Navigation Links
Evolutionary 'winners' and 'losers' revealed in collaborative study
Date:3/22/2011

HOUSTON, March 22, 2011 In a study that literally analyzed competing bacteria fighting it out to the death, a University of Houston (UH) researcher and his colleagues identified evolutionary 'winners' and 'losers.' Continuing research to understand the basis of these fates may become a useful tool is designing roadblocks to antibiotic resistance.

In collaboration with scientists at Michigan State University (MSU), UH evolutionary biologist Timothy Cooper and his graduate student Utpala Shrestha were co-authors on a paper titled "Second-Order Selection for Evolvability in a Large Escherichia coli Population." The report appeared March 18 in Science, the world's leading journal of original scientific research, global news and commentary.

"The project found that bacteria growing for thousands of generations in an environment containing glucose as the only food had evolved to be better at getting better," Cooper said. "We found that two lineages of bacteria arose and competed in a single experimental population. The lineage that initially grew more slowly, yet had the potential to evolve more rapidly, was the evolutionary 'winner.' This is surprising because it's usually thought that competition is decided by what competitors can do now and not what they are capable of in the future."

As genetic changes occurred, making some individuals better competitors on the glucose food, other individuals that did not quickly get their own beneficial mutations were outcompeted and went extinct. Down the line, understanding the benefits of evolving quickly like this will be a useful tool to predict such things as antibiotic resistance and the evolution of infectious disease. Cooper said this knowledge may one day help scientists design intervention strategies that make the evolution of these traits less likely to occur.

The work done by Cooper and Shrestha at UH established the specific genetic changes occurring during this ba
'/>"/>

Contact: Lisa Merkl
lkmerkl@uh.edu
713-743-8192
University of Houston
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Homoplasy: A good thread to pull to understand the evolutionary ball of yarn
2. UMass Amherst biologists use GPS to map bats teeth to explore evolutionary adaptations to diet
3. New evolutionary research disproves living missing link theories
4. Different evolutionary paths lead plants and animals to the same crossroads
5. New research traces evolutionary path of multidrug-resistant strep bacteria
6. SU scientists find that in the evolutionary mating game, brawn and stealth rule
7. Extinctions, loss of habitat harm evolutionary diversity
8. Evolutionary arms race between smut fungi and maize plants
9. Powdery mildew at an evolutionary dead end
10. SomaLogic researchers describe revolutionary new approach to protein analysis and application to early diagnosis of lung cancer
11. Study rewrites the evolutionary history of C4 grasses
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Evolutionary 'winners' and 'losers' revealed in collaborative study
(Date:8/20/2014)... of 158 pregnant teenagers in Rochester, NY, nearly half ... of ice, cornstarch, vacuum dust, baby powder and soap, ... , Moreover, such teens had significantly lower iron levels ... substances. , Pregnant teens, regardless of pica, are at ... iron deficiency and anemia. Low iron in pregnant teens ...
(Date:8/20/2014)... , Aug. 20, 2014 /CNW/ -  Issue ... and can quickly become life threatening for some children.    ... as 1.2 million Canadians have food allergies and this number ... cent of children are estimated to have food allergies.  ... mild skin irritations and hives to breathing difficulties and loss ...
(Date:8/20/2014)... WORCESTER, MA Using population-based screening outcomes of approximately ... states, including four researchers at the University of Massachusetts ... combined immunodeficiency (SCID) can be successfully implemented across public ... programs published in the Aug. 20 issue of the ... JAMA ) showed the rate of SCID in newborns ...
Breaking Biology News(10 mins):Pica in pregnant teens linked to low iron 2Information Update - Allergens and food safety at school - What's in your child's lunch? 2Information Update - Allergens and food safety at school - What's in your child's lunch? 3Newborn screening expansion offers early diagnosis and treatment to infants with SCID 2Newborn screening expansion offers early diagnosis and treatment to infants with SCID 3
... 2007 Today, researchers report for the first ... that are inherited only from the motherare directly linked ... study, which highlights the role of mitochondrial genome variation ... in Genome Research ( www.genome.org ). ...
... (NPL) is part of Biotesting Europe, a new 358,000 ... will ensure that future testing procedures and facilities meet ... in this growing industry. Biometric recognition systems measure ... can be as varied as iris images, fingerprints, the ...
... smoking can be harmful, if not deadly. While the desire ... factors also play an important role. The etiology of these ... the environment. Adoption and twin studies have shown that the ... studies have provided evidence that ones sex can influence the ...
Cached Biology News:Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes 2UK scientists working to help cut ID theft 2Does the desire to consume alcohol and tobacco come from our genetic makeup? 2Does the desire to consume alcohol and tobacco come from our genetic makeup? 3
(Date:8/19/2014)... , Aug. 19, 2014 CSSi, the leader ... recently announced the formation of the company,s Medical and ... the addition of Dr. William E. Gannon, Jr. ... http://photos.prnewswire.com/prnh/20140818/136957 The MCAB, with Dr. ... of therapeutic areas and set strategic goals for the ...
(Date:8/19/2014)... 19, 2014 /PRNewswire/ - iCo Therapeutics Inc. ("iCo" or ... results of its Oral Amphotericin B (Oral Amp ... study, conducted by ImmuneCarta®, the immune monitoring business ... effectiveness of Oral Amp B in reactivating latent ... despite intensive treatment with antiretroviral therapy. ...
(Date:8/18/2014)... Tampa, FL (Aug. 18, 2014) -- A new ... South Florida (USF) Morsani College of Medicine and ... the life-threatening complications of interventional cardiovascular disease treatment. ... model that the novel molecular therapy could selectively ... healing following a medical procedure using a balloon ...
(Date:8/18/2014)... Aug. 18, 2014   Sterne, Kessler, Goldstein & ... Washington, DC , announced today that ... Review (IPR) with the U.S. Patent and Trademark ... of BioReference Laboratories, Inc. (Nasdaq: BRLI).  These IPR petitions ... by Myriad Genetics, Inc. These patents have been asserted ...
Breaking Biology Technology:CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 3iCo Therapeutics Announces Positive Oral Amphotericin B Study Results 2iCo Therapeutics Announces Positive Oral Amphotericin B Study Results 3Selective therapy may improve artery repair after interventional cardiovascular procedures 2Selective therapy may improve artery repair after interventional cardiovascular procedures 3Sterne Kessler Files 11 IPR Petitions On Behalf Of GeneDx, Inc., Subsidiary Of BioReference Laboratories, Inc. 2Sterne Kessler Files 11 IPR Petitions On Behalf Of GeneDx, Inc., Subsidiary Of BioReference Laboratories, Inc. 3
... NOVATO, Calif., March 31 BioMarin,Pharmaceutical Inc. (Nasdaq ... (AnGes), BioMarin,s marketing and distribution partner in Japan, ... from the Japanese Ministry of Health, Labour and ... VI ( MPS,VI)., "We are proud to ...
... performance module implemented in just few months, organization kicks ... ... personal growth, OTTAWA, March ... employee performance and talent management software,today announced that Beaumont Hospitals ...
... March 31 Transave Inc.,reported today that its ... have the ability to penetrate mucus and,biofilms, and ... patients with cystic fibrosis, according to results of ... Results of the study titled "Biofilm penetration, ...
Cached Biology Technology:Naglazyme Approved by Japanese Ministry of Health 2Naglazyme Approved by Japanese Ministry of Health 3Naglazyme Approved by Japanese Ministry of Health 4Beaumont Hospitals in Michigan Selects Halogen Software for Pay for Performance System 2Study Confirms Anti-Infective ARIKACE(TM) Effectively Penetrates Mucus and Biofilm, and Kills Pseudomonas, a Bacteria Plaguing Cystic Fibrosis Patients 2Study Confirms Anti-Infective ARIKACE(TM) Effectively Penetrates Mucus and Biofilm, and Kills Pseudomonas, a Bacteria Plaguing Cystic Fibrosis Patients 3Study Confirms Anti-Infective ARIKACE(TM) Effectively Penetrates Mucus and Biofilm, and Kills Pseudomonas, a Bacteria Plaguing Cystic Fibrosis Patients 4
LECHNER AND LaVECK MEDIUMfor the clonal growth of normal human bronchial and other epithelial cells. Requires additives. With glutamine.Recommended storage condition:oC to 8oCIntended use(s):research...
...
... Modules Highly efficient ... cloning into advanced λ ... For flexibility ... Systems, the modules of ...
... While antigen and antibody-based immunoaffinity ... been reused many times without compromising ... extremes and chaotropic agents has precluded ... Western blotting. The CHEMICON Re-Blot ...
Biology Products: