Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

English Flies v Italian Flies And The Rhythm Of Life

04.07.2007
Italian flies behave completely differently from English ones – and the difference lies in their genes, a new study from the University of Leicester has discovered.

The finding in the world renowned Department of Genetics at the University of Leicester has shed new light on the rhythm of life.

The Leicester team has published its findings in two back-to-back papers in the journal Science and further develops a decade-old Leicester discovery.

The Leicester research relates to two important aspects of life:

... more about:
»Genetics »flies

The 24-hour body clock known as the circadian cycle

The seasonal cycle (hibernation) known as diapause in insects

Professor Bambos Kyriacou and his team in Genetics found for the first time a connection between these two cycles in a single gene. Their finding settles a decades-old argument about the correlations between the two cycles.

This gene, called timeless, was found to control the 24-hour rhythm of the fruifly as well as its seasonal cycle.

Professor Kyriacou said: “The story begins in 1997 with a discovery by Dr Ezio Rosato, now Reader in the Genetics department, but then a postdoc in my lab. He found that the timeless gene came in two different versions L-tim and S-tim. In collaboration with Professor Rudi Costa’s group in Padova Italy, a study of natural European fly populations revealed that the L-tim variant was found predominantly in the south of Europe, and S-tim in the north.

“Dr Eran Tauber, now Lecturer in Genetics, but also formerly a postdoc in my laboratory, then showed that L-tim had been derived from S-tim by a mutation that occurred about 8000 years ago in southeastern Italy, and then had spread by natural selection in all directions.”

Professor Kyriacou explained that this occurred as a result of the different environments, particularly daylight conditions and temperature, between northern and southern Europe.

“These studies are important, not just because they show that the timeless gene connects the two major biological cycles on our planet, but as a pretty complete evolutionary story,” he said.

Ather Mirza | alfa
Further information:
http://www.le.ac.uk

Further reports about: Genetics flies

More articles from Life Sciences:

nachricht A novel socio-ecological approach helps identifying suitable wolf habitats
17.02.2017 | Universität Zürich

nachricht New, ultra-flexible probes form reliable, scar-free integration with the brain
16.02.2017 | University of Texas at Austin

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Switched-on DNA

20.02.2017 | Materials Sciences

Second cause of hidden hearing loss identified

20.02.2017 | Health and Medicine

Prospect for more effective treatment of nerve pain

20.02.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>