About Careers MedBlog Contact us
Medindia LOGIN REGISTER
Advertisement

When It's About Genes, Copying Strategies Work Best

by Tanya Thomas on March 3, 2011 at 9:21 AM
Font : A-A+

 When It's About Genes, Copying Strategies Work Best

A new study has suggested that blindly copying what your parents did - no matter how stupid it may seem - could be the best strategy for the long-term success of your genes.

The research by Universities of Exeter and Bristol has shown that apparently mindless survival strategies-such as the long-distance migration of many animals to breed at the place they were born-may not be as impractical as they appear.

Advertisement

Using mathematical models, researchers compared the evolutionary success of straightforward copying strategies with that of more dynamic approaches that focused on adapting to new information to make key lifestyle decisions.

Sasha Dall, from Exeter's Centre for Ecology and Conservation in Cornwall, said, "From an individual perspective, sometimes sticking to what your parents did may seem a ridiculously stupid thing to do, especially when they can be out of touch with current events. However, it's a different story when you look at it from the perspective of your genes."
Advertisement

"What we actually found is, in certain circumstances, it can be a more effective method of ensuring long-term survival of your genes than more nuanced strategies. So, surprisingly, this kind of mindless strategy can actually be more effective than the more sophisticated alternative of adjusting to changes you detect in your environment," said Dall.

The conclusion centres on what is called the 'multiplier effect', which means that if you are in exactly the right environment for your genotype, you will thrive and breed.

So, over generations, more and more individuals will find themselves in conditions to which they are suited if they just do what their parents did.

Those in the wrong place for their genotypes will not do well and others who behave like them will leave fewer and fewer descendents - leaving those being born in the right places to dominate the population.

Professor John McNamara from the Bristol's School of Mathematics added: "The sheer fact you are alive is a big clue, because your parents must have got it right. If you follow their lead, you should get it right too.'

"Using a mathematical model, we've shown this is more successful than the alternative approach of adjusting behaviour to current conditions when the environment changes a bit, but not too much, between generations, and where there is a choice of both good and bad places to be.

"When you try to adapt to your environment, you can make mistakes which could prove costly or even fatal. Also, this approach may require a lot of time and effort - which again could limit the success it brings on an evolutionary basis."

The findings have been published in the journal Ecology Letters.

Source: ANI
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
What's New on Medindia
Test  Your Knowledge on Heart
Test Your Knowlege on Genes
Obesity in Teens Make Inroads into Early Atrial Fibrillation
View all
News Archive
Date
Category
Advertisement
News Category

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

Most Popular on Medindia

Blood Donation - Recipients Vent Forte (Theophylline) Accident and Trauma Care Sanatogen Indian Medical Journals The Essence of Yoga Drug - Food Interactions Sinopril (2mg) (Lacidipine) Post-Nasal Drip Calculate Ideal Weight for Infants
This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use
×

When It's About Genes, Copying Strategies Work Best Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests