Navigation Links
Athletic frogs have faster-changing genomes
Date:4/12/2012

ich each species' genome changed over time, he also reconstructed the poison frog family tree, using DNA sequences from fifteen frog genes.

When he estimated the number of mutations, or changes in the DNA, for each species over time, a clear pattern emerged athletic frogs tended to have faster-changing genomes.

Santos tested for other factors as well, such as body and clutch sizes, but athletic prowess was the only factor that was consistently correlated with the pace of evolution.

Why fit frogs have faster-changing genomes remains a mystery. One possibility has to do with harmful molecules called free radicals, which increase in the body as a byproduct of exercise.

During exercise, the circulatory system provides blood and oxygen to the tissues that are needed most the muscles at the expense of less active tissues, Santos explained.

When physical activity has stopped, the rush of blood and oxygen when circulation is restored to those tissues produces a burst of free radicals that can cause wear and tear on DNA, eventually causing genetic changes that if they affect the DNA of cells that make eggs or sperm can be passed to future generations.

Before you ditch your exercise routine, Santos offers some words of caution. The results don't debunk the benefits of regular physical exercise, which is known to reduce the risk of cancer, heart disease, and diabetes.

"What applies to cold-blooded animals such as poison frogs doesn't necessarily apply to warm-blooded animals such as humans," Santos said.

The findings appeared in the April 10th issue of Molecular Biology and Evolution.


'/>"/>

Contact: Robin Ann Smith
rsmith@nescent.org
919-668-4544
National Evolutionary Synthesis Center (NESCent)
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Sustainability, college athletics dont always connect
2. L-arginine: Supplement tested on fit, athletic men shows no advantage
3. Optimal topdressing applications for athletic fields determined
4. Athletic girls more likely to have impaired bone structure if menstrual cycle stops
5. Heat acclimation benefits athletic performance
6. Compression clothing and athletic performance -- functional or fad?
7. Impact sensor provides athletic support
8. Study: Popular supplement quercetin does not enhance athletic performance
9. Seriously, were poisonous: Coloration is an honest signal of toxicity in poison frogs
10. Frogs use calls to find mates with matching chromosomes, University of Missouri researchers find
11. Picture book portrays a hoppy future for endangered frogs
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Athletic frogs have faster-changing genomes
(Date:8/28/2014)... available in German . ... built with the help of sophisticated assembly lines. Mobile assembly ... important part of these assembly lines. In the case of ... work stages arranged in a precise spatial and chronological sequence, ... line. , The creation of such an assembly line at ...
(Date:8/28/2014)... conserve biodiversity and more action is needed to ensure ... say. , Published in PLOS ONE , researchers ... Exeter, used meta-analysis - combining results from different studies ... research into these areas, to determine whether they actually ... Biological Sciences, said protecting an area from human exploitation ...
(Date:8/27/2014)... Aug. 27, 2014  WaferGen Bio-systems, Inc. (NASDAQ: WGBS) ... underwritten public offering of units of common stock and ... gross proceeds of $20 million, prior to deducting underwriting ... Company.  The shares and warrants are immediately separable and ... sold in the offering consists of 2,000 shares of ...
Breaking Biology News(10 mins):Nanoscale assembly line 2Nanoscale assembly line 3Protected areas proven to protect biodiversity 2WaferGen Bio-Systems Announces Successful Completion of Public Offering Raising $20 Million 2WaferGen Bio-Systems Announces Successful Completion of Public Offering Raising $20 Million 3
... Illinois at Chicago College of Pharmacy are attempting ... antipsychotic medication works in adults and children and ... a popular "atypical" antipsychotic medication, is used to ... disorder. , Jeffrey Bishop, assistant professor of ...
... With wheat stem sawfly natural enemies in demand, ... increasing their availability. , This fall, the ... mass-rearing parasitic wasps that attack wheat stem sawfly ... plants. The team includes entomologists David Weaver, master's ...
... tool developed at Cambridge University represents a breakthrough in ... Huntington's disease. , Researchers have developed an effective ... the disease, using an automated touch screen. It is ... more effectively the cognitive difficulties in other neurodegenerative disorders ...
Cached Biology News:Studies look at how genes affect antipsychotic drug response 2Rearing an army to save wheat 2Rearing an army to save wheat 3New technology to speed up research into Huntington's disease 2New technology to speed up research into Huntington's disease 3
(Date:8/28/2014)... MENLO PARK, Calif. , Aug. 28, 2014 ... company focused on developing novel mid- to late-stage ... raised $7.0 million in its first round of ... AshHill Biomedical Investments and Hercules Bioventures with participation ... biotech entrepreneur and pharmaceutical executive, Dr. Larry ...
(Date:8/28/2014)... Boston, MA (PRWEB) August 28, 2014 ... of wholesale construction materials, selected SoundConnect ... of their cloud based audio and web conferencing ... configured to support PrimeSource’s employees’ needs. SoundConnect ... technologies. , PrimeSource Building Products will be ...
(Date:8/27/2014)... Rhythm, a biopharmaceutical company developing peptide therapeutics that address ... disorders, announced today that it has filed a registration ... Exchange Commission (SEC) relating to the proposed initial public ... of shares to be offered and the price range ... Citigroup and Cowen and Company will act as ...
(Date:8/27/2014)... The Global and China Trifluoroacetic Acid Industry is ... of the Trifluoroacetic Acid industry in Global and China. ... industry, including definitions, applications and industry chain structure. Global ... with a focus on history, developments, trends and competitive ... and Chinese situation is also offered. , The report ...
Breaking Biology Technology:Armetheon Completes $7.0 Million Series A Financing 2Armetheon Completes $7.0 Million Series A Financing 3PrimeSource Chooses SoundConnect as Collaboration Provider 2Rhythm Files Registration Statement for Proposed Initial Public Offering 2Trifluoroacetic Acid Industry (Asia, Europe, North America, ROW) Analysis Report Now Available at ReportsnReports.com 2
... In a paper published this week in Science , ... and Professor Konstantin Novoselov has literally opened a third dimension ... prove the missing link for graphene to become the next ... is a remarkable material with endless unique properties, from ...
... 2012 InterMune, Inc. (NASDAQ: ITMN ) today ... year 2011 financial results at the close of the U.S. ... and webcast will be hosted by InterMune at 4:30 p.m. ... others may participate in the conference call by dialing 800-891-8257 ...
... Hudson, President and Scientific Director of The Ontario Institute ... to develop a framework for the implementation of personalized ... aims to integrate genomics research into everyday clinical practice, ... care for patients. Published in the journal ...
Cached Biology Technology:Graphene electronics moves into a third dimension 2InterMune to Release Fourth Quarter and Full Year Financial Results on February 9 2New Study Building Framework to Bring Personalized Medicine to the Clinic 2New Study Building Framework to Bring Personalized Medicine to the Clinic 3
Mouse monoclonal [SPM325] to Xanthine Oxidase, prediluted ( Abpromise for all tested applications). Antigen: C terminal 358 amino acid fragment of human xanthine oxidase. Entrez Gene ID: 749...
Rab1A...
Drugs and NO-drug Rat Anti-conjugated Acetyl Salicylic Acid Polyclonal Antibody...
Applications: Beadlyte® assay Stability: 2 years at 4°C (lyophilized) or 6 months at -20°C (rehydrated) ...
Biology Products: