Navigation Links
With fruit fly sex, researchers find mind-body connection

Male fruit flies are smaller and darker than female flies. The hair-like bristles on their forelegs are shorter, thicker. Their sexual equipment, of course, is different, too.

"Doublesex" is the gene largely responsible for these body differences. Doublesex, new research shows, is responsible for behavior differences as well. The finding, made by Brown University biologists, debunks the notion that sexual mind and sexual body are built by separate sets of genes. Rather, researchers found, doublesex acts in concert with the gene "fruitless" to establish the wing-shaking come-ons and flirtatious flights that mark male and female fly courtship.

Results are published in Nature Genetics.

"What we found here, and what is becoming increasingly clear in the field, is that genetic interactions that influence behavior are more complex than we thought," said Michael McKeown, a Brown biologist who led the research. "In the case of sex-differences in flies, there isn't a simple two-track genetic system ?one that shapes body and one that shapes behavior. Doublesex and fruitless act together to help regulate behavior in the context of other developmental genes."

How genes contribute to behavior, from aggression to alcoholism, is a growing and contentious area of biology. For more than a decade, McKeown has been steeped in the science, using the fruit fly as a model to understand how genes build a nervous system that, in turn, controls complex behaviors. Since humans and flies have thousands of genes in common, the work can shine a light on the biological roots of human behavior. For example, McKeown recently helped discover a genetic mutation that causes flies to develop symptoms similar to Alzheimer's disease ?a gene very similar to one found in humans.

Some of McKeown's recent work focuses on understanding gene networks that control sexual behavior. Research on the topic is often contradictory. Some scientists suggest that the fru
'"/>

Source:Brown University


Page: 1 2 3

Related biology news :

1. Master gene controls healing of skin in fruit flies and mammals
2. UI researcher studies deafness in fruit flies, humans
3. Gap-climbing fruit flies reveal components of goal-driven behaviors
4. Hormones and growth: The control of body size and developmental growth rate in fruit flies
5. Aloe vera coating may prolong freshness, safety of fruits and vegetables
6. Hanging baskets of sex and death help fruit growers
7. Researchers find gland that tells fruit flies when to stop growing
8. Past experience of pheromones induces dominant courtship behavior in fruit flies
9. A resetting signal keeps circadian rhythm on track in Drosophila fruit flies
10. Drunken elephants: The marula fruit myth
11. UCSD study finds anthrax toxins also harmful to fruit flies
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: With fruit fly sex researchers find mind body connection

(Date:8/20/2014)... Multiple fires are visible in in this image of ... Many of these were most likely intentionally set in ... of a forest or stand of trees where the ... of deforestation include conversion of forestland to farms, ranches, ... the dark green of the Amazon Rainforest in the ...
(Date:8/20/2014)... who have suffered concussions ready to return to action? ... high school athletes who head back on the field ... regression in their abilities to simultaneously walk and do ... changes in their balance and/or altered walking speed, was ... 12 had returned to activity in less than a ...
(Date:8/20/2014)... DENVER (August 20, 2014) Women who are poor ... to infants with elevated levels of the stress hormone, ... later in life, according to a new research from ... online recently in the American Journal of Human ... infants and relate it directly to the socioeconomic status ...
Breaking Biology News(10 mins):Recovery reversal seen in Oregon study of returning concussed athletes 2Recovery reversal seen in Oregon study of returning concussed athletes 3CU Denver researcher shows economic disparities impact infant health 2
... found that new disease pathways involving more than one ... rare genetic disorder in which fatty substances called glycosphingolipids ... pain, and increased risk of cancer and Parkinson,s disease. ... expensive and more effective ways to treat the disorder, ...
... release is available in French . , Scientists ... McGill University have discovered that our brains have the ability ... specially-coded sounds, without any visual or tactile input. Not only ... the brain and how it perceives the world around us, ...
... Inhaling nitric oxide appears to safely and effectively ... researchers report., A study of 18 patients in Atlanta, ... oxide for four hours had better pain control than ... C. Alvin Head, chairman of the Department of Anesthesiology ...
Cached Biology News:Cheaper, more effective treatment of type 1 Gaucher disease possible 2See no shape, touch no shape, hear a shape? 2Inhaling nitric oxide eases pain crises in sickle cell patients 2
(Date:8/20/2014)... Aug. 20, 2014  Decision Resources Group finds that the vascular ... Russia , India and ... 2013, roughly equal to the size of the United ... market will experience much faster growth as a result of strong ... Other key findings from Decision Resources Group,s coverage of the ...
(Date:8/20/2014)... Stimulating nerves in your ear could improve the health ... at the University of Leeds used a standard TENS ... apply electrical pulses to the tragus, the small raised ... front of the ear canal. , The stimulation changed ... by reducing the nervous signals that can drive failing ...
(Date:8/19/2014)... Research and Markets  has announced the addition of ... Report" report to their offering. This report ... US$ Thousands by the following Product Segments: Media, Sera, and Reagents. ... Canada , Japan , ... Latin America . Annual estimates and forecasts are provided ...
(Date:8/19/2014)... Lenexa, KS (PRWEB) August 19, 2014 ... to offer fast and cost-effective metabolite production from ... and proprietary chemistry platform, the technology enables convenient ... issues. According to XenoTech’s Vice President of ... metabolite synthesis for assessing clinical risk can be ...
Breaking Biology Technology:BRIC Vascular Access Device Market Valued at $1.6 Billion in 2013, Similar to the U.S. Market 2BRIC Vascular Access Device Market Valued at $1.6 Billion in 2013, Similar to the U.S. Market 3'Tickling' your ear could be good for your heart 2Global Cell and Tissue Culture Supplies - Strategic Business Report 2014 2Beyond Metabolite Identification, Testable Quantities Now Offered by XenoTech 2Beyond Metabolite Identification, Testable Quantities Now Offered by XenoTech 3
... Sept. 15 Epeius Biotechnologies,Corporation today announced that ... has been highlighted in a recent NEWS article,published ... (JNCI, Sept. 9,2008). The article, authored by Vickie ... medicine that may succeed where small,molecules and proteins ...
... Enobia Pharma, an emerging biotech,company focused ... presented pre-clinical data demonstrating that its enzyme,replacement ... bones that,have already been severely weakened by ... with Enobia,s product ENB-0040, significantly,increases survival and ...
... Offers Industry Dialogue, Commentary and How-To, ... Collaboration, PALO ALTO, Calif., Sept. 15 ... strategist and communicator, has,launched a new website, ... and communicators can share thinking, gain insights and,connect ...
Cached Biology Technology:Epeius Biotechnologies' Lead Product, Rexin-G for Metastatic Cancer, Aptly Highlighted by National Cancer Institute Journal 2Enobia Pharma Presents PreClinical Data Showing ENB-0040 Significantly Improved Survival and Healed Skeletal Manifestations of Severe Hypophosphatasia in Mice 2Enobia Pharma Presents PreClinical Data Showing ENB-0040 Significantly Improved Survival and Healed Skeletal Manifestations of Severe Hypophosphatasia in Mice 3
...
RABBIT ANTI HUMAN ALPHA-2-ANTIPLASMIN...
... mix (Thermoprime Plus DNA Polymerase with a ... times higher fidelity than standard Taq DNA ... DNA polymerase, Amplifies DNA templates >20kb, Concentration: ... PCR for cloning and mutagenesis We are ...
... EnzChek Lysozyme Assay Kit (E-22013) provides,researchers ... levels of lysozyme,activity in solution. This ... to 20 U/mL (Figure 1). The ... cell,walls, which are labeled to such ...
Biology Products: