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 he classical results of kin selection theory. This insight raises the possibility of using the tools of hitchhiking theory to explore social problems that have so far been too complicated to analyze using traditional kin selection technique.



Source-Eurekalert
'"/>




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:


(Date:6/25/2017)... ... 2017 , ... An increase in wetter weather in the Northern California area ... that; a humdinger of an allergy season. A relief from drought conditions is most ... grass and weed pollen. , “Our patients have been reporting the typical allergy ...
(Date:6/25/2017)... ... ... is Men’s Health Month and the focus is on prostate cancer. Second only ... and the third most common cause of cancer related death today; lung cancer remains in ... diagnosed with prostate cancer during his lifetime. Those at highest risk are men ...
(Date:6/24/2017)... ... June 24, 2017 , ... ... Located at 217 Portion Road in Lake Ronkonkoma, Dental365 offers patients high-quality and ... so that visits to the dentist fit into their patients’ busy lifestyles. Dental365 ...
(Date:6/23/2017)... ... June 23, 2017 , ... The Rhode Island Quality Institute ... Alerts and Dashboards, an innovative new service enabling healthcare providers to proactively coordinate ... Alerts and Dashboards provide near real-time data about patients admitted to and/or discharged ...
(Date:6/23/2017)... ... June 23, 2017 , ... Yesterday, ... proposed healthcare bill to repeal and replace the Affordable Care Act (ACA). Like ... make significant cuts to Medicaid, a public health insurance program for low-income children, ...
Breaking Medicine News(10 mins):
(Date:6/7/2017)... 2017  Novavax, Inc., (Nasdaq: NVAX ) today ... trials of its RSV F protein recombinant nanoparticle vaccine candidate ... been published in the journal Vaccine ... prior scientific conferences). The Company previously announced top line ... developing the RSV F Vaccine with the goal of protecting ...
(Date:6/5/2017)... , June 5, 2017 Kohll,s Pharmacy ... the United States . The Raizer is ... a fallen person up to an almost-standing position ... and operated by one assistant and does not ... is simple enough that a child can operate it, ...
(Date:6/1/2017)... 2017 Nutriceutical Holdings (NH), parent company of ... and KD Pharma Group have decided to join forces ... Pharma Group. KD Pharma Group will become the largest ... the entire company. "We believe we have ... to growing the NH companies by providing us with ...
Breaking Medicine Technology: