HOME >> BIOLOGY >> NEWS
Darwin's Time Machine: Scientists begin predicting evolution's next step

Untangling the branches of evolution's past is a daunting enough task for researchers, but some scientists are now turning their eyes toward the future in a bid to predict evolution's course. Barry G. Hall, professor of biology at the University of Rochester, has shown how a model of evolution developed in the lab accurately reproduces natural evolution. The research, published in the March issue of Genetics, demonstrates how the model is so accurate that it can be used to predict how a strain of bacteria will become resistant to antibiotics-giving researchers a possible tool to create drugs to which bacteria cannot adapt.

"Antibiotic-resistant bacteria were a perfect target on which to test the model because we have examples of antibiotic resistance genes that first appeared 40 years ago," says Hall. "We know how those genes evolved in nature during the last 40 years, so if we apply the model to those genes and the model predicts those same evolutionary outcomes as happened in nature, we can be confident that the model works."

"Hall's recent work lays an all-important conceptual foundation for understanding the functional evolution of enzymes," says Anthony M. Dean, associate professor of biotechnology at the University of Minnesota. "Not only has he attempted to predict the outcome of adaptive evolution, but he has removed that last vestige of vitalism, which asserts that natural selection can only be studied in the natural environment."

Evolution is usually a very slow process. A mutation in the genetic code of an organism changes the organism's functions, usually for the worse, but sometimes for the better. Those organisms with mutations that allow them to thrive better than their cousins, tend to survive while the cousins die out. A classic example is to remove the gene that allows E. coli bacteria to digest lactose, but then give the colony of bacteria only lactose to eat. Of the millions in a colony, some bacteria re-evolve the ability to
'"/>

Contact: Jonathan Sherwood
jonathan.sherwood@rochester.edu
585-273-4726
University of Rochester
19-Mar-2002


Page: 1 2 3 4

Related biology news :

1. Briggs takes to the molecular level Darwins findings on plants sensing the direction of light
2. Darwins letters being sent to Galapagos Islands as part of Darwin Correspondence Project
3. Scientists to prototype cyberinfrastructure for research and education access to ocean observatories
4. Scientists sequence genome of kind of organism central to biospheres carbon cycle
5. Scientists find nanowires capable of detecting individual viruses
6. Scientists discover potential new way to control drug-resistant bacteria
7. Scientists explore genome of methane-breathing microbe
8. Scientists decipher genetic code of biothreat pathogen
9. Stuck on you: Scientists lay bare secrets of bacterial attachment proteins
10. Scientists discover proteins involved in spread of HIV-1 infection
11. Scientists fear new Ebola outbreak may explain sudden gorilla disappearance

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/8/2020)... Ariz. (PRWEB) , ... January 08, 2020 , ... ... therapies, is now offering complimentary overnight shipping to its nationwide practice network ... biologics, but also due to volume in its Network the biologics themselves are ...
(Date:12/30/2019)... ... December 30, 2019 , ... Cure Now ? Instead of ... disease is the 6th leading cause of death in the United States. , ... or other dementia. ,     These caregivers provided an estimated 18.5 billion hours ...
(Date:12/18/2019)... ... December 17, 2019 , ... EconoFact, a non-profit media initiative ... Fletcher School, Tufts University, is pleased to announce a collaboration with Macmillan Learning ... using Macmillan Learning’s acclaimed series of economics textbooks. , Under the agreement, Macmillan ...
Breaking Biology News(10 mins):
(Date:1/7/2020)... United Kingdom (PRWEB) , ... January 07, 2020 ... ... of recombinant antibody products and services, today announced the launch of its VivopureX™ ... of popular antibody clones, many originally obtained from rats or hamsters, which Absolute ...
(Date:1/7/2020)... ... 2020 , ... ABCT , the Accelerator for Biosciences ... participate in the annual program. Twelve ventures will participate in the 6.5-month-long program ... All startups will receive an entrepreneur coach, access to active business professionals and ...
(Date:12/27/2019)... EGG HARBOR TOWNSHIP, N.J. (PRWEB) , ... December ... ... premier manufacturer of custom built, helium-based leak testing instruments for the Pharmaceutical, Biotechnology, ... its first calendar year under new management . Following acquisition by CLJ ...
(Date:12/18/2019)... ... December 17, 2019 , ... ... is pleased to announce that it has hired Dr. Alia Orbin, Ph.D., J.D., ... is experienced in the preparation, filing and prosecution of patent applications related to ...
Breaking Biology Technology:
Cached News: