Navigation Links
Sex on the brain: 'Doublesex' gene key to determining fruit fly gender
Date:3/21/2010

The brains of males and females, and how they use them, may be far more different then previously thought, at least in the fruit fly Drosophila melanogaster, according to research funded by the Wellcome Trust.

In a paper published today in the journal Nature Neuroscience, researchers from the University of Glasgow and the University of Oxford, have shown that the gene known as 'doublesex' (dsx), which determines the shape and structure of the male and female body in the fruit fly, also sculpts the architecture of their brain and nervous system, resulting in sex-specific behaviours.

The courtship behaviour of the fruit fly has long been used to study the relationship between genes and behaviour: it is innate, manifesting in a series of stereotypical behaviours largely performed by the male. The male chases an initially unreceptive female, and 'woos' her through tapping and licking and using wing vibration to generate a 'courtship' song. If successful, the female will slow and present a receptive posture, which allows copulation to occur.

For some time now, the gene 'fruitless' (fru), which is specific to the adult male fruit fly, was thought to be the key to male behaviour and the development of male specific neural circuitry of flies.

However, the researchers have shown that fru does not explain the complete repertoire of male behaviours in the fly: female flies in which the fru gene has been activated demonstrate some, but not all, of the characteristics usually associated with courtship behaviour in males. The researchers have also shown that dsx plays an important role in shaping the neural circuitry involved in this behaviour.

"The dogma was that dsx made fruit flies look the way they did and fru made them behave the way they did," explains Dr Stephen Goodwin from the University of Oxford, who led the research. "We now know that this is not true. dsx and fru act together to form the neuronal netw
'/>"/>

Contact: Craig Brierley
c.brierley@wellcome.ac.uk
44-207-611-7329
Wellcome Trust
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Nanowire biocompatibility in the brain: So far so good
2. ChemoBrain: How cancer therapies can affect your mind
3. The human brain: Detective of auditory and visual change
4. Columbia geneticists uncover new gene involved in determining hair texture and density in humans
5. Early environment may be key to determining bird migration location
6. New study shows teens who drink 100 percent fruit juice have more nutritious diets overall
7. Caltech researchers obtain first brain recordings from behaving fruit flies
8. Online programs improve fruit and vegetable consumption
9. The how and why of freezing the common fruit fly
10. From fruit fly wings to heart failure -- why Not(ch)?
11. Caltech scientists find emotion-like behaviors, regulated by dopamine, in fruit flies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/29/2014)... Washington, USA The advanced optical methods and applications ... driving a revolution in the neurosciences were the inspiration ... by SPIE, the international society for optics and photonics. ... the BRAIN Initiative in the United States, and a ... for and provide examples of the impact that optics ...
(Date:7/29/2014)... As the climate warms and sea ice retreats, the ... season of increasingly open water which is predicted to ... of this century. Storms thus have the potential to ... a new and unpredictable element to the region. , A ... waves in the middle of the Arctic Ocean, and ...
(Date:7/29/2014)... science, researchers sometimes need to get back to ... that to study the impacts of the bumphead ... ecosystems at two remote locations in the central ... and computer simulation, McCauley, an assistant professor in ... and his colleagues sought to understand whether the ...
Breaking Biology News(10 mins):SPIE launches Neurophotonics journal with special section on BRAIN Initiative 2SPIE launches Neurophotonics journal with special section on BRAIN Initiative 3Huge waves measured for first time in Arctic Ocean 2Huge waves measured for first time in Arctic Ocean 3Underwater elephants 2Underwater elephants 3
... nations are more likely to die than female infants, ... lifespans, reveals a new study by researchers from University ... paper, which will be published online in the Monday, ... Academy of Sciences, analyzes 15 countries spanning three continents ...
... in a recent ,competition, against nature when scientists succeeded ... reaction for which no naturally occurring enzyme has evolved. ... a variety of potential applications in medicine and industry. ... model for understanding the intricate works of nature. These ...
... Black carbon, a form of particulate air pollution most ... and diesel exhaust, has a warming effect in the ... according to scientists in an upcoming review article in ... at UC San Diego atmospheric scientist V. Ramanathan and ...
Cached Biology News:Baby boys are more likely to die than baby girls 2Birth of an enzyme 2Birth of an enzyme 3Black carbon pollution emerges as major player in global warming 2Black carbon pollution emerges as major player in global warming 3
(Date:7/29/2014)... (PRWEB) July 29, 2014 July ... vaccine pioneer in the biotechnology industry, announced that ... Coast Securities, Inc. to explore financing opportunities that ... technology, a breakthrough vaccine platform with the potential ... The company exclusively licensed the well-established LAMP platform ...
(Date:7/29/2014)... 2014 Quorum Review IRB, the ... awarded accreditation by the International Association of ... Six Sigma Deployment Program. The citation recognizes robust ... , Quorum’s Lean Six Sigma program was evaluated ... designation. The designation is a public statement of ...
(Date:7/29/2014)... MA (PRWEB) July 29, 2014 The ... Library of Congress was recently awarded to Juliana Hillis ... Stoneham, MA, for their project, “From an Egg, Everything: ... among 3,000 final entries for the National History Day ... than 300 historians and educators in Washington, D.C. , ...
(Date:7/28/2014)... light, developed by researchers at the University of Cambridge, ... the realm of science fiction, such as invisibility cloaks ... be a reality for quite some time, the technique ... blocks a few billionths of a metre across can ... through them, and works on large chunks all at ...
Breaking Biology Technology:Immunomic Therapeutics Engages Newport Coast Securities, Inc. 2Immunomic Therapeutics Engages Newport Coast Securities, Inc. 3Quorum Review IRB Accredited by IASSC for Lean Six Sigma Deployment Program 2Quorum Review IRB Accredited by IASSC for Lean Six Sigma Deployment Program 3In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 2In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 3Building 'invisible' materials with light 2
... are in U.S. dollars, QUEBEC CITY, Aug. 12 /PRNewswire-FirstCall/ ... global biopharmaceutical company focused on,endocrinology and oncology, today reported financial ... Second Quarter 2008 Highlights, - Advancement of ... - First efficacy trial: patient enrollment completed; ...
... agent and best biotechnology product,to be recognized at Sept. ... The Prix Galien USA 2008,( http://www.prix-galien-usa.com ) will recognize ... impact on the,quality of human life in ways that ... and chronic pain. Charlie Rose will,again emcee the awards ...
... (Nasdaq: VIAP ), a biotechnology company focused on ... announced today that,James G. Stewart, senior vice president and ... at the Fourth Annual Noble Financial Equity,Conference at 8:00 ... Loews Lake,Las Vegas Resort in Nevada., Interested parties ...
Cached Biology Technology:AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 2AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 3AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 4AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 5AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 6AEterna Zentaris Reports Second Quarter 2008 Financial and Operating Results 7Prix Galien USA Announces 2008 Final Candidates 2VIA Pharmaceuticals to Present at Fourth Annual Noble Financial Equity Conference 2
dithiothreitol (DTT) Reactive Dyes and Chemicals Thiol-Reactive Dyes, Haptens and Quenchers Reducing Agents...
Recombinant Equine IL-4, CF...
VACUGENE PUMP 110V, 1 EA. Category: Nucleid Acid Detection Systems....
...
Biology Products: