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:6/12/2015)... 12, 2015  Securus Technologies, a leading provider ... public safety, investigation, corrections and monitoring, announced the ... electronically capture, analyze and identify participants of a ... This system can: , ... and subsequent sign-on process is actually the person ...
(Date:6/10/2015)... , June 10, 2015 ... "3D Sensor Market by Technology (Ultrasound, TOF, Structured ... (consumer Electronics, Entertainment, Automotive) and by Geography - ... by MarketsandMarkets, the market is expected to reach ... of 25.51% between 2015 and 2020. ...
(Date:6/9/2015)... Research and Markets  ( http://www.researchandmarkets.com/research/xsgs2s/gesture ) ... Recognition & Touchless Sensing Market by Technology (Touch-based ... Product (Biometric & Sanitary Equipment) & by Geography ... their offering. The total gesture recognition ... $ 23.55 Billion by 2020 at a high ...
Breaking Biology News(10 mins):Securus Announces Patent Issued for Authorized Presence Verification During Video Visitation 23D Sensor Market Worth $3,319.71 Million by 2020 23D Sensor Market Worth $3,319.71 Million by 2020 33D Sensor Market Worth $3,319.71 Million by 2020 4Global Gesture Recognition & Touchless Sensing (Technology, Application & Products) Market 2015-2020 2
... A mother,s iron deficiency early in pregnancy may have ... the child, even if the lack of iron is not ... Rochester Medical Center study published in the scientific journal ... might not notice or treat mild or moderate iron deficiency, ...
... 2011) - An animal,s behavior is probably its ... Its behavior involves processes internal to the animalgenetics, neurobiology, ... social surroundings. According to the book,s authors, "Animal behavior ... sparked when neurons fire in response to stimuli in ...
... In recent years, researchers have worked to develop more ... in Afghanistan or Iraq with missing arms or legs. ... entering the body through the space where the device ... area) where the bacteria would enter the body, and ...
Cached Biology News:Pre-conception and early pregnancy iron deficiency harms brain 2Pre-conception and early pregnancy iron deficiency harms brain 3New book on animal behavior provides integrated view 2Nanomodified surfaces seal leg implants against infection 2
(Date:7/6/2015)... Mass. (PRWEB) , ... July 06, 2015 , ... ... of simpler and cheaper molecular diagnostic tests are key drivers of the global ... growth of personalized medicine and the introduction of new companion diagnostic tests will ...
(Date:7/6/2015)... ImmunoCellular Therapeutics, Ltd. ("ImmunoCellular") (NYSE MKT: IMUC) ... Novella Clinical (Novella), to conduct the phase 3 ... glioblastoma. Novella is a full-service, global clinical research organization ... oncology companies. The ICT-107 phase 3 trial will include ... Europe and Canada , ...
(Date:7/3/2015)... ... July 03, 2015 , ... The Alexander ... and professional service industries alike-- typically known for its consummate professionalism-- embarks each ... good cause and break from their day jobs. , "Our motto has always ...
(Date:7/3/2015)... , July 3, 2015  Pomerantz LLP announces that ... Biotechnology, Inc. ("Puma" or the "Company")(NYSE: PBYI ) ... in United States District Court, Central District of ... on behalf of a class consisting of all persons ... 2014 and May 13, 2015 inclusive (the "Class Period").  ...
Breaking Biology Technology:Demand for Personalized Medicine, Innovative Molecular Diagnostic Tests Spurring Big Growth, According to BCC Research 2Demand for Personalized Medicine, Innovative Molecular Diagnostic Tests Spurring Big Growth, According to BCC Research 3ImmunoCellular Therapeutics Establishes Agreement with Novella Clinical to Conduct ICT-107 Phase 3 Registration Trial in Glioblastoma 2The Alexander Group Declares Their Independence with a Bit of Levity 2SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 2SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 3SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Puma Biotechnology, Inc. of Class Action Lawsuit and Upcoming Deadline - PBYI 4
... 75 percent, SANTA CRUZ, Calif., Aug. 26 ... communities of its member,schools in finding the "perfect match," ... fee reduction., An online job board and careers ... ) has,dropped its fee to $50 per academic postdoc ...
... In situ live cell manipulation on LEAP(TM) to empower ... ... Aug. 26 Cyntellect, a privately-held,biotechnology company, and the ... entered into a joint collaboration to,develop new applications on ...
... cells are not pampered pushovers. O,Reilly et al. report ... molding their environment to control their division and differentiation., ... cradle them in a structure called the niche. The ... their behavior, determining whether they reproduce and specialize. The ...
Cached Biology Technology:Online Career Site Assists Academia in Its Reach 2Cyntellect to Collaborate With the Burnham Institute for Medical Research 2Cyntellect to Collaborate With the Burnham Institute for Medical Research 3
... all the reagents required for a fast ... activity in cell and tissue extracts and ... has been tested on samples prepared from ... spleen, and heart muscle from several species, ...
... CHEMICON's Skeletal Myogenesis Kit provides the ... myoblasts into mature skeletal myotubes. By ... is a valuable tool in studies ... in developing strategies for muscle cell ...
... is an anchorage-independent growth assay in soft ... assay for detecting malignant transformation of cells. ... carcinogens or carcinogen inhibitors) are cultured with ... 21-28 days. Following this incubation period, ...
The Saturn 2200 answers your GC/MS questions with the CP-3800 GC and the 2000 Series Ion Trap MS! These components create a platform for the worlds most versatile GC and flexible MS. Both deliver une...
Biology Products: