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Tag: "fly" at biology news

Undergraduate research shows leaderless honeybee organizing

...s in the swarm, as the bees need to make the queen fly again once a new nest site has been selected. “Drew Pierce did this project last summer,” Schneider explained. “We constructed a special observation stand where we could actually see how workers were interacting with queens inside a swarm clus...

Penn researchers link cell's protein recycling systems

..., which results in neurodegeneration. They use the fly eye, a neuron-rich tissue, as a surrogate for the ...cked out, inducing autophagy no longer rescues the fly eyes from neurodegeneration. Therefore, autophagy requires HDAC6 to work. They also showed that by s...

Exploring the dark matter of the genome

... (BDGP). "Over a third of the total DNA in a fruit fly is heterochromatin. The female fly has an estimated 60 megabases of heterochromatin" -- a megabase (Mb) is a million bases, the nucleot...

Revealed -- Mosquito genes that could be controlling the spread of killer viruses

...with similar groups of genes in the harmless fruit fly and the Anopheles mosquito that transmits malaria. When comparing the two different mosquitoes, the scientists found some similarities in the genes controlling their respective immune systems, but also numerous differences. The team aims to discover ...

For many insects, winter survival is in the genes

...and compared RNA from both dormant and non-dormant fly pupae – the developmental stage between larva and ...ock proteins we found during diapause in the flesh fly are also important to an insect's ability to endure months of cold temperatures." Denlinger has n...

'Insulator' helps silence genes in dormant herpes virus

...s then inserted copies of the structure into fruit fly embryos to see if they could block the activity driven by gene-activating elements called "enhancers" during development. "If the element we were testing was an insulator, then only one enhancer would be affected, and that's exactly what we found...

Maggots rid patients of MRSA

...ssor Andrew Boulton and his team used green bottle fly larvae to treat 13 diabetic patients whose foot ul...with sterile free-range larvae of the green bottle fly Lucilia Sericata. They applied the larvae between two and eight times, depending on the size of the ...

New technique will produce a better chromosome map

...economical technique for imaging and mapping fruit fly chromosomes. This new approach will enable them to...s have used a hand-drawn map of the bands of fruit fly polytene chromosomes, with the shape and location of these structures only vaguely delineated. This ...

Survival of the rarest: Fruit flies shed light on the evolution of behavior

...cope. The researchers found that when the fruit fly larvae were competing for food, those that did best had a version of the foraging gene that was rarest in a particular population. For example, rovers did better when there were lots of sitters, and sitters did better when there were more rovers. ...

Sleepless for science: Flies show link between sleep, immune system in Stanford study

...he brain's central clock, which is the area of the fly brain that exhibits circadian gene activity, was r...an even better way would be to turn to established fly strains isolated decades ago that possess disruptions in their genes controlling circadian rhythm. I...

Do fruit flies have free will?

...the analysis showed that the temporal structure of fly behavior is very different from random noise. The ...er models, all of which failed to adequately model fly behavior. Only after the team analyzed the fly behavior with methods developed by co-authors Geor...

Flies don't buzz about aimlessly!

How you ever stopped to wonder how a fruit fly is able to locate and blissfully drown in your win...ategy ?like the fractal patterns of a snowflake, a fly flight path appears similar whether viewed up close, or from a distance. The researchers also fo...

Researchers find link between food odors and lifespan in fruit flies

...slower metabolism. "A simple way to get a fruit fly to live longer is to put it at lower temperatures,...slower metabolism. "A simple way to get a fruit fly to live longer is to put it at lower temperatures," he said. "It will live longer but everything is ...

Scientists find genes involved in the battle between Hessian flies and wheat

...s and can destroy crops worldwide, but the Hessian fly larvae that survive eventually evolve methods to o...rying to thwart the insect have identified Hessian fly genes that nullify toxins that wheat produces to protect itself from the munching larvae. The resear...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

...elated. "You are more closely related to a fruit fly than these two organisms are to each other," he says. However, from analysis of genes from the two bacteria, McBride suspects that they use the same basic machinery to move. And there may be another connection. F. johnsoniae doesn't eat cellulose...

Bisexual fruit flies show new role for neurochemical

...the brain. The team discovered proteins in fruit fly glia cells that regulate the amount of ambient glu...sexual behavior," he said. "Trying to understand fly bisexuality sounds silly, but these behavioral changes are important evidence that ambient extracell...

Wheat can fatally starve insect predators

... to attack the stomach lining of a crop-destroying fly larvae so that the bugs starve to death. The gen...binding with a carbohydrate complex in the Hessian fly larvae. The lectin acts as a key to the carbohydrate structure, known as a chitin. When the larva...

University of Alberta researchers unravel intricate animal patterns

...owever, we can think of those flocks of birds that fly in one direction, and then suddenly change direction 180 degrees, and compare this with the zigzagging type of pattern shown by the numerical simulations. Or we can think about the anti-predatory behaviour exhibited by some schools of fish--when a pr...

New molecular pathway could reveal how cells stick together

...he protein from the animal. By developing a mutant fly lacking the gene that codes for the protein, she can examine what goes wrong without the protein and then infer the normal function of that protein. She has previously done similar work knocking out MMP in flies. "One of the defects in MMP mutant...

Is there a pilot in the insect?

...February 8, 2007. How does a tiny creature like a fly or a bee, with a brain the size of a pinhead, manage to make such a magnificent job of controlling its flight, and avoid crashing to the ground? Today it is known that the sensory motor prowess of these flying miniatures depends on the nervous system...

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