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:7/10/2014)... , July 1, 2014 Smart ... way for convenience and improved security: NXT-ID, Inc. (OTCBB: NXTD), ... GOOG ), Apple Inc. (NASDAQ: AAPL ... Corporation (NYSE: MA) NXT-ID, Inc., (OTCQB: NXTD) a biometric ... to announce that the second series of 30 second spots ...
(Date:7/10/2014)... 3, 2014 According to the ... (Swipe And Area), Material (Optical Prism, Pizeoelectric, Capacitive, and ... and Banking & Finance), and Geography - Global Trends ... the global Fingerprint Sensors Market is projected to cross ... of 16.8% from 2014 to 2020. Browse ...
(Date:7/10/2014)... July 8, 2014 Fingerprint ... new design win (DW). An Asian OEM has selected FPC1021 ... production start in August 2014.   FPC is ... which has a planned date for start of mass production ... order of SEK 5M, for delivery in the first half ...
Breaking Biology News(10 mins):Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Fingerprint Sensors Market worth $14.35 Billion by 2020 2Fingerprint Sensors Market worth $14.35 Billion by 2020 3FPC Wins DW and Initial Ramp Order for FPC1021 Touch Sensor for Flagship Smartphone from Asian OEM 2
... report that performing angioplasty (a treatment that involves temporarily ... clogged artery to help widen it) on veins in ... effective way to treat the venous abnormalities found in ... findings were presented at the Society of Interventional Radiology,s ...
... really wants the short end of the stick, in this ... DNA-protein complexes at the ends of chromosomes, can be thought ... fusing with neighboring chromosomes. It is typical for ... time. Now a new study from Brigham and Women,s Hospital ...
... new plants that took effect on 1 January 2012 included ... that descriptions or diagnoses of new species had to be ... take full advantage of an ongoing revolution in how botanists ... to science: Many studies now routinely include the sequencing of ...
Cached Biology News:Interventional radiology: Mitigating symptoms, improving quality of life of MS patients 2Interventional radiology: Mitigating symptoms, improving quality of life of MS patients 3The long, err, short of it 2
(Date:7/10/2014)... OMICS Group’s 5th International conference and exhibition ... at Double Tree by Hilton Beijing, China is all ... & Bioanalytical research methods only to facilitate improved living ... Dr. Srinubabu Gedela, MD of OMICS Group Inc has ... one in bringing a unique and international mix of ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 Senior supply ... and professional associations, addressed the challenges of “Reducing Cost, ... Device Industries” through strategic sourcing. Describing the partnership of ... the Supply Chain Management Institute ( SCMI) of ... on June 24 at the Kroc Institute of Peace ...
(Date:7/10/2014)... 10, 2014 On July 9 ... , presented Russia,s first national ... The Company is developing a unique project called ... develops a number of innovative drugs based on monoclonal ... ceremony took place at the International Exhibition "Innoprom 2014" ...
(Date:7/10/2014)... 2014 /PRNewswire-iReach/ -- Tute Genomics, the leader ... an agreement with Lineagen, Inc., to provide ... Dx PLUS.  Lineagen, focused on the ... currently offers FirstStep Dx PLUS, a ... by healthcare providers as a first-line genetic ...
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 4Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 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 4
... Amylin Pharmaceuticals,Inc. (Nasdaq: AMLN ) will Webcast ... 2008 on Tuesday, October 21, 2008 at 5:00 p.m. ... Executive,Officer, will lead the call. On the same date ... of 2008., The call will be Webcast live ...
... Data Demonstrates 30% Reduction in Composite Events When Using Routine ... FFR Guidance in ... VOLC ) today announced the launch of the PrimeWire(TM) Pressure,Guidewire, ... s5 and,s5i imaging consoles in the U.S. The PrimeWire is ...
... Colo., Oct. 15 Bolder BioTechnology, Inc.,announced today ... Phase II Continuing,Renewal Small Business Innovation Research (SBIR) ... the National,Institute of Neurological Disorders and Stroke (NINDS) ... the entire grant award is contingent,upon the achievement ...
Cached Biology Technology:Amylin Pharmaceuticals to Webcast Third Quarter Results 2Volcano Corporation Announces Launch of PrimeWire(TM) Pressure Guidewire and s5-FFR Option for Existing Fleet of s5 IVUS Consoles 2Volcano Corporation Announces Launch of PrimeWire(TM) Pressure Guidewire and s5-FFR Option for Existing Fleet of s5 IVUS Consoles 3Volcano Corporation Announces Launch of PrimeWire(TM) Pressure Guidewire and s5-FFR Option for Existing Fleet of s5 IVUS Consoles 4Volcano Corporation Announces Launch of PrimeWire(TM) Pressure Guidewire and s5-FFR Option for Existing Fleet of s5 IVUS Consoles 5Bolder BioTechnology Receives $1.6 million NIH Grant to Continue Development of Multiple Sclerosis Drug 2
The iEMS Incubator/Shaker is a high performance microplate incubator and orbital shaker. Its superior temperature control and efficient orbital shaking reduce incubation times. It can incubate up to ...
... modified nucleotide structure called a ?cap? ... most naturally-occurring eukaryotic mRNAs and many ... for a portion of the GTP ... reaction results in the synthesis of ...
... nucleotide structure called a ?cap? is ... naturally-occurring eukaryotic mRNAs and many viral ... a portion of the GTP present ... results in the synthesis of transcripts ...
This Dedicated 18" X 18" (45.7 X 45.7 cm.) shaker platforms are optimized for a particular flask clip size. Dedicated platforms come fully loaded with flask clips....
Biology Products: