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:7/27/2015)...   Zynx Health ™, the market leader ... today announced that its ZynxCarebook ™ mobile ... smartphones and tablets. With this expansion, care team ... ZynxCarebook to securely exchange messages and share assessments ... to other care settings, and improve clinical outcomes ...
(Date:7/21/2015)... -- Today, ZTE announced its Android smartphone Axon, featuring ... revenues in 2015 that relate to sales of FPC1025 for this ... 2,200 MSEK for 2015. Jörgen Lantto, CEO of FPC, ... China and we are proud that ... Axon , its first ...
(Date:7/20/2015)... , July 20, 2015  Acuity Market ... Report: The Convergence of Commerce and Privacy" forecasts ... mobile biometric apps will be downloaded to smart ... The mobile biometrics market is projected to generate ... revenue during the seven-year forecast period.    ...
Breaking Biology News(10 mins):Zynx Health Adds Android Device Support to ZynxCarebook Solution 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 3FPC's Touch Fingerprint Sensor FPC1025 in ZTE's Smartphone Axon 2Biometrics on Smart Mobile Devices to Redefine Digital Identity with 12.9 Billion Biometric App Downloads between 2014 and 2020 2
... science takes a giant leap forward with a new ... new $1.5 million per year Pedo-Biometrics Research and Identity ... Ottawa, Canada, company currently relocating operations to the U.S., ... of identification uses, from security to detecting the onset ...
... Santa Barbara, Calif. As spatial planning is used increasingly ... to determine the best ways to use and refine the ... (MPAs), one of the most common methods, which limit or ... paper published in the early edition of the Proceedings ...
... Technology (Caltech) pioneered the study of the link ... disorders such as autism a decade ago. Since ... with autism, as well as epidemiological studies, have ... system and autism spectrum disorder. What has ...
Cached Biology News:Carnegie Mellon University's Biometrics Center Selected To House New Pedo-Biometrics Research and Identity Automation Lab 2Carnegie Mellon University's Biometrics Center Selected To House New Pedo-Biometrics Research and Identity Automation Lab 3Refining the tool kit for sustainable fisheries 2Refining the tool kit for sustainable fisheries 3Caltech researchers find evidence of link between immune irregularities and autism 2Caltech researchers find evidence of link between immune irregularities and autism 3
(Date:7/30/2015)... 30, 2015 AACC welcomed thousands of ... AACC Annual Meeting & Clinical Lab Expo in ... The meeting showcased revolutionary advancements in clinical testing ... healthcare providers to diagnose patients quickly and accurately ... As of Wednesday, July 29, ...
(Date:7/30/2015)... ... ... The 2015 Market Research Report on the Global Propanol Industry is ... with a focus on the Chinese situation. Major companies included in the propanol market ... Royal Dutch Shell, LG Chem and Zhejiang Xinhua Chemical. , The report provides a ...
(Date:7/30/2015)... Kan. , July 30, 2015   ... a pet therapeutics company focused on the licensing, ... companion animals, today announced that its strategic partner ... a dose confirmation study of AT-016, an adipose-derived ... for the treatment of osteoarthritis pain in dogs. ...
(Date:7/30/2015)... COPENHAGEN, Denmark , July 30, 2015 /PRNewswire/ ... a biotechnology company that applies its innovative TransCon ... announced positive top-line results from a six-month Phase ... of once-weekly TransCon Growth Hormone in 53 treatment-naïve, ... "We are extremely pleased with the ...
Breaking Biology Technology:Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4Global Propanol Market Technical Data and Manufacturing Analysis 2020 2Global Propanol Market Technical Data and Manufacturing Analysis 2020 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 2Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 5Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 6Ascendis Pharma A/S Announces Positive Top-line Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 7
... AMES, Iowa - Researchers at the U.S. Department ... a potentially perfect way to sort and distribute ... over optical fibers to people ,throughout the world. ... filter, promises greatly enhanced transmission of multiple ,wavelength ...
... Feb. 18 - Biotech pioneer,William J. Rutter, PhD, ... RAPS,Horizons Conference & Exhibition in San Francisco next ... Rutter, Chairman and CEO of Synergenics LLC ... fresh and relevant perspectives on,the regulatory implications of ...
... 18 JADO Technologies GmbH,the leading developer of ... Phase IIa clinical trial of its lead RAFT ... a topical,formulation of miltefosine, exerts its anti- inflammatory ... lipid membrane of cells that,play a role in ...
Cached Biology Technology:New filter clears up fiber optic communications 2New filter clears up fiber optic communications 3Biotech Pioneer William J. Rutter to Deliver Keynote at 2008 RAPS Horizons Conference 2JADO Reports Clinical Proof of Concept With Raft Modulator in Atopic Dermatitis 2JADO Reports Clinical Proof of Concept With Raft Modulator in Atopic Dermatitis 3
...
...
... Transfer Vector is a derivative of the pAcHLT-A ... blue fluorescent protein (BFP), followed by a 6xHis ... are expressed as BFP-6xHis fusion proteins when cloned ... I, Stu I, Sac I, Not I, Pst ...
Mouse monoclonal antibody to PDK2 - pyruvate dehydrogenase kinase, isoenzyme 2...
Biology Products: