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
New application for acoustics helps estimate marine life populations
16.01.2018 | University of California - San Diego
Unexpected environmental source of methane discovered
16.01.2018 | University of Washington Health Sciences/UW Medicine
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...
The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
16.01.2018 | Materials Sciences
16.01.2018 | Materials Sciences
16.01.2018 | Power and Electrical Engineering