Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Genome sequencing of 3 parasitoid wasp species

18.02.2010
An international consortium of scientists, including Universitat Autònoma de Barcelona (UAB) researcher Deodoro Oliveira, have sequenced the genome of three species of parasitoid wasps of the genus Nasonia. The research offers new basic information on the genetic mechanisms of evolution.

It is also of great importance for the control of agricultural pests and of insect-borne diseases, since parasitoid wasps bite and lay eggs on much larger insects, many of which are the ones to later cause plagues or spread infectious diseases. The research could pave the way for new methods of controlling these plagues and preventing the propagation of diseases.

Parasitoid wasps are four times smaller than the common fruit fly. They lay eggs within other insects and kill their host before leaving. Although their size is insignificant, their importance in the control of populations of agricultural pests is crucial. Thanks to these insects billions of euros worth of crops are saved each year. Not only that, but the genus Nasonia is very useful for research carried out in genetics, given that the males evolve from non-fertilised eggs and only have one set of chromosomes, and it is therefore immediately possible to detect the effects of chromosomes which have undergone mutations. In experiments in which mutations take place, the altered genes are easily detected because there is no copy of the gene which could mask the effects.

The research, recently published in the journal Science, shows the full genome sequencing of the species Nasonia vitripennis, Nasonia giraulti and Nasonia longicornis. It also points out key discoveries made with these sequencings, such as the identification of the genes responsible for the venom produced by wasps. Scientists have identified 79 different proteins in this venom, 23 of which had never been observed before. This information could be very useful in the development of new drugs, since these proteins have important physiological effects on the cells of their hosts. With the complete sequencing of these genomes, research also can identify the genes that determine which specific insects will be attacked by the parasitoid wasp, as well as the specific food needs of its offspring at large scale.

The genome sequencing has led to important discoveries. A set of nuclear and mitochondrial genes have been discovered which evolve much more rapidly than usual, and which could accelerate the process of formation of new species. Researchers also observed bacterial and virus genes included in the genome of wasps. These findings have helped to better understand the genetic mechanisms regulating the evolution of living beings.

Dr Deodoro Oliveira is postdoctoral researcher and lecturer in Genetics at the UAB Department of Genetics and Microbiology. His research focuses on the distribution and evolution of the transposable element Galileo in the genus Drosophila. The follow-up to his research consists in molecular approximation aimed at the study of evolutionary problems. He has worked on Nasonia genetics and genomes and on the intracellular bacteria Wolbachia at the laboratory of Dr John Werren at University of Rochester, New York. Prior to that Dr Oliveira worked on the study of evolutionary relations of the genus Drosophila at the American Museum of Natural History of New York.

Deodoro Oliveira | EurekAlert!
Further information:
http://www.uab.cat

More articles from Life Sciences:

nachricht The birth of a new protein
20.10.2017 | University of Arizona

nachricht Building New Moss Factories
20.10.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Terahertz spectroscopy goes nano

20.10.2017 | Information Technology

Strange but true: Turning a material upside down can sometimes make it softer

20.10.2017 | Materials Sciences

NRL clarifies valley polarization for electronic and optoelectronic technologies

20.10.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>