The image displays a single Arabidopsis mutant line from the Salk Institute insertion mutant collection/database. The location of the Agrobactrium T-DNA insertion is known from sequencing of The image displays a single Arabidopsis mutant line from the Salk Institute insertion mutant collection/database. The location of the Agrobactrium T-DNA insertion is known from sequencing of the genome.
Credit: Kent Schnoeker, The Salk Institute
The image depicts the locations of Agrobacterium T-DNA insertions (triangles) in a small segment of one Arabidopsis chromosome. The locations of individual predicted genes (top line) and the transcription units (bottom line) are indicated by the multi-colored boxes.
Credit: Huaming Chen/Joseph Ecker
Scientists have inactivated almost three-quarters of all genes in the genome of Arabidopsis thaliana, a species widely used in plant research. The feat, which results in the largest so-called "knockout" gene collection of a complex multi-cellular organism, now allows researchers to study the function of each of those genes individually or together.
The findings, published in the August 1 issue of the journal Science, mark an important milestone in the field of plant genomics. Following the release of the Arabidopsis genome sequence in 2000, the National Science Foundation (NSF) jump started the next phase of plant genome research, instituting the Arabidopsis 2010 Project to determine the location and function of each and every Arabidopsis gene by the year 2010. Knowing the function of all the genes in this model plant will aide scientists immensely in their work to improve disease resistance, control how quickly or slowly fruit will ripen, and create healthier and improved crops.
Joe Ecker at the Salk Institute for Biological Studies and his research team created knockouts, or inactivating mutations, in 21,700 of the estimated 29,454 Arabidopsis genes. Knocking out a gene or group of genes allows scientists to observe what goes wrong in the mutant plant and determine what function the inactivated gene(s) had in the plant system.
Andrea Spiker | National Science Foundation
Nesting aids make agricultural fields attractive for bees
20.07.2017 | Julius-Maximilians-Universität Würzburg
The Kitchen Sponge – Breeding Ground for Germs
20.07.2017 | Hochschule Furtwangen
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
19.07.2017 | Event News
12.07.2017 | Event News
12.07.2017 | Event News
20.07.2017 | Information Technology
20.07.2017 | Materials Sciences
20.07.2017 | Physics and Astronomy