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:8/1/2014)... The Journal of Nutrition Education and Behavior (JNEB) ... Material (GEM) awards, which were presented at the Society ... Education Impact: Local to Global," in Milwaukee, Wisconsin, June ... recognize the authors of the best article and best ... members of the JNEB Journal Committee and Board of ...
(Date:8/1/2014)... 2014Biologists at The Scripps Research Institute (TSRI) have identified ... process in brown fat cells. , The study, ... of the Proceedings of the National Academy of ... "brown fat thermogenesis," which is of great interest to ... may also protect against diabetes. , "This finding offers ...
(Date:8/1/2014)... Provider Binary Biometrics is pleased to welcome Kevin Morris ... its mobile service capabilities and add more daily appointments, which will allow the ... new cities such as, but not limited to, Daytona Beach ... Deltona , Edgewater , Holly Hill ... , Oak Hill , Orange City , ...
Breaking Biology News(10 mins):Scripps Research Institute scientists find new calorie-burning switch in brown fat 2Scripps Research Institute scientists find new calorie-burning switch in brown fat 3Binary Biometrics, Founded by James Timothy White, Expands Services to 13+ Locations With the Addition of Owner/Operator Kevin Morris 2Binary Biometrics, Founded by James Timothy White, Expands Services to 13+ Locations With the Addition of Owner/Operator Kevin Morris 3
... biological structures, like the brain or the eye, are ... have proposed various ways that so-called ,irreducibly complex, structures ... a new study proposes an alternative route. ... intricate, say authors Dan McShea and Wim Hordijk, some ...
... dioxide removal could be used under certain requirements to ... would not replace the bulk of actual emissions reductions. ... separate emissions control from the time and location of ... climate protection," says lead-author Elmar Kriegler. "You don,t have ...
... are adding statistical nuance to our understanding of how ... statistical model of Arctic temperature and how it relates ... cores, and lake sediments, Martin Tingley, a research associate ... Peter Huybers, Professor of Earth and Planetary Sciences, have ...
Cached Biology News:Study proposes alternative way to explain life's complexity 2Study proposes alternative way to explain life's complexity 3CO2 removal can lower costs of climate protection 2CO2 removal can lower costs of climate protection 3New research helps place modern temperatures into a more complete statistical framework 2
(Date:8/1/2014)... Glencoe Software, Inc. is pleased ... ( http://glencoesoftware.com/data-inpress.html ), a suite of data ... into on-line publications.  The suite comprises Glencoe ... Photo - http://photos.prnewswire.com/prnh/20140731/132410   ... The DataViewer is a browser-based ...
(Date:7/31/2014)... Today BioSpace , the leading life sciences employment and news website, ... sciences community in Illinois , Indiana ... Michigan , Minnesota , Missouri ... and Wisconsin . BioMidwest is a leader ... on BioSpace originating in this region in 2013. The life sciences sector ...
(Date:7/31/2014)... The ability to see through organs and even the ... well as fine-grained cellular structures has been a long-time ... Press July 31st in the journal Cell ... simple methods for making opaque organs, bodies, and human ... connections intact. The protocols could pave the way for ...
(Date:7/31/2014)... York , July 31, 2014 ... Transparency Market Research "Quantum Dots Market - Global Industry ... 2023," the market was valued at USD 88.5 million ... million by 2023, growing at a CAGR of 53.8% ... Quantum Dots Market Report at  http://www.transparencymarketresearch.com/quantum-dots.html ...
Breaking Biology Technology:Glencoe Software Launches Data InPress 2Glencoe Software Launches Data InPress 3Midwest Biotech Leaders Featured On BioSpace Map 2See-through organs and bodies will accelerate biomedical discoveries 2Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 2Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 3Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 4
... for optimal image clarity , Eagle Eye ... Jane Moores ,Stratagene , A new optical filter has been ... Still Video System that increases contrast and sensitivity when imaging,silver-stained ... II Still Video System,is currently sold with an optical filter ...
... quantities of pure high-kb DNA , Jeff Braman Scott ... kits are,designed to isolate up to 20 and 350 g, respectively, ... kits can also easily purify very,large plasmids, including cosmid DNA. , ... SuperCos I clone containing a 40-kb , ...
... pcmv-script PCR cloning kit , , Tanya Hosfield ... Cloning Systems, Inc. , , Stratagene has expanded the ... a new vector for high-efficiency cloning of PCR,fragments and ... kit uses a PCR cloning method ...
Cached Biology Technology:Eagle Eye Optical Filter Optimized for Imaging Silver-Stained,Gels 2Eagle Eye Optical Filter Optimized for Imaging Silver-Stained,Gels 3Easy Cosmid DNA Purification with StrataPrep Kits 2Mammalian Expression Vector for Efficient Cloning of PCR Fragments 2Mammalian Expression Vector for Efficient Cloning of PCR Fragments 3Mammalian Expression Vector for Efficient Cloning of PCR Fragments 4
Fingerprinting II Informatix optional matrix types module, is an optional module that adds external similarity and distance matrix functions to the Fingerprinting II Informatix software package....
... Zyagen tissue microarrays are derived from ... to rigorous quality control procedures to ensure ... are manually assembled in one block, sectioned ... mounted on coated slides. Sections are large ...
... Zyagen tissue microarrays are derived from Paraffin ... rigorous quality control procedures to ensure the ... manually assembled in one block, sectioned at ... on coated slides. Sections are large (3-5 ...
... 2-D standards consist of seven reduced, denatured ... carbonic anhydrase, rabbit muscle GAPDH, bovine muscle ... with pIs ranging from 4.5 to 8.5 ... 76,000. These 2-D standards provide calibrated references ...
Biology Products: