Navigation Links
The Evolution of Costly Traits

Darwin has given us a background about how beneficial traits shape up in natural populations,// but one is led to wonder about the manner of development of costly traits. Two theories have tried to address this challenge – the theory of hitch hiking and theory of kin selection.

The theory of hitchhiking has indicated that genes which present a cost to their bearer can become frequent in natural populations when they "hitch a ride" with healthier genes that are being preferred by natural selection. On the contrary, the theory of kin selection indicates that costly traits are preferred, if they result in gains for relatives of the bearer, who also carry the gene.

"Animal traits are not always independent. For example, people with blond hair are more likely to have blue eyes," explains Andy Gardner (Oxford University). "This is a nuisance for natural selection, which could not, for instance, favor blond hair without also indirectly favoring blue eyes, and this is the idea of genetic hitchhiking."

Kin selection is similar, but here the genetic associations are between different individuals: "If I have a gene that makes me more altruistic, then I can also expect my relatives to carry it. So while the immediate effect of the gene is costly for me, I would benefit by receiving altruism from my relatives, and so the gene is ultimately favored," Gardner explains.

New research carried out at the University of Edinburgh and Queen's University, Canada shows that both processes are governed by the same equations. This reveals that kin selection can be seen as a special form of genetic hitchhiking, explain Gardner and his coauthors Stuart West and Nick Barton (University of Edinburgh) in the February issue of The American Naturalist.

The researchers built on a general framework for modeling hitchhiking first proposed by Barton and colleagues, showing how it can be used to describe social evolution and recovering t
'"/>




Page: 1 2

Related medicine news :

1. Sex Played A Vital Role For Evolution Of Infectious Diseases
2. Evolution influenced by Temperature change
3. Scientists Explain Complex Darwinian Evolution
4. The Deadly Evolution of SIV to HIV
5. A Human Brain Gene Could Hold Clues On The Evolution Of Brain Capacity
6. Understanding the Evolution of Viruses a little more Clearly
7. Evolution of Plant Life Cycle
8. Child-Care In Canada A Costly Affair
9. Costly mistakes help better understand OCD: obsessive compulsive disorder
10. Are One-Third of Costly Implanted Heart Devices Unnecessary?
11. Study Explains How Costly Traits Evolve
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: The Evolution Costly Traits

(Date:9/17/2014)... 17, 2014 (HealthDay News) -- Present-day Europeans are ... ancient humans, according to a new study. ... indigenous hunter-gatherers and early European farmers. But, a ... they are also the descendants of Ancient North ... from this third ancestral group, researchers from Harvard ...
(Date:9/17/2014)... HealthDay Reporter WEDNESDAY, Sept. 17, 2014 ... explain why antibiotic-resistant bacteria can thrive in a hospital setting. ... be the culprit. They can easily enter bacteria and move ... that makes bacteria drug-resistant, a new study finds. "The ... a class of antibiotic called carbapenems," said the study,s co-author, ...
(Date:9/17/2014)... Mathematics might be able to reduce the need for ... the autoimmune disease lupus. , In a new study, ... progression from nephritis kidney inflammation to interstitial ... reverse. A kidney biopsy is the only existing way ... its extent. , The model could also be used ...
(Date:9/17/2014)... Today, Blue Shield of California Foundation ... This body of grants aims to support California’s safety ... delivery, as well as to develop new coverage and ... strengthen the capacity of both domestic violence and healthcare ... entry points for domestic violence screening and services. , ...
(Date:9/17/2014)... In a country where 77% of inhabitants suffer ... how can Americans find healthy and fulfilling ways to ... , a 5-day interactive journey to putting stress into ... September 29th – October 3rd, the Hyland’s Stress Challenge ... topics that promote natural solutions for managing stress. , ...
Breaking Medicine News(10 mins):Health News:Europeans Are Descendants of at Least 3 Ancient Human Groups: Study 2Health News:Europeans Are Descendants of at Least 3 Ancient Human Groups: Study 3Health News:Researchers Discover How Bacteria Resist Antibiotics in Hospitals 2Health News:Researchers Discover How Bacteria Resist Antibiotics in Hospitals 3Health News:Math model designed to replace invasive kidney biopsy for lupus patients 2Health News:Blue Shield of California Foundation Awards $5 Million in Third-Quarter Grants 2Health News:Stress Less with the Hyland's 5-Day Stress Challenge 2
... has increased its health budget by over 30 percent ... a new medical college//. ,"In a bid to ... medical education department budget to about Rs.1.52 billion. This ... billion," an official said. ,"The government not ...
... the June Journal of the American Society of Nephrology ... for chronic renal failure//. ,"Our results confirm an ... as an important causative factor in kidney disease," comments ... of the new study. ,Dr. Ejerblad and colleagues ...
... According to a new study by New York University School ... New York City are severely infected// with hepatitis B virus. ... the liver gets inflamed and can ultimately lead to cirrhosis ... 12 issue of Morbidity and Mortality Weekly, published by the ...
... new study, oral and intravenous antiviral drug may be ... ,Shingles, which is caused by varicella-zoster virus, is a ... at the University of Colorado and Health Sciences Center ... three women with moderate to severe pain following shingles. ...
... Middle school students have expressed a high degree of comfort ... schools are safer// , and make the students feel wanted. ... other schools. Psychologists from UCLA and UC ... than 70 sixth-grade classrooms in 11 Los Angeles public middle ...
... which is a severe form of food poisoning, now has ... team of researchers working at the University of Bristol//. ... researchers have narrowed down on a particular antibiotic called fosfomycin, ... effective in the laboratory, this drug has never been considered ...
Cached Medicine News:Health News:Kidney Failure three times pronounced with obesity 2Health News:Asian American Community Prone To Hepatitis B infection 2Health News:Asian American Community Prone To Hepatitis B infection 3Health News:Comfort Level, Maximum in Ethnically Diverse Schools 2Health News:Comfort Level, Maximum in Ethnically Diverse Schools 3
(Date:9/17/2014)... DALLAS , Sept. 17, 2014   OTEMR, ... 2014 Edition Complete EHR certification, which designates that the ... the Stage 1 and Stage 2 Meaningful Use measures ... and Reinvestment Act (ARRA).  ONETOUCH EMR 2.0 was certified ... an Office of the National Coordinator-Authorized Certification Body (ONC-ACB) ...
(Date:9/17/2014)... -- Bayer HealthCare will present data on hemophilia A research ... Meeting, which takes place September 18-20 in ... shared through poster presentations, showcase Bayer,s commitment to advancing ... presented in a scientific forum. "With posters ... patients, Bayer is maintaining its commitment to research in ...
(Date:9/17/2014)... 2014  Lightbeam Health Solutions announced today an ... Direct ACO) to deploy the Lightbeam population health ... care while reducing costs. Photo - ... Accountable Care Organization is the ACO operating entity ... mission is to be the premier integrated health ...
Breaking Medicine Technology:OTEMR, Inc.'s ONETOUCH EMR Achieves ONC HIT 2014 Edition COMPLETE EHR Certification from ICSA Labs 2OTEMR, Inc.'s ONETOUCH EMR Achieves ONC HIT 2014 Edition COMPLETE EHR Certification from ICSA Labs 3Bayer to Present Data on Hemophilia Research at NHF in Washington, D.C. 2Bayer to Present Data on Hemophilia Research at NHF in Washington, D.C. 3Bayer to Present Data on Hemophilia Research at NHF in Washington, D.C. 4Physician Direct Accountable Care Organization Selects Lightbeam Health to Enable Better Care at a Lower Cost 2Physician Direct Accountable Care Organization Selects Lightbeam Health to Enable Better Care at a Lower Cost 3
... Virtual CME, LLC , a leading provider in ... of the industry,s first online, image based CME accredited ... of streaming video, 3D visualization cloud computing, and webinars, ... "Realizing that training in medical imaging is a ...
... Va., Aug. 26, 2011 Today, Medicomp Systems announced ... its new version of the powerful MEDCIN Engine®. ... that adapts to the unique clinical presentation of each ... for compliance and reimbursement. The MEDCIN Engine currently includes ...
Cached Medicine Technology:Medicomp Releases ICD-10-CM with New Version of the Powerful MEDCIN Engine® 2
... semi-dry electrophoretic transfer cell and PowerPac ... Efficient Transfers. Minimal Buffer Requirements. ... and Reliable Transfers. Single-Step Locking ... Capacity to Transfer Multiple Gels. ...
... Transfers depurinated DNA and RNA from agarose ... as 15 minutes ,Increases speed and efficiency ... be applied to gel ,Part of an ... and UV crosslinking in 2.5 hours, versus ...
PosiBlot 30-30 Sponges...
PosiBlot 30-30 Pads...
Medicine Products: