Navigation Links
Evolution of 'irreducible complexity' explained

Using new techniques for resurrecting ancient genes, scientists have for the first time reconstructed the Darwinian evolution of an apparently "irreducibly complex" molecular system.

The research was led by Joe Thornton, assistant professor of biology at the University of Oregon's Center for Ecology and Evolutionary Biology, and will be published in the April 7 issue of SCIENCE.

How natural selection can drive the evolution of complex molecular systems ?those in which the function of each part depends on its interactions with the other parts--has been an unsolved issue in evolutionary biology. Advocates of Intelligent Design argue that such systems are "irreducibly complex" and thus incompatible with gradual evolution by natural selection.

"Our work demonstrates a fundamental error in the current challenges to Darwinism," said Thornton. "New techniques allowed us to see how ancient genes and their functions evolved hundreds of millions of years ago. We found that complexity evolved piecemeal through a process of Molecular Exploitation -- old genes, constrained by selection for entirely different functions, have been recruited by evolution to participate in new interactions and new functions."

The scientists used state-of-the-art statistical and molecular methods to unravel the evolution of an elegant example of molecular complexity ?the specific partnership of the hormone aldosterone, which regulates behavior and kidney function, along with the receptor protein that allows the body's cells to respond to the hormone. They resurrected the ancestral receptor gene ?which existed more than 450 million years ago, before the first animals with bones appeared on Earth ?and characterized its molecular functions. The experiments showed that the receptor had the capacity to be activated by aldosterone long before the hormone actually evolved.

Thornton's group then showed that the ancestral receptor also responded to a far more anci
'"/>

Source:University of Oregon


Page: 1 2

Related biology news :

1. To Stop Evolution: New Way Of Fighting Antibiotic Resistance Demonstrated By Scripps Scientists
2. Evolution of taste receptor may have shaped human sensitivity to toxic compounds
3. Evolution of life on Earth may hold key to finding life in outer space
4. Evolutionary conservation of a mechanism of longevity from worms to mammals
5. Evolutionary biology research techniques predict cancer
6. Evolutionary shifts in olfactory sensitivities in fruit flies
7. Evolution follows few of the possible paths to antibiotic resistance
8. Evolution mystery: Spider venom and bacteria share same toxin
9. Evolutionary scrap-heap challenge: Antifreeze fish make sense out of junk DNA
10. Evolutionary forces explain why women live longer than men
11. Evolution reveals an independent route for diversity in animal form
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Evolution irreducible complexity explained

(Date:7/10/2014)... , June 30, 2014  Aware, Inc. (NASDAQ: ... and services, previously announced on June 26, 2014 that ... dividend of $1.75 per share, or approximately $40 million ... July 10, 2014 and a payment date of July ... that it had set an ex-dividend date for this ...
(Date:7/10/2014)... -- It is a great honor for Avery Biomedical ... world-renowned Thoracic and Cardiovascular surgeon, Mark E Ginsburg, M.D., ... with over 34 years of experience, is currently practicing ... Regional Medical Center. Dr. Ginsburg has been implanting the ... considered an expert in the implantation of the Avery ...
(Date:7/10/2014)... Research and Markets ( http://www.researchandmarkets.com/research/h7h8lq/gesture ) ... Gesture Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, ... report to their offering ... Touch-Less Sensing Market to Grow Exponentially. Touch-less sensing ... the companies were unable to leverage this technology ...
Breaking Biology News(10 mins):NASDAQ Sets Ex-Dividend Date for Aware, Inc.'s Special Cash Dividend of $1.75 Per Share 2Avery Biomedical Devices, Inc. announces the appointment of Mark E Ginsburg, M.D. to its Board of Directors 2Global Gesture Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, IR, Capacitive) Market - Forecasts to 2020 2
... body, particularly neuroproteins that maintain proper brain function. ... are known as "tangle diseases" because they are characterized ... brain. A team of Australian and American scientists ... be inserted into neuroproteins, causing them to misfold and ...
... world including science ministers from at least two nations ... September for a meeting that will explore new research and ... be held at the Sheraton Buenos Aires Hotel & Convention ... of science meetings from 1-4 October. Attendance is by invitation ...
... most extensively researched components in the diet. New studies ... of scientific research, which overall suggests that moderate habitual ... cardiovascular health Among recent studies, a new review ... consumption is unlikely to adversely affect cardiovascular health. Furthermore ...
Cached Biology News:New mechanism for protein misfolding may link to ALS 2TWAS to meet in dynamic Buenos Aires next week 2TWAS to meet in dynamic Buenos Aires next week 3
(Date:7/10/2014)... OMICS Group’s 5th International conference and ... 2014 at Double Tree by Hilton Beijing, China is ... Analytical & Bioanalytical research methods only to facilitate improved ... occasion, Dr. Srinubabu Gedela, MD of OMICS Group Inc ... remarkable one in bringing a unique and international mix ...
(Date:7/10/2014)... Russia , July 10, 2014 ... Federation Dmitry Medvedev , presented Russia,s ... company BIOCAD . The Company is developing a ... of MabNext project BIOCAD develops a number of innovative ... and autoimmune diseases. The ceremony took place at the ...
(Date:7/10/2014)... 2014   Ceres, Inc . (Nasdaq: ... today financial results for the three months ended May ... Ceres reported that the company and its ... growing season in Brazil, which concluded in June, despite ... evaluation areas for part of the growing season. Yields ...
(Date:7/10/2014)... the journal PNAS (Proceedings of the National Academy ... and sleep deprivation have a significant effect on our ... the best time of day to test for diseases ... medicines effectively. , Researchers from the University of Surrey ... links between sleep deprivation, body clock disruption and metabolism, ...
Breaking Biology Technology:A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Time of day crucial to accurately test for diseases, new research finds 2
... constant currency revenue growth of 12.9 percent,- Full year ... and improving profitability reflects success of strategic ... for fiscal year 2009, BATESVILLE, Ind., Nov. 10 ... financial results for its fiscal,fourth quarter ended September 30, ...
... Incorporated,(Nasdaq: SPEX ) reported that the Nasdaq Stock ... its common stock from the Nasdaq,Global Market to the ... trading on the Nasdaq Capital Market on November 11, ... three market tier designations for,Nasdaq-listed stocks, and presently includes ...
... Conference Call Today at 4:30 p.m. Eastern Time -, ... MDVN ) today reported on its corporate progress and ... "The third quarter represented another quarter of significant,achievement and ... partnering,agreement with Pfizer for Dimebon. This collaboration not only ...
Cached Biology Technology:Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 2Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 3Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 4Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 5Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 6Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 7Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 8Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 9Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 10Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 11Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 12Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 13Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 14Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 15Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 16Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 17Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 18Hill-Rom Reports Fourth Quarter Revenue Growth of 14.1 Percent to $424 Million and Adjusted Earnings Per Fully Diluted Share From Continuing Operations of $0.58, an Increase of 52.6 Percent From the Prior Year 19Spherix Transfers Stock Listing to Nasdaq Capital Market 2Medivation Reports Third Quarter 2008 Financial Results and Provides Corporate Update 2Medivation Reports Third Quarter 2008 Financial Results and Provides Corporate Update 3Medivation Reports Third Quarter 2008 Financial Results and Provides Corporate Update 4Medivation Reports Third Quarter 2008 Financial Results and Provides Corporate Update 5Medivation Reports Third Quarter 2008 Financial Results and Provides Corporate Update 6Medivation Reports Third Quarter 2008 Financial Results and Provides Corporate Update 7Medivation Reports Third Quarter 2008 Financial Results and Provides Corporate Update 8
... This CLS number is ... to easily match Cornings product ... yet, please order under the ... contact customer service for assistance. ...
... GX-1000 3-D Shaker , ,Product Information ... of the GyroTwister GX-1000 is extremely efficient, ... general mixing as well as staining gels, ... continuously adjustable across a broad range. A ...
...
... Purity is >95%NEN Radiolabeled Ligands\n\nReceptor-related research has ... of new radiolabeled ligands selected to keep ... wide range of products and services for ... 400 state-of-the-art radioligands. If you do not ...
Biology Products: