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

orks the wiring for sexual behaviour."

fru has so far been found only in insects; dsx, however, is found throughout the animal kingdom, where it plays a fundamental role in sex determination, and so is of particular interest to researchers.

Using a transgenic tool generated in his lab, Dr Goodwin and colleagues were able to map dsx throughout the fly's development using a fluorescent protein marker that illuminates areas where DSX is active. This highlighted profound differences in neural architecture between the sexes. In males, the researchers were able to show that dsx complements fru activity to create a 'shared' male-specific neural circuit; in females (where fru is inactive), dsx forms a female-specific circuit.

Importantly the researchers were able to manipulate these cells, impinging their ability to function, and show that these circuits are responsible for behaviours unique to the individual sexes.

"It has been suggested that there are only minor trivial differences between the neural circuits that underlie behaviour in males and females," explains Dr Goodwin. "We have shown that in fact there is quite a bit of difference in the number of neurons and how these neurons connect, or 'talk', to each other. These differences can have big consequences on the structure and function of the nervous system."

In addition, while dsx was known to establish the gender of the adult fly, the pattern of dsx activity in the adult was unknown. Dr Goodwin and colleagues have shown that this pattern is not ubiquitous, but rather is restricted in a specific and telling manner.

Some tissues, such as blood cells, may not require a defined gender in order to function. However, others such as the 'fat body', which in the adult fly functions in part to produce hormones, and the oenocytes, which produce sex-specific pheromones, require a specified sexual identity. It was unsurprising to Dr Goodwin and colleagues to find dsx e
'/>"/>

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:7/23/2015)... 2015 Aware, Inc. (NASDAQ: AWRE ), a ... results for its second quarter ended June 30, 2015.  ... $4.5 million, a decrease of 33% compared to $6.8 million ... second quarter of 2015 was $0.3 million, or $0.01 per ... diluted share, in the same period a year ago.  ...
(Date:7/21/2015)... , July 21, 2015  NXT-ID, Inc. (NASDAQ: ... biometric authentication company focused on the growing mobile ... wallet, announces that it has filed provisional patent ... Method. This invention highlights next ... authorizes an account, but also the user using ...
(Date:7/13/2015)... 13, 2015 Synaptics Inc. (NASDAQ: ... solutions, today announced sampling of ClearPad ® ... integration (TDDI) product targeting smartphones and tablets. This ... Synaptics , best-in-class touch controller IP and ... developed in the company,s Japan Design Center. TDDI ...
Breaking Biology News(10 mins):Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 2NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 3NXT-ID Patents Personalized Tokenized Payments for Next Generation Secure Payment Technology 4Synaptics Announces Sampling of Second Generation TDDI Solutions 2Synaptics Announces Sampling of Second Generation TDDI Solutions 3
... URBANA A new strategy to manage invasive species ... the Grand River Grasslands, an area within the North ... along with his colleagues at Iowa State and Oklahoma ... effort to establish a more diverse landscape for native ...
... 9, 2012More than half (52%) of the companies comprising ... revenue-generating, compared to about 21% four years ago, reports ... those companies, 31% have commercial products and 21% are ... to the current issue of GEN . ...
... July 11, and join a public forum with North ... Environmental Protection Agency Administrator Lisa P. Jackson, Canadian Environment ... Quesada. The webcast will kick off at 9 ... July 9 and 10 Joint Public Advisory Committee workshop ...
Cached Biology News:Grassroots approach to conservation developed 2Grassroots approach to conservation developed 3GEN reports on growth of tissue engineering revenues 2
(Date:7/31/2015)... HONG KONG , July 31, 2015 ... "Company"), China,s leading provider of ... and stem cell storage services, today announced that the ... with the U.S. Securities and Exchange Commission. The filed ... year ended March 31, 2015. The Form 20-F can ...
(Date:7/30/2015)... July 30, 2015   GenoSpace , a ... interpretation and analysis of genomic and other biomedical ... has joined the company as Vice President of ... http://photos.prnewswire.com/prnh/20150730/250931 "GenoSpace partners with ... interpret, analyze and explore complex sets of genomic, ...
(Date:7/30/2015)... ... July 30, 2015 , ... Leading regenerative veterinary medicine company, ... canine osteoarthritis stem cell product, currently under development for FDA approval. The product ... marketed in the US by Aratana. This product, termed AT-016, is an allogeneic ...
(Date:7/30/2015)... Ascendis Pharma A/S (Nasdaq: ASND ... TransCon technology to address significant unmet medical needs, ... Phase 2 study to evaluate the safety and ... treatment-naïve, pre-pubertal children with growth hormone deficiency, or ... the top-line results from our Phase 2 pediatric ...
Breaking Biology Technology:China Cord Blood Corporation Files Its Annual Report on Form 20-F 2GenoSpace Introduces Matthew Fischer as Vice President of Sales and Marketing 2VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 2VetStem Biopharma Successfully Completes Large Milestone Efficacy Study for its Flagship Canine Osteoarthritis Stem Cell Product 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 6Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 7
... on new patient data supporting the Ross heart, reconstruction procedure ... ... procedure, ATLANTA, Oct. 7 CryoLife, Inc. (NYSE: CRY ... surgeons from around the globe will participate in the,Ross Summit 2008, ...
... AMERIGROUP,Corporation (NYSE: AGP ) today announced ... quarter ended September 30, 2008, after the market ... Eastern Time on Thursday, October,23, 2008, AMERIGROUP,s management ... earnings and other information., To listen to ...
... to Save Millions of Lives, GERMANTOWN, Md., ... company focused on development of medical,countermeasures for biodefense ... a multiyear contract for advanced development of a,vaccine ... the National,Institute of Allergy and Infectious Diseases (NIAID), ...
Cached Biology Technology:CryoLife Hosts Worldwide Surgical Congress for the Ross Procedure 2CryoLife Hosts Worldwide Surgical Congress for the Ross Procedure 3CryoLife Hosts Worldwide Surgical Congress for the Ross Procedure 4AMERIGROUP Corporation to Discuss Third Quarter Earnings on October 23 2Integrated BioTherapeutics Awarded NIAID Contract For Up to $65 Million for Development of a Vaccine against Ebola and Marburg Viruses 2Integrated BioTherapeutics Awarded NIAID Contract For Up to $65 Million for Development of a Vaccine against Ebola and Marburg Viruses 3
BBS/Glycerol/Casein Block and Diluent - 10X Concentrate, 1 L...
... ZMD.414. Immunogen: Synthetic peptide derived from ... rat mTOR (Mammalian target of rapamycin FRAP ... human mTOR protein. On Western blots ... kDa. Reactivity: Human (positive control: HEK293 ...
... Intended to qualitatively ... in formalin-fixed, paraffin-embedded (FFPE) ... spreads, and cell preparations, ... Hybridization (CISH). Fluorescent In ...
...
Biology Products: