Navigation Links
Male or female? In flies, some cells can't tell
Date:5/4/2010

pression in the cells of developing flies. The technique attaches a reporter gene to doublesex that makes cells expressing the gene glow green. Tracking doublesex then becomes as easy as watching for green spots in fly embryos, larvae, and adults. With this approach, Baker's group found that during fly development, doublesex switches on and off at different times and in different tissues. As expected, they saw doublesex protein in the genitalia and in other body parts that display differences between males and females. But in body parts where there are not overt differences between males and females, they found that doublesex was expressed only in certain cells and not expressed in many other types of cells. "It's a simple observational study with profound implications," Baker says. This study demonstrates that only a subset of cells is likely to know whether they are male or female. Robinett and her colleagues found that male and female fruit flies are really a mixture of cells that are sex-specific and cells that are sexless. Many of the fly's cells never turn on the doublesex gene. So while, some cells "know" their sex and take on sex-appropriate characteristics during development, those that do not express doublesex remain identical in males and females.

Because doublesex or analogous genes are present in myriad organisms, including humans, this theme may apply to more than fruit flies. "It may be broadly true that males and females are made up of a mosaic of cells that know their sex and cells that don't," Baker says. This could prompt other researchers to check for similar doublesex patterns in other model organisms such as roundworms, zebrafish, and mice. If similar findings emerge, it could shake up the entire notion of sex differences in the animal kingdom. And if the finding applies to humans a big "if" at this point the implications could be even more significant. "If it applies to people, it's certainly going to change our sociological view of
'/>"/>

Contact: Jennifer Michalowski
michalow@hhmi.org
Public Library of Science
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. How do you know whether you are male or female?
2. Broccoli component limits breast cancer stem cells, U-M study finds
3. Scripps Research team provides groundbreaking new understanding of stem cells
4. California funds UCI basic research on stem cells
5. Lensless imaging of whole biological cells with soft X-rays
6. Innovalight Establishes New Record With Silicon Ink Solar Cells
7. Gene silencing may be responsible for induced pluripotent stem cells limitations
8. Production of biofuels could benefit by controlling the types of cells that develop in plants
9. Chloride channels render nerve cells more excitable
10. Scientists sever molecular signals that prolific parasite uses to puppeteer cells
11. Carbon nanotubes boost cancer-fighting cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... , Kina, 31. juli 2015 Den 10. ... afholdt af BGI fra den 22. - 25. oktober i ... Konferencen fejrer sin 10-års fødselsdag i år. Siden starten ... indflydelsesrige årlige møder på ,omik,-feltet, og er en af ... ICG-10 fokuserer på nylige gennembrud og fremskridt ...
(Date:7/31/2015)... China , 31 de julio de 2015 /PRNewswire/ ... Genómica (ICG-10,  www.icg-10.org ) del 22 al 25 de ... . La conferencia celebra su décimo aniversario ... ha convertido en una de las reuniones anuales más ... y es una de las conferencias científicas más dinámicas, ...
(Date:7/31/2015)... , 31 de julho de 2015 A ... www.icg-10.org ) será realizada pela BGI de 22-25 de outubro ... A conferência está celebrando seu 10 o. ... a ICG se tornou uma das reuniões mais influentes ... encontros científicos mais dinâmicos, entusiastas e prazerosos. ...
Breaking Biology News(10 mins):Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 2La 10ª Conferencia Internacional sobre Genómica (ICG-10) comienza en octubre 3A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3
... to control lens development in mice and humans is also ... as neurobiologists of the Max Delbrck Center for Molecular Medicine ... in which they had removed the c-Maf gene in the ... human carriers of a mutant c-Maf gene. People with such ...
... two new European projects focusing on type 2 diabetes. ... and strategies for preventing the disease. Focus is on ... effects of changes in lifestyle. The goal includes planning ... diabetes and exploiting the results in a major European ...
... Airborne gases get sucked into stubborn smog particles from ... Irvine and other researchers published today in the ... The results could explain a problem identified in recent ... Protection Agency, California air regulators and others significantly underestimate ...
Cached Biology News:The molecular basis of touch sensation 2VTT searches for novel biomarkers and targets for preventing or treating Type 2 diabetes 2Gases drawn into smog particles stay there, UCI-led study reveals 2
(Date:7/31/2015)... ... July 31, 2015 , ... Global Resorcinol ... premium industry insights on the global resorcinol industry. The report highlights the various ... vivid market scenarios and analysis of primary and secondary inputs from the existing ...
(Date:7/31/2015)... KONG , July 31, 2015 China ... China,s leading provider of cord ... stem cell storage services, today announced that the Company ... the U.S. Securities and Exchange Commission. The filed Form ... ended March 31, 2015. The Form 20-F can be ...
(Date:7/31/2015)... ... July 31, 2015 , ... R-Biopharm is ... of partially hydrolyzed gluten in foods, has been accepted by AOAC International as ... Hydrolyzed Gluten in Fermented Cereal-Based Products by R5 Competitive ELISA,” based on a ...
(Date:7/30/2015)... , ... July 31, 2015 , ... Ralco is honored ... at the Lyon County Fair to be held August 5-9 in Marshall. The Ralco ... their meals come from and how agriculture impacts their daily lives. This unique exhibit ...
Breaking Biology Technology:Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 2Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 3Resorcinol Market to Grow at 6% CAGR to 2019 Says New Research Report at ReportsnReports.com 4China Cord Blood Corporation Files Its Annual Report on Form 20-F 2RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2Ralco Announces Primary Sponsorship of Ralco Enrichment Center at Lyon County Fair 2
... , DURHAM, N.C., Aug. 12 Oxygen Biotherapeutics, Inc. (OTC Bulletin ... 10-K for the fiscal year ended April 30, 2009. In addition to being available ... v , the 10-K can be downloaded from the company website at ... the Investors page. , , For the year ended April 30, ...
... , , LYNBROOK, N.Y., Aug. 12 ... company developing first in class collagenase-based products, today announced its ... , , "We were very pleased ... with Priority Review for XIAFLEX(TM) for the treatment of Dupuytren,s ...
... , , SAN DIEGO, Aug. 12 ... results for the three and six months ended June 30, 2009. , ... have the capital to complete and submit a New Drug Application (NDA) ... said Brian M. Culley, Principal Executive Officer at ADVENTRX. "Our financial ...
Cached Biology Technology:Oxygen Biotherapeutics, Inc. Files 10-K for Fiscal Year Ended April 30, 2009 2Oxygen Biotherapeutics, Inc. Files 10-K for Fiscal Year Ended April 30, 2009 3BioSpecifics Technologies Corp. Reports Second Quarter 2009 Financial Results 2BioSpecifics Technologies Corp. Reports Second Quarter 2009 Financial Results 3BioSpecifics Technologies Corp. Reports Second Quarter 2009 Financial Results 4BioSpecifics Technologies Corp. Reports Second Quarter 2009 Financial Results 5BioSpecifics Technologies Corp. Reports Second Quarter 2009 Financial Results 6ADVENTRX Pharmaceuticals Reports Second Quarter Financial Results 2ADVENTRX Pharmaceuticals Reports Second Quarter Financial Results 3ADVENTRX Pharmaceuticals Reports Second Quarter Financial Results 4ADVENTRX Pharmaceuticals Reports Second Quarter Financial Results 5ADVENTRX Pharmaceuticals Reports Second Quarter Financial Results 6ADVENTRX Pharmaceuticals Reports Second Quarter Financial Results 7
Agarose-LE, 500 g. Suitable for soft agarose cloning. Nuclease-free.Gel point (1.5%): 36 1.5 C, EEO (-mr): 1200 g/cm2. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals ....
Request Info...
Request Info...
FITC~Bovine Serum Albumin...
Biology Products: