Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Rhythmic genomics -- the yeast metronome and the walk of life

09.04.2009
New genome sequence information from the humble baker's yeast has revealed surprising variation in a set of genes that can be thought of as nature's oldest clock. In a paper published in Genome Research scientists show how ribosomal RNA genes that are essential to all Earth's organisms provide insight into how genomes maintain their integrity on their evolutionary journey.

Ribosomal RNA sequence changes have been ticking away like clockwork for over 3 billion years, maybe even pre-dating the origin of the DNA world itself. However, even the slightest changes in sequence of these genes can be fatal. It is vital to conserve the important genetic 'cogs' to make sure cells function correctly. However, significant changes do occur, contrary to expectation, and yet the yeast somehow still survives.

Furthermore, when two yeasts hybridise the clocks appear to re-set, apparently overwriting each others' rhythm and eliminating unwanted variations on the theme. This provides clues as to how key motifs are conserved and allows us to track the evolutionary history of hybrids.

Steve James, lead researcher at the Institute of Food Research (IFR), said "I have sequenced these genes to selectively identify yeast species for over 15 years and had no idea they would turn out to be so variable."

Rob Davey, computational biologist at the National Collection of Yeast Cultures (NCYC), said "we can use new computer techniques to model the changes mathematically and really get to grips with what orchestrates the variation in these important cell housekeepers."

Ian Roberts, Curator of NCYC, said "Yeasts are everywhere around us in nature and industry. This extra level of detail allows us to resolve important differences between yeasts and gain maximum benefits from their use in food, drink and healthcare."

This work was carried out in collaboration with the Wellcome Trust Sanger Institute and the Massachusetts Institute of Technology. The IFR is an institute of the Biotechnology and Biological Sciences Research Council (BBSRC).

Contacts:

IFR Press Office
Zoe Dunford, Tel: 01603 255111, email: zoe.dunford@bbsrc.ac.uk
Andrew Chapple, Tel: 01603 251490, email: andrew.chapple@bbsrc.ac.uk

Andrew Chapple | EurekAlert!
Further information:
http://www.bbsrc.ac.uk
http://www.ncyc.co.uk
http://www.ifr.ac.uk

More articles from Life Sciences:

nachricht Mass spectrometry sheds new light on thallium poisoning cold case
14.12.2018 | University of Maryland

nachricht Protein involved in nematode stress response identified
14.12.2018 | University of Illinois College of Agricultural, Consumer and Environmental Sciences

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Data use draining your battery? Tiny device to speed up memory while also saving power

The more objects we make "smart," from watches to entire buildings, the greater the need for these devices to store and retrieve massive amounts of data quickly without consuming too much power.

Millions of new memory cells could be part of a computer chip and provide that speed and energy savings, thanks to the discovery of a previously unobserved...

Im Focus: An energy-efficient way to stay warm: Sew high-tech heating patches to your clothes

Personal patches could reduce energy waste in buildings, Rutgers-led study says

What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...

Im Focus: Lethal combination: Drug cocktail turns off the juice to cancer cells

A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.

The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...

Im Focus: New Foldable Drone Flies through Narrow Holes in Rescue Missions

A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.

Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...

Im Focus: Topological material switched off and on for the first time

Key advance for future topological transistors

Over the last decade, there has been much excitement about the discovery, recognised by the Nobel Prize in Physics only two years ago, that there are two types...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

New Plastics Economy Investor Forum - Meeting Point for Innovations

10.12.2018 | Event News

EGU 2019 meeting: Media registration now open

06.12.2018 | Event News

 
Latest News

Data use draining your battery? Tiny device to speed up memory while also saving power

14.12.2018 | Power and Electrical Engineering

Tangled magnetic fields power cosmic particle accelerators

14.12.2018 | Physics and Astronomy

In search of missing worlds, Hubble finds a fast evaporating exoplanet

14.12.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>