Navigation Links
Evolution can select for evolvability, Penn biologists find
Date:11/14/2013

system were as much as eight times more common than would be expected by chance alone and more common than mutations that affected other parts of the VlsE protein. In addition, the rate of mutation at the unexpressed cassettes was greater than that at other locations in the bacterial genome.

Taken together, the results provide direct evidence that evolvability was the target of natural selection. The researchers note, however, that this doesn't mean that "natural selection for evolvability" is necessarily a common trait across all living things.

"It would be incredibly difficult to demonstrate this for free-living eukaryotic organisms, like humans," Brisson said. "But we can now say that evolvability can be the object of selection in the face of environmental pressure."


'/>"/>

Contact: Katherine Unger Baillie
kbaillie@upenn.edu
215-898-9194
University of Pennsylvania
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Penn team elucidates evolution of bitter taste sensitivity
2. Fast-mutating DNA sequences shape early development; guided evolution of uniquely human traits
3. Targeting evolution: Could this be the next strategy to stop superbugs?
4. Alfred Russel Wallace: Co-founder of the theory of biological evolution
5. Climate change and coevolution: Weve done the math
6. Grazers and pollinators shape plant evolution
7. Evolutionary medicine of skin cancer risk among Europeans
8. Recent highlights in Molecular Biology and Evolution
9. Fear of holes may stem from evolutionary survival response
10. Penn biologists show that generosity leads to evolutionary success
11. Biometrics Can Revolutionise Mobile Payment Security, says Frost & Sullivan
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... German . ... risky situations such as exposure to predators. Researchers from ... a long-term study on different populations of great tits ... ambient temperature. High metabolic rates and low temperatures were ... birds were more likely to approach potential predators. , ...
(Date:9/30/2014)... of perilous threats in today,s ocean. From overfishing ... fragile coral ecosystems are disappearing at unprecedented rates ... of corals surrounding the island of Moorea in ... tropical environment: coral guard-crabs. New research from the ... scientist Seabird McKeon and the museum,s predoctoral fellow ...
(Date:9/30/2014)... 30, 2014 Winners of The Economist,s prestigious ... scheduled to take place at the JW Marriott Hong Kong on ... winners will share their experiences and the lessons those hold for ... proven innovation over the past decade, will be presented at a ... the summit. It will be the first time the ceremony has ...
Breaking Biology News(10 mins):Risky metabolism 2Smithsonian scientists discover coral's best defender against an army of sea stars 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 3Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 4Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 5Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 6Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 7
... led by the Karolinska Institutet, Sweden and the University of ... and the composition of human gastrointestinal bacteria. In a study ... the team outline new evidence suggesting that the human genome ... billions of microbes in the human gastrointestinal tract collectively known ...
... senior author Morris J. Birnbaum, MD, PhD, the Willard ... for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, ... works in a different way than previously understood. Their ... hormone glucagon,s ability to generate an important signaling molecule, ...
... cells in all higher organisms cells need to bind to ... tissues. Mysteries have remained, however, about exactly how cells manage ... Scripps Research Institute (TSRI) have now solved part of this ... α-catenin, which is essential to this process. The ...
Cached Biology News:International study suggests human genes influence gut microbial composition 2Most-used diabetes drug works in different way than previously thought 2New study defines the long-sought structure of a protein necessary for cell-cell interaction 2
(Date:9/30/2014)... 30, 2014 Proove Biosciences , ... excited to announce a new genetic test built upon ... Pain Perception Test will provide physicians with an ... pain tolerance levels are stratified between individuals. With this ... a person has a genetic predisposition that will affect ...
(Date:9/30/2014)... , September 30, 2014 ... intuitive browsing of chemistry in documents ... software solutions and consulting services for life science ... information and generate Markush structures from documents. ... organizations intellectual property, however generating and understanding Markush ...
(Date:9/30/2014)... BioHealth Innovation, Inc. (BHI), a ... and increasing access to early-stage funding in ... Tania Fernandez , Ph.D., has joined the BHI ... a member of the management team for a new ... million in seed and early-stage equity investments to therapeutics, ...
(Date:9/30/2014)... 2014 The custom stainless steel fabrication ... Show 2014. The Boston Area Chapter of ISPE (International ... day-long event for Wed., Oct. 1 at Gillette Stadium ... the largest in ISPE Boston’s long history, with more ... attendees expected. , HOLLOWAY AMERICA President David Simpson ...
Breaking Biology Technology:Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3ChemAxon Introduces ChemCurator for Chemical Information Extraction and Markush Structure Creation 2Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 2HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 3
... SUNNYVALE, Calif., Sept. 26 Cepheid (Nasdaq:,CPHD) will ... Growth Stock,Conference on October 3, 2007 at 10:40 ... York. John R. Sluis, Cepheid,s Chief Financial Officer ... Officer, will provide,a corporate overview. The webcast, ...
... strategic platform for reducing risk of cancer ... drug development, ... ; MTAX) held its 2007 annual shareholders meeting,(Annual Meeting) on Tuesday, September ... a majority of CTI,s shares are,held by Italian shareholders. At the 2007 ...
... BioInformatics, SINGAPORE, Sept. 26 /Xinhua-PRNewswire/ -- ... Ltd, a leader in reconfigurable computing,applications headquartered ... The,BioIT Alliance is a cross-industry group working ... pace of drug discovery and realize the,potential ...
Cached Biology Technology:Cepheid to Present at William Blair Small-Cap Growth Stock Conference 2Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 2Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 3Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 4Progeniq Joins Microsoft in Bio IT Alliance 2Progeniq Joins Microsoft in Bio IT Alliance 3
The new Silencer siRNA Starter Kit is perfect for researchers new to RNAi. It provides all of the reagents, protocols, and instructions necessary to get underway with siRNA transfection and ensure su...
... the yolk protein Vtg in plasma from juvenile ... biomarker for endocrine disrupting chemicals (EDCs) with estrogenic ... an accepted screening test for the estrogenic effects ... EIA kit is a double-antibody immunometric (sandwich) EIA ...
... sequence is from rat SCAMP 5. The sequence of this ... Q - P - Q - T - Q - Y ... Y - T - Y - S - N(233). ... the polyclonal antibody that reacts with this product and the rat ...
... Have a novel target for which no antibody ... made custom antibodies for a variety of pharmaceutical, ... happy to put our technology and expertise in ... Access to our patented RabMAb development technology , ...
Biology Products: