Navigation Links
Superior offspring without genetic modification

We don't always turn out like our parents.

Sometimes we become even better.

How this happens is the subject of a new research project at the University of Gothenburg.

When two gene pools combine, you might expect the characteristics of the offspring to end up somewhere in the middle between those of its parents. But children often have characteristics that are better or worse than that middle value, sometimes even better than both parents.

Better horses, redder tomatoes

This is not a newly-recognized phenomenon. Indeed, it has been exploited to breed better horses, redder tomatoes, more nutritious rice, and salmon that can thrive in fish farms, to mention but a few examples.

New research project

Heterosis is the scientific term for being better than your parents. Why does heterosis occur? What is the molecular mechanism? How common is it? How can we make it happen more often and to greater effect? Researchers at the Department of Cell and Molecular Biology at the University of Gothenburg and the Norwegian University of Life Sciences outside Oslo are aiming to find answers to these questions in a new research project.

Bakers yeast

Using baker's yeast as a model, Jonas Warringer and his colleague Stig Omholt are mapping the incidence of heterosis for a large number of different characteristics. They hope to discover the mechanisms in human cells that govern the creation of children with characteristics sometimes superior to those of their parents. They are initially studying yeast cells - in which the mechanism has already been established.

Brewers yeast

In their first studies, Warringer and Omholt have shown how heterosis has enabled brewer's yeast to develop tolerance to copper, something that helps the yeast to survive in the large copper tanks used in the brewing industry. After some of the results where published in Nature in March this year, the interest in Warringers and Omholts research has increased.

Life on Mars

"Once we understand how heterosis occurs, breeding can be controlled so that we can selectively promote desirable characteristics in plants and animals more quickly and effectively. This could help in the fight against famine, help us develop new biofuels for cars, and possibly, in the distant future, make it possible to create a functioning ecosystem on Mars - without having to resort to genetic modification," says Jonas Warringer.


Contact: Jonas Warringer
University of Gothenburg

Related biology news :

1. Mayo Clinic study: Ossurs collars superior in immobilization and reduction of pressure
2. Positron emission tomography superior to standard evaluation tools in measuring treatment response
3. Girls have superior sense of taste to boys
4. Species still have more viable offspring if they can choose their best mate
5. Moms obesity during conception phase may set the stage for offsprings obesity risk
6. Mice mothers devote energies to offspring when life is threatened
7. Eating eggs when pregnant affects breast cancer in offspring
8. A low dose of caffeine when pregnant may damage the heart of offspring for a lifetime
9. Mothers pass on disease clues to offspring
10. Mothers give interlopers offspring a head start in life
11. Bisphenol A exposure in pregnant mice permanently changes DNA of offspring
Post Your Comments:
Related Image:
Superior offspring without genetic modification
(Date:4/15/2016)...  A new partnership announced today will help ... in a fraction of the time it takes ... life insurance policies to consumers without requiring inconvenient ... Diagnostics, rapid testing (A1C, Cotinine and HIV) and ... weight, pulse, BMI, and activity data) available at ...
(Date:3/31/2016)... 31, 2016   ... the "Company") LegacyXChange is excited to release ... soon to be launched online site for trading 100% ... ) will also provide potential shareholders a sense of ... to an industry that is notorious for fraud. The ...
(Date:3/22/2016)... , March 22, 2016 ... report "Electronic Sensors Market for Consumer Industry by Type ... Others), Application (Communication & IT, Entertainment, Home ... Global Forecast to 2022", published by MarketsandMarkets, ... expected to reach USD 26.76 Billion by ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... A person commits a crime, and the detective ... the criminal down. An outbreak of foodborne illness ... (FDA) uses DNA evidence to track down the bacteria that ... It,s not. The FDA has increasingly used a complex, cutting-edge ... illnesses. Put as simply as possible, whole genome sequencing is ...
(Date:6/23/2016)... FRANCISCO , June 23, 2016   EpiBiome ... has secured $1 million in debt financing from Silicon ... ramp up automation and to advance its drug development ... its new facility. "SVB has been an ... beyond the services a traditional bank would provide," said ...
(Date:6/23/2016)... 23, 2016  Blueprint Bio, a company dedicated to ... medical community, has closed its Series A funding round, ... "We have received a commitment from Forentis ... need to meet our current goals," stated Matthew ... runway to complete validation on the current projects in ...
(Date:6/23/2016)... ... June 23, 2016 , ... Velocity Products, a division of ... and optimized exclusively for Okuma CNC machining centers at The International Manufacturing Technology ... among several companies with expertise in toolholding, cutting tools, machining dynamics and distribution, ...
Breaking Biology Technology: