Navigation Links
Cheating -- and getting away with it
Date:1/11/2013

a gene) confer an advantage in the first place? And if cheating benefits the cheater and has no hidden cost, what holds cheating in check?

Cheating is surprisingly easy

D. discoideum spend most of their lives as predatory single cells hunting bacteria through the leaf litter and upper soil layers of forests in eastern North America. But when they can't find bacteria and begin to starve, they gather to form fruiting bodies, a thin stalk of cells with a ball of spores at the top, like a miniature Space Needle. The amoebae that end up in the stalk die, giving up their lives to benefit the amoebae that become spores.

Importantly the cells that stream together to form the fruiting body can be clonal (genetically identical) or have two (or more) genetic makeups. If each clone in a two-clone fruiting body contributes half the cells to the spore body, both clones gain from cooperating because each must sacrifice fewer cells to the stalk.

But game theory suggests the clones should sometimes evolve strategies that allow them to gain the benefits of cooperation without paying the costs.

In 2008 Queller and Strassmann published a genome-wide screen of D. discoideum that found roughly 180 cooperation genes, genes that might produce cheaters if they mutated. The number of genes, and the number of different biological pathways they affected, suggested it might be easy to evolve cheating and difficult to control it fully.

At the time cheaters were believed to be held in check by mechanisms that made non-cooperation costly. The first D. discoideum cheater to be scrutinized, CheaterA, described in 2000, is not able to form fruiting bodies on its own. This is a crippling disability that would prevent it from surviving in the wild.

But the screen from 2008 selected only clones able to produce clonal fruiting bodies, thus passing a basic test of evolutionary fitness. These clones were what is called
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Overweight pregnant women not getting proper weight-gain advice
2. Texas cotton getting a genetic tune-up
3. Getting (drugs) under your skin
4. For young birds, getting stressed out can be a good thing
5. Getting to the root -- unearthing the plant-microbe quid pro quo
6. Carbon is key for getting algae to pump out more oil
7. University of Tennessee anthropologists find American heads are getting larger
8. Scripps Florida scientists identify neurotranmitters that lead to forgetting
9. Light weights are just as good for building muscle, getting stronger, researchers find
10. Why getting healthy can seem worse than getting sick
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Cheating -- and getting away with it
(Date:7/11/2014)... the Department of Energy,s Oak Ridge National Laboratory ... R&D Magazine in recognition of the year,s top ... tremendous value of our National Labs," said Secretary ... the National Labs continues to help our nation ... and technological innovations necessary to remain globally competitive." ...
(Date:7/11/2014)... release is available in German . ... a method that uses the refraction of X-rays through ... images produced with this method are often of much ... in the team of Prof. Franz Pfeiffer are particularly ... and therapy including X-ray phase-contrast imaging. One main ...
(Date:7/11/2014)... with other group members to reduce aggression and gain ... strategy for grooming activities shows a certain pattern across ... scientific journal Biology Letters . , Grooming between ... without ulterior motives. To be groomed has hygienic benefits ... another individual can provide access to infants, mating opportunities ...
Breaking Biology News(10 mins):ORNL wins eight R&D 100s 2ORNL wins eight R&D 100s 3ORNL wins eight R&D 100s 4New simple setup for X-ray phase contrast 2Baboons groom early in the day to get benefits later 2
... December 15, 2009 Signal Hill, CA Tom ... public and president of Bowman Global Change, has developed ... the fourth Intergovernmental Panel on Climate Change (IPCC) report ... to the authentic scientific information they need to make ...
... , REDWOOD CITY, Calif., Dec. ... and authentication solutions, today announced an agreement with IBM ... fingerprint technology on IBM SurePOS 500 retail systems. The ... easily and quickly identify users so that specific transactions ...
... ... Dec. 8, 2009 National Instruments (Nasdaq: NATI ), ... a leader and pioneer in manufacturing automation using robotics technology, ... technology with DENSO robotic arms. The collaboration increases productivity and ...
Cached Biology News:Bowman creates graphic translation of climate change data 2DigitalPersona Fingerprint Sensor Technology Ships on IBM SurePOS 500 Retail Systems 2National Instruments and DENSO Robotics Collaborate to Address New Applications in Industrial Robotics 2National Instruments and DENSO Robotics Collaborate to Address New Applications in Industrial Robotics 3National Instruments and DENSO Robotics Collaborate to Address New Applications in Industrial Robotics 4National Instruments and DENSO Robotics Collaborate to Address New Applications in Industrial Robotics 5
(Date:7/10/2014)... CA (PRWEB) July 10, 2014 OMICS ... Bioanalytical techniques during 18-20 August, 2014 at Double Tree ... review the recent developments in Analytical & Bioanalytical research ... globe. , Speaking on this occasion, Dr. Srinubabu Gedela, ... Analytica Acta conference is a remarkable one in bringing ...
(Date:7/10/2014)... 10, 2014  Franciscan St. Anthony Health-Crown ... for respiratory monitoring outside the operating room, ... in embracing state-of-the-art patient safety technology. ... breathing and can alert medical caregivers when ... amount of carbon dioxide the patient is ...
(Date:7/10/2014)... PROVO, Utah , July 10, 2014 ... genome annotation and interpretation, today announced an ... sequencing (NGS) analytics for Lineagen,s NextStep Dx ... evaluation of neurodevelopmental and neurological disorders, currently ... chromosomal microarray (CMA) testing service used by ...
(Date:7/10/2014)... D.C., April 15, 2014 -- According to the ... to nuclear security comes from terrorists acquiring sufficient ... to construct a crude nuclear explosive device. The ... nuclear trafficking have involved gram-level quantities, which can ... , According to a new study appearing this ...
Breaking Biology Technology:A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Franciscan St. Anthony Health-Crown Point Underscores Patient Safety Commitment Through Expanded Use of Capnography 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Sensitive detection method may help impede illicit nuclear trafficking 2
... Corporation, (OTC Bulletin Board: CDXC) a leader in ... financial results for the 2008 Fiscal Year. On ... Generally Accepted Accounting Principles (U.S. GAAP), ChromaDex announced ... $0.07 per share for the twelve months ended ...
... April 3 InterMune, Inc. (Nasdaq: ITMN ) ... Officer of InterMune, will present at the Canaccord Adams Hepatitis ... To access a live audio webcast of the presentation, ... investor relations page of InterMune,s corporate website at www.intermune.com ...
... Inc. (Nasdaq: TPTX ) today announced that on ... Qualifications Department of the Nasdaq Stock Market ("Nasdaq") notifying the ... in its Annual Report on Form 10-K for the year ... the minimum stockholders, equity requirement of $10 million for continued ...
Cached Biology Technology:ChromaDex Announces 2008 Year End Financial Results 2ChromaDex Announces 2008 Year End Financial Results 3TorreyPines Therapeutics Receives Notice of Non-Compliance with Nasdaq Continued Listing Requirements 2
...
... Crystal / Mount is the standard water ... designed especially for the permanent preservation of ... It is easy to use and exhibits ... the first aqueous mounting medium that permits ...
Antibodies were affinity purified using epitopes specific to XLF immobilized on solid support....
Request Info...
Biology Products: