Navigation Links
Making the ultimate family sacrifice
Date:11/25/2008

ve side-by-side in the wild. Earlier studies also showed that unrelated strains could cooperate within the same colony. Ostrowski said scientists took this to mean that unrelated or distantly related strains of D. discoideum often joined forces in the wild.

Using modern genetic technology, Ostrowski was able to put that assumption to a more rigorous test than ever before. She said BCM co-author Mariko Katoh played a key role by designing experiments and developing the method of tagging wild strains of D. discoideum with different fluorescent markers to see how the strains cooperate spatially and temporally during colony formation. Using these markers and Ostrowski's precise genetic profiles, the research team was able to determine exactly how much mixing occurred between dissimilar strains.

Queller, Rice evolutionary biologist Joan Strassmann and Gad Shaulsky, professor of molecular and human genetics at BCM, previously collaborated on a genome-wide search for mutations that produce D. discoideum cheaters. The search identified more than 100 mutations that would allow D. discoideum to cheat by avoiding service in the stalk.

The new findings suggest that specific genes also help closely related individuals cooperate in ways that keep these cheaters in check.

"We're showing that strains may not be mixing as much as scientists previously thought," Ostrowski said.

Shaulsky said, "By segregating, they minimize the risk that cells of their genetic similarity will die."

Ostrowski said the results suggest that "cooperative" genes are likely those that produce the sticky adhesives that the amoebae secrete to grab onto one another during colony formation. She said follow-up research is already under way to find precisely which genes are involved.

Strassmann, Rice's Harry C. and Olga K. Wiess Professor of Ecology and Evolutionary Biology and chair of the Department of Ecology and Evoluti
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert

0

GOOD

Page: 1 2 3

Related biology news :

1. Scientists present moving theory behind bacterial decision-making
2. Making flies sick reveals new role for growth factors in immunity
3. Making metabolism more inefficient can reduce obesity
4. The making of Dig It! the Secrets of Soil exhibit
5. Making snack food choices
6. NIST trumps the clumps: Making biologic drugs safer
7. Small protein may have big role in making more bone and less fat
8. Research suggests parts of UK could be too hot for wine making by 2080
9. Research suggests parts of UK could be too hot for wine-making by 2080
10. Findings a step toward making new optical materials
11. Making sure the wonder materials dont become the wonder pollutant
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/19/2013)... Elsevier, a world-leading provider of scientific, technical and medical ... launch of a new open access journal, GeoResJ ... , Elsevier,s earth and planetary science journals portfolio has ... to provide a forum for rapid publication of top ... will be co-edited by six Executive Editors, each covering ...
(Date:6/18/2013)... the University of Calgary,s Faculty of Medicine have discovered ... from harmful bacteria. Platelets, a component of blood typically ... specific bacteria, and upon detection, seal it off from ... published in Nature Immunology this week, provide ... , "The science community has known that platelets do ...
(Date:6/18/2013)... environmental engineer has been awarded a $394,300 grant ... water quality and flow in the new facilities ... Kruzic, UT Arlington associate professor of civil engineering, ... add monochloramine to the water in an effort ... stations and pipelines. Adding monochloramine is widely practiced ...
Breaking Biology News(10 mins):Immunity mechanism discovered 2UT Arlington research to benefit quality, flow in 150-mile Integrated Pipeline 2
... orchids have been found to rely on a wide ... of the soil instead of producing their own organic ... the open access journal BMC Biology , also ... and Mlanie Roy, from the Centre d,Ecologie Fonctionnelle et ...
... Carnegie Mellon University have developed an analytical technique to ... disease syndromes such as diabetes, asthma and cancer, which ... Rather than searching one at a time for genetic ... as in most conventional approaches, the Carnegie Mellon scientists ...
... Water striders, the familiar semi-aquatic bugs gliding across the ... allows them to walk on water. This was not ... evolution of a unique arrangement of the legs, with the ... of Ecology and Evolutionary Biology have discovered the gene behind ...
Cached Biology News:Carnegie Mellon develops innovative method to detect genetic causes of complex diseases 2
(Date:6/19/2013)... Clinverse, Inc. , a ... trials, today announced it will be exhibiting and ... in Boston, June 24-26, 2013. Clinverse’s eClinical ... fully configurable, cloud-based clinical financial lifecycle system. , ... Clinverse’s eClinical Commerce Network, automates site contract set-up ...
(Date:6/19/2013)... Calif. , June 19, 2013 ... plant, stool and other challenging microbial nucleic acid ... Protein Extraction Kit, for extraction of pure protein ... protein world coincides with the 20 th ... growing innovation capabilities. (Photo: http://photos.prnewswire.com/prnh/20130619/LA32633 ...
(Date:6/19/2013)... CLEVELAND , June 19, 2013   NineSigma ... announced that a year following its launch, NineSights.com ... and a focal point for the worldwide community of ... to climate and environmental sustainability experts, NineSights stands out ... broad range of scientific and technical disciplines, all vetted ...
(Date:6/19/2013)... (PRWEB) June 19, 2013 Today DuPont ... young people to become leaders in the greatest challenge ... billion people in 2050. Borel spoke at the ... Conference in Atlanta, about urgent need for students to ... are local, science-based, sustainable and reached in collaboration with ...
Breaking Biology Technology:Clinverse, Inc. Exhibiting and Showcasing Its Technology at DIA 2013 2MO BIO Laboratories, Inc. launches the first kit for protein extraction from soil 2NineSigma Evolves Global Open Innovation through Social Media Platform, NineSights 2NineSigma Evolves Global Open Innovation through Social Media Platform, NineSights 3DuPont Leader Calls for New Generation of Food Visionaries to Fight Hunger 2
... Purpose , ... this series describes an LC/MS/MS method for the simultaneous determination ... FK-506), Sirolimus (SIR, aka Rapamycin) and Everolimus (EVE, aka RAD-001) ... robust hardware configuration and shows to be fast and simple, ...
... , ... As the study of protein biomarkers increases in ... protein pathway information and discovery-based proteomics experiments. Even larger numbers of ... gene expression studies or other genomic information. , ...
... Purpose , ... non-nucleoside reverse transcriptase inhibitor (NNRTI) antiretroviral drugs is of significant ... metabolism variability. To be of practical use, it is essential ... fast and easy to perform, with minimal sample preparation, and ...
Cached Biology Technology:A new LC/MS/MS Research Method for Rapid Quantitation of Five Immunosuppressant Drugs, including Mycophenolic Acid (MPA) 2A new LC/MS/MS Research Method for Rapid Quantitation of Five Immunosuppressant Drugs, including Mycophenolic Acid (MPA) 3A new LC/MS/MS Research Method for Rapid Quantitation of Five Immunosuppressant Drugs, including Mycophenolic Acid (MPA) 4A new LC/MS/MS Research Method for Rapid Quantitation of Five Immunosuppressant Drugs, including Mycophenolic Acid (MPA) 5Multiplexed Quantitative Peptide Assays for Protein Biomarkers of Cardiovascular Disease in Human Plasma 2Multiplexed Quantitative Peptide Assays for Protein Biomarkers of Cardiovascular Disease in Human Plasma 3Multiplexed Quantitative Peptide Assays for Protein Biomarkers of Cardiovascular Disease in Human Plasma 4Multiplexed Quantitative Peptide Assays for Protein Biomarkers of Cardiovascular Disease in Human Plasma 5A simple and rapid LC-MS/MS method for the simultaneous determination of nine antiretroviral drugs commonly used in Europe (protease Inhibitors and non-nucleoside reverse transcriptase inhibitors) 2A simple and rapid LC-MS/MS method for the simultaneous determination of nine antiretroviral drugs commonly used in Europe (protease Inhibitors and non-nucleoside reverse transcriptase inhibitors) 3A simple and rapid LC-MS/MS method for the simultaneous determination of nine antiretroviral drugs commonly used in Europe (protease Inhibitors and non-nucleoside reverse transcriptase inhibitors) 4
... for quick and reproducible immunoprecipitation (IP) by using ... more reproducible than regular IPs, which are problematic ... without disrupting the agarose bed. The binding of ... reversible, and elution of the immune complex can ...
... Kit (V2), 2 x 11K will ... of many thousands of yeast genes ... biological processes. Each microarray contains sequences ... from the S288C strain of Saccharomyces ...
... require screening through a huge volume ... data from normal biologic diversity. The ... available to help better manage the ... inherent to biomarker discovery. The CiphergenExpress ...
... Immunoprecipitation kit allows a rapid and ... active FLAG-tagged protein. The immunoprecipitation is ... is a highly specific monoclonal antibody ... use of affinity resin allows an ...
Biology Products: