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

cterial evolution experiment that caused the change in their ability to evolve further. They discovered the genetic change that was important for determining which bacteria would prevail and which were destined to become extinct.

"Our collaborators isolated individual bacteria from a population that had evolved for 500 generations and sequenced their entire DNA genome to determine all the changes that had occurred," Cooper said. "By isolating these changes and adding them in defined combinations back into the original ancestral strain, we were able to determine their individual effects."

Reminiscent of Aesop's lesson that 'slow and steady wins the race,' Cooper adds that even bacteria can benefit from a long-term view, with their experiment showing that bacteria that adapted, slowly but consistently, outcompeted those that initially grew quickly but then ran out of ways to improve.

With much of his work based on experimental evolution, which is the lab-based study of evolving populations, Cooper's motivation for this experiment comes from wanting to understand the factors involved in evolution of organisms to better fit their environments. Using bacterial and computational experimental systems he aims to identify and integrate these mechanisms and examine how they depend on genetic and environmental factors.

"Bacteria provide an ideal model system to address these questions, because they evolve so quickly, undergoing thousands of generations in only a few years," Cooper said. "Additionally, we can now sequence their entire genomes and determine the genetic changes that lead to improvements in their ability to grow."

Funded by the National Science Foundation and the Defense Advanced Research Projects Agency, this work was a multidisciplinary effort done in collaboration with researchers in zoology, microbiology and molecular genetics at MSU. In addition to UH's Cooper and Shrestha, the MSU team consisted of Richard Le
'/>"/>

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:9/16/2014)... BEACH GARDENS, Fla. , Sept. 16, 2014 ... of biometric identity management solutions, announced today the ... solution designed to authenticate the identity of an ... The Android-based Verifier Sentry rapidly reads credential ... credential holder,s ID by matching the biometric to ...
(Date:9/15/2014)... Human skin and gut microbes influence processes from digestion ... are the most biodiverse terrestrial ecosystems on the planet, ... trees in the tropics. Smithsonian scientists and colleagues working ... samples from a single tree were home to more ... from 57 tree species contained more than 7,000 different ...
(Date:9/15/2014)... mechanical solution to avoid chromosome sorting errors, researchers ... Express. , This natural safeguard prevents ... infertility, miscarriage, or congenital conditions. , "Mistakes ... what exactly goes wrong is often not understood," ... for Cell Biology at the University of Edinburgh ...
Breaking Biology News(10 mins):Cross Match Launches New Identity Management Handheld Solution 2Smithsonian scientists discover tropical tree microbiome in Panama 2Cells simply avoid chromosome confusion 2Cells simply avoid chromosome confusion 3
... of scientists has found one of the rarest and least ... was believed to be extinct or on the verge of ... of Primatology , confirms the continued existence of this endangered ... it was previously not known to exist. Miller,s Grizzled ...
... the world. The challenges of conserving the world,s species ... of global climate change. Dealing with the biodiversity crisis ... a solid scientific knowledge if we are to ensure ... main conclusion from scientists from University of Copenhagen, after ...
... Forest National Wildlife Refuge are in unprecedented trouble, according to ... . The paper, titled "Changes in timing, duration, and ... University of Hawai,i at Mānoa Zoology Professor Leonard Freed and ... the paper, Freed and Cann report that birds are now ...
Cached Biology News:'Extinct' monkey rediscovered in Borneo by new expedition 2The biodiversity crisis: Worse than climate change 2The biodiversity crisis: Worse than climate change 3Native forest birds in unprecedented trouble, according to University of Hawaii at Manoa researchers 2
(Date:9/16/2014)... 2014 BCC Research reveals in ... CELLS , the global market for stem cells is ... with a five-year compound annual growth rate (CAGR) of ... Americas with growth projections of $2.2 billion in 2014 ... http://photos.prnewswire.com/prnh/20140805/700528) , Unlike other potential applications of ...
(Date:9/15/2014)... , Sept. 15, 2014   Global ... innovator of scientific products and services for satellite ... Acquisition Solution for Integrated Services (OASIS) from the ... GST was selected to provide the government best-value ... Small Business (SB) category in Pool 4. The ...
(Date:9/15/2014)... from North Carolina State University have developed a technique ... applying very low voltages, opening the door to a ... technologies. The technique hinges on the fact that the ... deposited or removed acts as a surfactant, lowering ... fluid. , The researchers used a liquid metal alloy ...
(Date:9/15/2014)... (PRWEB) September 15, 2014 Bioptigen ... deep imaging OCT system for the optical device metrology ... EnvisuTM S4410 SDOCT for Contact Lens Metrology ... standard and high complexity contact lens, IOL structures, and ... of a complete contact lens immersed in a hydration ...
Breaking Biology Technology:Global Market for Stem Cells to Reach $10.6 Billion in 2018; The Americas Growing at 13.9% CAGR 2Global Market for Stem Cells to Reach $10.6 Billion in 2018; The Americas Growing at 13.9% CAGR 3Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 2Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 3Researchers control surface tension to manipulate liquid metals 2Bioptigen Introduces Deep Imaging OCT System for Contact Lens Metrology 2
... s new server-based file compression software has come out of ... create encrypted self-extracting files in the companys Zip format and ... now open them without needing to install PKWare software themselves. ... which is contained in an executable file. Thats the biggest ...
... a booming export business. Universities are expanding offshore and online ... the South Pacific and the Middle Eastwho are eager for ... is so strong that sale of academic sheepskins is rivaling ... in the land down under should be noted in Wisconsin, ...
... Teresa Esser. Appleton, Wis. The head ... recently to encourage angels to band together. , ,On October ... Foundation, gave a lecture at the Radisson Hotel in ... capitalists invested $18.3 billion in companies of various sizes, but ...
Cached Biology Technology:Encrypted data without the fuss 2Wisconsin can teach the world, and profit by it 2Wisconsin can teach the world, and profit by it 3Susan Preston, entrepreneur, on how to set up angel networks 2Susan Preston, entrepreneur, on how to set up angel networks 3Susan Preston, entrepreneur, on how to set up angel networks 4Susan Preston, entrepreneur, on how to set up angel networks 5
... monoclonal antibody development to targets including proteins ... DNA, and cancer-specific surface antigens. A&Gs ... is completed in approximately 40 days (duration ... of antigens). Phase I: Immunization, test ...
PCR System for increased fidelity, yield and length of PCR products. Amplifies targets up to 10 kb from human genomic DNA....
...
US Pharmacopoeia Purified-Water/Water-for-Injection Quality Water...
Biology Products: