Navigation Links
Close family ties keep microbial cheaters in check, study finds
Date:12/16/2011

ontributed disproportionately to the spore body. They had cheated.

How can a blob of cytoplasm cheat? In more ways than you'd think.

"They might," says Queller, "have a mutation that makes an adhesion molecule less sticky, for example, so that they slide to the back of the slug, the part that forms spores."

"But there are tradeoffs," says Strassmann, "because if you're too slippery, you'll fall off the slug and lose all the advantages of being part of group."

Strassmann and Queller wondered if it would be possible to break the social contract among the amoebae by setting up conditions where relatedness was low, and each clonal lineage encountered mostly strangers and rarely relatives.

Together with then graduate student Jennie Kuzdzal-Fick, they set up an experiment to learn what happened to cheating as heterogeneous (low relatedness) populations of amoebae evolved.

"At the end of the experiment we assessed the cheating ability of the descendants by mixing equal numbers of descendants and ancestors, and checking to see whether the descendants ended up in the stalks or the spores of the fruiting bodies," says Strassmann.

They found that in nearly all cases the descendants cheated their ancestors. What's more, when descendant amoebae were grown as individual clones, about a third were unable to form fruiting bodies.

Many of the mutants, in other words, were "obligate" cheaters. Having lost the ability to form their own fruiting bodies, they were able to survive only by free-loading, or taking advantage of the amoebae that had retained the ability to cooperate.

This result, Queller and Strassmann say, shows that cheater mutations that threaten multicellularity occur naturally and are even favored--as long as the population of amoebae remains genetically diverse.

But the scientists were aware that obligate cheaters are either very rare or altogether missing among wild social amoe
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Researchers closer to the super bug puzzle
2. Underage drinking among close friends high indicator of future alcohol use by black teens
3. Ready for their close-up
4. Lung regeneration closer to reality with new discovery by Weill Cornell Medical College researchers
5. Scientists move closer to predicting who will and will not fight off severe infections
6. Close up look at a microbial vaccination program
7. New threat closes in on iconic Galápagos wildlife
8. New discovery brings customized tuberculosis therapies based on genotype closer to reality
9. Discovery of natural antibody brings a universal flu vaccine a step closer
10. Scientists a step closer to understanding natural antifreeze molecules
11. IOF calls for improved strategies to close the treatment gap and reduce future burden of fractures
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Close family ties keep microbial cheaters in check, study finds
(Date:7/21/2015)... OXFORD, Connecticut , July 21, 2015 /PRNewswire/ ... the "Company"), a biometric authentication company focused on ... the Wocket® smart wallet, announces that it has ... Tokenization System and Method. This ... that not only authorizes an account, but also ...
(Date:7/9/2015)... JOSE, Calif. , July 9, 2015  Synaptics ... interface solutions, announced today that it will report financial ... on Thursday, July 30, 2015 after the close of ... for analysts and investors at 2:00 p.m. PT (5:00 ...   To participate on the live call, ...
(Date:7/8/2015)... LAKES , N.J. and NEW YORK ... Company) and Guidepoint today announced BD ... start-up healthcare companies with free access to Guidepoint,s expert ... several start-ups that are developing cutting-edge technologies to improve ... a dedicated Guidepoint research manager, each start-up entrepreneur will ...
Breaking Biology News(10 mins):NXT-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 to Report Fourth Quarter, Fiscal Year 2015 Results on July 30 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 2BD and Guidepoint Team to Connect Healthcare Start-up Companies With Business and Scientific Experts 3
... Despite research efforts to find modern factors that would ... the gap is actually ancient and universal, according to ... almost every country, and the sex difference in lifespan ... said Daniel J. Kruger, a research scientist in the ...
... small, inexpensive remote-control plane as a sensing tool, also known ... team plans to test it over the Konza Prairie Biological ... performs as the team hopes, it will be made available ... it to obtain high-resolution images and reliable data. , The ...
... has been developed, which quite literally sucks the life ... place ozone-depleting chemicals, like methyl bromide, which are currently ... called metabolic stress disinfection (MSDD), was developed by Manuel ... (Journal of the Science of Food and Agriculture DOI ...
Cached Biology News:Evolutionary forces explain why women live longer than men 2K-Staters design and build a low-cost remote sensing tool for environmental studies 2K-Staters design and build a low-cost remote sensing tool for environmental studies 3
(Date:8/3/2015)... (PRWEB) , ... August 03, 2015 , ... ... TLD5000 diaphragm vacuum pumps to its comprehensive line of analytical laboratory equipment. With ... valves, these versatile pumps provide a chemically resistant and maintenance-free solution for a ...
(Date:7/31/2015)... ... July 31, 2015 , ... Global ... and premium industry insights on the global resorcinol industry. The report highlights the ... of vivid market scenarios and analysis of primary and secondary inputs from the ...
(Date:7/31/2015)... ... July 31, 2015 , ... R-Biopharm is proud to announce ... gluten in foods, has been accepted by AOAC International as Official First Action ... Fermented Cereal-Based Products by R5 Competitive ELISA,” based on a specific monoclonal antibody ...
(Date:7/30/2015)... AACC welcomed thousands of medical professionals ... Meeting & Clinical Lab Expo in ... showcased revolutionary advancements in clinical testing technology and ... to diagnose patients quickly and accurately and make ... As of Wednesday, July 29, more than ...
Breaking Biology Technology:Sterlitech Launches New Line of Vacuum Pumps 2Resorcinol 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 4RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4
... San Francisco, CA, March 18, 2011 Cytokinetics, Incorporated ... in the March 18, 2011 issue of the journal ... by an investigational drug candidate, omecamtiv mecarbil, and the ... for patients with systolic heart failure. This publication ...
... Quest Diagnostics Incorporated (NYSE: DGX ), ... its ColoVantage test has been approved by New York ... in the state. It is believed to be the ... blood specimen to be approved by the state.   ...
... Life Sciences Holdings, Inc. (OTC Bulletin Board: ADLS ... and webcast discussing the Company,s 2010 fourth quarter and full-year ... (EDT). Michael T. Flavin, Ph.D., Chairman & Chief Executive Officer, ... also present an update on the Company. A press release ...
Cached Biology Technology:Cytokinetics announces fundamental research in cardiac myosin activation in the journal Science 2Cytokinetics announces fundamental research in cardiac myosin activation in the journal Science 3New York State Approves the Quest Diagnostics ColoVantage™ Colorectal Cancer Blood Test 2New York State Approves the Quest Diagnostics ColoVantage™ Colorectal Cancer Blood Test 3Advanced Life Sciences to Host 2010 Fourth Quarter and Full-Year Financial Results Conference Call and Webcast 2
... The inductive drives of VARIOMAG Magnetic ... as motors, belts, or mechanical bearings, making ... In addition, the VARIOMAG inductive drive can ... water, dust or microorganisms. This is why ...
PTFE/red rubber septum silver aluminum seal ,11 mm seal diam. ...
...
... is an enzyme that catalyzes the ... maltose, maltotriose, and dextrins. The,level of ... human body is of,clinical significance in ... and diabetes; plant and microbial a-amylases ...
Biology Products: