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Tag: "fly" at biology news

Costly breeding programs for endangered species pay off

... most higher-order animals have small broods, each fly breeding line was allowed to grow by no more than 50 percent per generation. Each time a pair of flies mated, researchers measured the fitness of the pair by counting the number of eggs the female laid, and by measuring the number of eggs that hatch...

Fighting malaria by manipulating mosquitoes' sense of smell

... demonstrated by a program with the African tsetse fly that has replaced the practice of treating large tracts of land with persistent insecticides with the use of scented baits. It is widely considered to be an environmental and technological success. Unlike insecticides, the chemicals involved in insec...

Stolen gene allows insect virus to enter cells

...ssard and Oliver Lung investigated whether a fruit fly gene, called an f gene, had originally moved from ...d messenger RNA (mRNA) copies of the gene in fruit fly cells, as well as F proteins--both products unlikely to arise if f were a piece of "junk DNA" left o...

Micro RNAs play role in egg making

...gie Mellon, the scientists compared maturing fruit fly eggs. One group of eggs was missing a gene essential for producing miRNAs, whereas another group of eggs had normal miRNA production. (All plants and animals have DICER, the gene the produces miRNAs, so the researchers used a "genetic trick" to gener...

Birds and bats sow tropical seeds

...its. Birds and bats living in nearby forests will fly to the bait to eat the fruit and will likely drop seed from forest species they carried. Fruit will be available all year, so a seasonal progression of seeds from longer-living deep forest species should be carried with the bats and birds. Other trac...

MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools

University of Utah researchers showed that a fruit fly gene is crucial for determining when juveniles beg...." Thummel says the human equivalent of the fruit fly DHR4 gene probably does not work the same way in people as it does in flies. "But things we can stud...

Scientists find a maturity gene in fly

University of Utah researchers showed that a fruit fly gene is crucial for determining when juveniles beg...." Thummel says the human equivalent of the fruit fly DHR4 gene probably does not work the same way in people as it does in flies. "But things we can stud...

Molecular mechanism of feather formation found

...he essence of birds. Without them, birds could not fly or attract mates. But how exactly do feathers form molecularly? Experimentally testing one current hypothesis, developmental biologists at University of Wisconsin Medical School believe they now have the answer. In a previous study, UW anatomy profe...

Single gene is genetic switch for fly sexual behavior

A male fly's sexual courtship of a female fly is a complicated business of tapping, singing, win...going to be fascinating to try to figure out how a fly decides between 'love' and 'war', and what fruitless and the fruitless-expressing neurons have do to...

Locusts' built-in 'surface analysis' ability directs them to fly overland

...courge by controlling their natural inclination to fly over land rather than water. The desert locusts, ...re able to identify the gulf water and knew not to fly over it. The research focused on the ability of the locusts to identify polarized light. This is a t...

New technique could alter field of mouse genetics

...lement has since become a backbone of modern fruit fly genetics. Researchers in Xu's group first tried to adapt the P element for use in mice and to improve the efficiency of the Sleeping Beauty transposon system. When those efforts failed, they chose piggyBac because its enzyme looked and acted differe...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...involving two NASA Earth observing satellites that fly in formation high above Earth. These consist of Aqua and the recently launched Aura, along with sophisticated atmospheric chemistry models that can forecast the global distribution and concentration of one particular pollutant - carbon monoxide (CO)....

New understanding of jet lag

...schedule shifts of six hours, the time it takes to fly across the Atlantic. The finding may explain, at least in part, why transmeridian travelers suffer from jet lag, the malaise experienced after crossing several time zones. The new understanding could eventually lead to the development of medicines t...

Huntington's cure in flies lays groundwork for broader treatment approaches

...ding defect. His collaborators on the recent fruit fly work include, among others, lead author Kanae Iijima-Ando of the Cold Spring Harbor Laboratory and UW-Madison assistant scientist Eric Drier. Working with the simplistic genetics of flies is certainly a long way from the complex realities of humans,...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

...rotozoan, Leishmania infantum, transmitted by sand fly bites. There is no vaccine for this disease, which... signs usually announce a fatal outcome. The sand fly sucks blood from mammals other than humans. This is how, right around the Mediterranean rim, 5 milli...

Taking a flying jump

...is way lies in its decision to jump rather than to fly out of the way. "This kind of low-power decision-m...legs and depression of the wings that can move the fly in a specific direction. Previous studies did not detect directional jumping1, but observations wer...

Modification of program enables prediction of gene transcription

...he complete first exon in both the human and fruit fly genomes. The addition of N-SCAN to TWINSCAN now p...the modified TWINSCAN, on both the human and fruit fly genomes, Brent and colleagues predicted about 25,000 transcription-start sites, compared with a know...

UIC researchers show protein routes messages in nerve cells

...ce Institute in Goettingen, chose the common fruit fly as their research animal and the chemical glutamat...a synapse called the neuromuscular junction in the fly works much like synapses in human brain cells. "We can quickly mutate the flies," said Featherstone...

Hormones and growth: The control of body size and developmental growth rate in fruit flies

...ine the control of larval development in the fruit fly Drosophila. Fruit flies undergo three successive larval stages and molts before undergoing metaphorphosis and emerging as adult flies. In insects, it was previously found that the release of the hormone ecdysone from an endocrine organ called the pro...

Discovery suggests why stem cells run through stop signs

...ake (in this case a protein called Dacapo, a fruit fly homologue of a human tumor suppressor) kept the stem cells from proliferating. "Determining which of the 80 microRNAs is responsible for deactivating the stop signal is the next step of our research," said Ruohola-Baker. "The list of chores that mi...

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