Navigation Links
Study of planarians offers insight into germ cell development

nanos in mature adults caused their ovaries and testes to disappear. And when the researchers blocked nanos expression in planarians that had had their bodies and reproductive organs detached from their brains, the planarians regenerated new bodies, but with no reproductive cells.

"This is the first time that nanos gene function has been studied in a non-traditional model organism," Newmark said. "This is important because planarians, like mammals, seem to make their germ cells by an inductive mechanism. So we’re hoping that we can use the molecular biological tools available for studying planarians to get at the mechanisms that tell a cell: ‘You’re going to be a germ cell.?"

S. mediterranea also has the ability to reproduce asexually: It clones itself by means of fission. In looking at nanos in asexual individuals of this species, the researchers made the surprising discovery that these asexual individuals also express nanos and produce germ cells. Some other mechanism, as yet unknown, prevents these germ cells from developing into functional testes and ovaries.

"Having a simple organism that also uses inductive signaling is going to help us tease apart the more conserved mechanisms (of germ cell development and maintenance)," Newmark said. "We hope that this information will also prove informative for understanding these processes in higher organisms."
'"/>

Source:University of Illinois at Urbana-Champaign


Page: 1 2

Related biology news :

1. Novel Asthma Study Shows Multiple Genetic Input Required; Single-gene Solution Shot Down
2. Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs
3. UCLA Study Shows One-Third of Drug Ads in Medical Journals Do Not Contain References Supporting Medical Claims
4. Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible
5. Study Links Ebola Outbreaks To Animal Carcasses
6. Breakthrough Microarray-based Technology for the Study of Cancer
7. NYU Study Reveals How Brains Immune System Fights Viral Encephalitis
8. Study finds more than one-third of human genome regulated by RNA
9. Leukemia Drug Breakthrough Study In New England Journal Of Medicine
10. Study identifies predictors of HIV drug resistance in patients beginning triple therapy
11. New Study from Affymetrix Laboratories Points to Changing View of How Genome Works
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Study planarians offers insight into germ cell development

(Date:9/30/2014)... the environmental effects of moorland burning is published today ... with the aim of relieving tensions on both sides ... EMBER (Effects of Moorland Burning on the Ecohydrology of ... moorland, which is practised predominantly to support red grouse ... peat hydrology, peat chemistry and physical properties, river water ...
(Date:9/30/2014)... The most comprehensive assessment conducted by the Ocean ... out of 100 in overall health. In addition, ... Antarctic and the 15 ocean regions beyond national ... maintaining a healthy climate, safeguarding biodiversity and providing ... update of the index, a partnership led by ...
(Date:9/30/2014)... Calif. The National Institutes of Health (NIH) ... today to develop an electrode array system that ... brain works through unprecedented resolution and scale. , ... to support President Obama,s BRAIN (Brain Research ... research effort to revolutionize our understanding of the ...
Breaking Biology News(10 mins):Grouse moor burning causes widespread environmental changes 2Rating the planet's oceans 2Rating the planet's oceans 3NIH taps lab to develop sophisticated electrode array system to monitor brain act 2NIH taps lab to develop sophisticated electrode array system to monitor brain act 3
... (ODS) at the National Institutes of Health (NIH) announces ... Bibliography of Significant Advances in Dietary Supplement Research. The ... by government, industry, and academic institutions, as well as ... of laboratory, human studies, and observational studies in the ...
... powerful antioxidant in green tea may prevent or delay ... Georgia researchers say. Researchers were testing EGCG, green ... 1 diabetes and primary Sjogren,s syndrome, which damages moisture-producing ... study focused on Sjogren,s syndrome, so learning that EGCG ...
... Washington, DCGeorgetown University Medical Center and Oak ... between the institutions that formalizes their research ... researchparticularly in the areas of structural biology, ... biology. The Comprehensive Research and Development ...
Cached Biology News:Annual Bibliography of Significant Advances in Dietary Supplement Research 2007 2Green tea may delay onset of type 1 diabetes 2Green tea may delay onset of type 1 diabetes 3GUMC and Oak Ridge National Labs announce unique research partnership 2GUMC and Oak Ridge National Labs announce unique research partnership 3
(Date:10/1/2014)... San Francisco, California (PRWEB) October 01, 2014 ... grant from the National Science Foundation to expand their ... approaches to build and modify DNA. The Small Business ... help commercialize the “j5” technology under exclusive license from ... the Joint BioEnergy Institute , an LBNL laboratory ...
(Date:9/30/2014)... 2014 Applying a well-known optical phenomenon called ... University has demonstrated the ability to "paint" ultra-thin ... holds promise for making future, flexible electronic devices, ... of next-gen rocket ships and spacecraft with extremely ... oil in water, it becomes iridescent, revealing a ...
(Date:9/30/2014)... 30, 2014 Shimadzu Scientific Instruments ... easy-to-use and highly precise tool for measuring displacement ... elongation. With 1000-mm maximum movement distance, the DSES-1000 ... a gauge length of 10 mm. In addition, ... above 50-mm stroke and within +/- 100 µm ...
(Date:9/30/2014)... 30, 2014  RegeneRx Biopharmaceuticals, Inc. (OTC: RGRX) ... has received a Canadian Patent for Inhibition or ... patent includes claims using thymosin beta 4, various ... for these purposes.  The patent will expire in ... ( www.regenerx.com ) RegeneRx is ...
Breaking Biology Technology:TeselaGen Receives $750k NSF SBIR Phase II Award 2TeselaGen Receives $750k NSF SBIR Phase II Award 3Taking thin films to the extreme 2Shimadzu’s New Long-Travel Extensometer Increases Precision for Soft Material Testing 2RegeneRx Receives Canadian Patent for Inhibition or Reversal of Skin Aging 2
... Ind. - Researchers are edging toward the creation ... of ultra-efficient transmission of light, with potential applications ... The metamaterial - layers of silver and titanium ... dramatically changes the properties of light. The light ...
... CRANBURY, N.J., May 25, 2012  Oncobiologics, Inc. announced ... positions with established biopharmaceutical industry experts. Stephen J. ... and Vincent J. Benn, Ph.D. has joined the ... The company also announced its new Scientific Advisory ...
... ANAHEIM, Calif., May 24, 2012 Questcor Pharmaceuticals, Inc. (NASDAQ: ... present at the Jefferies 2012 Global Healthcare Conference in New ... 8:00 a.m. ET. A live webcast and subsequent ... http://ir.questcor.com/events.cfm .  The replay will be available for approximately 90 ...
Cached Biology Technology:'Metamaterials,' quantum dots show promise for new technologies 2Oncobiologics Fills Key Leadership Positions and Names Scientific Advisory Board 2Oncobiologics Fills Key Leadership Positions and Names Scientific Advisory Board 3Questcor Pharmaceuticals to Present at Jefferies 2012 Global Healthcare Conference 2
This application changes sensitive keywords in an FCS file to remove patient information. It was contributed by Dr. David Miller....
... Anti-Natural Killer Cell Receptor-P1, clone ... Hybridoma produced by ... BALB/c mice immunized (BALB/c X ... cells and mouse myeloma cellline. ...
Phospho-SEK1/MKK4 (Thr261) Antibody...
Rabbit polyclonal to Warfarin ( Abpromise for all tested applications). Antigen: Chemical / Small Molecule conjugated to KLH...
Biology Products: