Navigation Links
Study Explains How Costly Traits Evolve

Darwin explains - how beneficial traits accumulate in natural populations, but how do costly traits evolve?//

In the past, two theories have addressed this problem. The theory of hitchhiking suggests that genes that confer a cost to their bearer can become common in natural populations when they "hitch a ride" with fitter genes that are being favored by natural selection.

Conversely, the theory of kin selection suggests that costly traits can be favored if they lead to benefits 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 the classical results of kin selection theory. This insight raises the possibility of using the tools of hitchhiking theory to explore socia
'"/>




Page: 1 2

Related medicine news :

1. Tomato Sauce reduces Cancer Risk- Study
2. Study on obesity and heart failure
3. National Lung Study in the process
4. Study casts doubt on keyboard ills
5. Study reveals how stress can make you sick
6. Study reveals how stress can make you sick
7. Study supports vegetable diet
8. Study to look at early surgery to treat epilepsy
9. Its Never Too Late to Stop Smoking,Study Finds
10. New Technique to Study Infants Brain.
11. Groundbreaking Study Gives Hope For Patients With Kidney Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Study Explains How Costly Traits Evolve

(Date:8/31/2014)... 01, 2014 In order to celebrate the ... announced its latest designs and launched a big promotion. Now, ... , All the company’s new cars are made with ... for the global customers. As a matter of fact, it ... items. Those who are in need of cheap cars can ...
(Date:8/31/2014)... 2014 LabDoor.com tests the purity and ... According to their website, “We buy products in the ... stores and online sites. No manufacturer-supplied samples are permitted ... Healthy with LabDoor,” a recent study was performed on ... in the United States for Vitamin D3 content, heavy ...
(Date:8/31/2014)... (PRWEB) August 31, 2014 In the ... of states have proposed legislation to require mandatory labeling ... can make informed purchasing decisions that affect their own ... industry leader advocating for stringent measures to eliminate GMOs ... its “Information, Communication, Engagement” (I.C.E.) initiative with the objective ...
(Date:8/31/2014)... (PRWEB) August 31, 2014 Twin to twin ... Aiden and Blake Colp before they were born, but an innovative ... gave them the chance at life. , Now, their parents ... the life-saving fetal surgery option available in St. Louis at the ... nights at Market Pub House (6655 Delmar Blvd, St Louis, ...
(Date:8/31/2014)... Tickets for Brazil vs. Ecuador at MetLife Stadium ... is great news for diehard soccer fans who would have loved ... delight of soccer fans in the Tri-State area these two international ... 9th. , MetLife Stadium is the home field for ... National Football League. The venue opened in 2010 and has already ...
Breaking Medicine News(10 mins):Health News:#1 Rank Awarded to NutriGold’s Vitamin D3 Gold Supplement for the "Best Value" in Vitamin D 2Health News:#1 Rank Awarded to NutriGold’s Vitamin D3 Gold Supplement for the "Best Value" in Vitamin D 3Health News:#1 Rank Awarded to NutriGold’s Vitamin D3 Gold Supplement for the "Best Value" in Vitamin D 4Health News:NutriGold Announces its I.C.E. Initiative to Educate Consumers about GMOs in Dietary Supplements 2Health News:NutriGold Announces its I.C.E. Initiative to Educate Consumers about GMOs in Dietary Supplements 3Health News:After a Rare Diagnosis Threatened Their Boys’ Lives, Parents Build Awareness About TTTS and Fetal Surgery Options at The SSM St. Louis Fetal Care Institute. 2Health News:After a Rare Diagnosis Threatened Their Boys’ Lives, Parents Build Awareness About TTTS and Fetal Surgery Options at The SSM St. Louis Fetal Care Institute. 3Health News:Brazil vs. Ecuador Tickets MetLife Stadium: Ticket Down Slashes Ticket Prices on Ecuador vs. Brazil Tickets in East Rutherford, NJ at the MetLife Stadium 2
... The bastion of the diagnostic company, Medlab, seems to ... an Australian Company, which has been the recipient of ... by the district health boards in Auckland, scheduled to ... Australasia Royal College of Pathologists find themselves in a ...
... have known that a woman’s natural hormone levels can ... study from the University of Southern California// (USC)// has ... women varies by ethnicity and race, and may explain ... study appears in the October issue of Cancer Epidemiology, ...
... index (BMI) received lower scores on cognitive tests than middle-aged ... the// October 10, 2006, issue of Neurology, the scientific journal ... investigated the relationships between BMI and cognitive function in 2,223 ... four cognitive tests. The participants, who were between the ages ...
... to assist HIV infection, may aid the fight against malaria, ... already in use to combat HIV is need of the ... new genre of anti-malarial drugs. ,This is indeed ... and also befalling the HIV afflicted lot with uncanny regularity. ...
... holding a world of cures tucked in its many ... right// ingredients needed to nip breast cancer cells in ... discovered in the compound called indole-3-carbinol (I3C), found in ... cancer cells when combined with conventional chemotherapy drugs. By ...
... change in Egypt in spite of the extensive awareness campaigns, ... flu, since May.// ,A woman in the northern ... aggressive form of bird flu virus, H5N1. ,According ... was suffering from high fever and shortness of breath. She ...
Cached Medicine News:Health News:Ethnic Variations in Hormone Levels May Cause Differences in Breast Cancer Risk 2Health News:High BMI Tied to Poor Cognitive Function in Middle-Aged Adults 2
(Date:8/29/2014)... , Aug. 29, 2014 Thoratec Corporation (NASDAQ: ... mechanical circulatory support therapies to save, support and restore ... the 2014 Morgan Stanley Global Healthcare Conference on Wednesday, ... President and Chief Executive Officer, will provide an update ... Time (9:55 a.m., Pacific Daylight Time).   ...
(Date:8/29/2014)... 29, 2014 Research and Markets  has announced ... Insight 2014" report to their offering. ... one of the largest segments of pharmaceuticals industry. The numbers ... the available therapies were unable to meet the market requirements. ... for CNS disorder, especially over the past two decades. The ...
(Date:8/29/2014)... Md. , Aug. 29, 2014  United Therapeutics ... the U.S. District Court for the District of ... favor in the company,s case against Sandoz, Inc. regarding ... Peter Sheridan ruled that U.S. Patent No. ... and enjoined Sandoz from marketing its generic product until ...
Breaking Medicine Technology:US CNS Disorders Drug Pipeline Insight 2014 2District Court Decision Received In Remodulin Patent Case 2
... July 27, 2011 Reportlinker.com announces that ... in its catalogue: India ... Till 2016 http://www.reportlinker.com/p0575381/India-Cardiac-Catheters-and-Guidewires---Market-Trends-Till-2016.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Surgical_Equipment ... This market report provides vital ...
... 26, 2011 Symmetry Medical Inc. (NYSE: SMA ... orthopaedic device industry and other medical markets, announced today that ... period ending July 2, 2011 before the market opens on ... conference call at 8:00 a.m. ET on Thursday, August 4, ...
Cached Medicine Technology:India Cardiac Catheters and Guidewires - Market Trends Till 2016 2India Cardiac Catheters and Guidewires - Market Trends Till 2016 3Symmetry Medical to Report Second Quarter 2011 Financial Results on August 4, 2011 2
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
Medicine Products: