The exact function of the Tweedles is not known, but the researchers think they...

Serotonin, acting in a specific brain region, promotes sleep in fruit flies

...r sleep research. The simple nervous system of the fly enables researchers to ask basic questions about s...he more complicated mammalian systems. Using the fly model in their new study, the researchers showed that pharmacological treatment with serotonin incre...

Fly's courtship sheds light on the formation of innate behaviors

...stereotypical male courtship behavior of the fruit fly Drosophila melanogaster. The male fly, in its attempt to mate, will perform a series of complex behaviours ?including following females, singing, licking, and tapping ?that are not based on the fly's past experience. One gene, fruitless, has been sho...

K-Staters design and build a low-cost remote sensing tool for environmental studies

...sas and also elsewhere," Ham said. "Because it can fly as low as 15 feet and as slow as 30 miles per hour if necessary, we're going to be able to see details that we cannot measure with a regular piloted aircraft. "I think it will be possible not only to be able to say how much and what species of veget...

Diabetes research takes wing thanks to long-lived fruit fly

...he creation of an extraordinarily long-lived fruit fly by genetics researchers at the University of Roche...new path in the fight against diabetes. The mutant fly is serving as a portal for understanding the factors that determine how nutrition and stress set the...

New understanding of parasite cell structures may provide treatments for serious tropical diseases

...nds where it enters the human bloodstream when the fly bites. "We found that putting these cells under s...nitially encountered by the trypanosome inside the fly caused the parasites to cleave free GPIs," said Mensa-Wilmot, "and that gives us important informati...

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