A team of researchers at the University of Georgia has discovered a new way that genetic entities called transposable elements (TEs) can promote evolutionary change in plants.
The research, published Sept. 30 in the journal Nature, was led by Dr. Susan Wessler, a Distinguished Research Professor of plant biology at UGA. The Wessler lab studies TEs, which are pieces of DNA that make copies of themselves that can then be inserted throughout the genome. The process can be highly efficient. Almost half of the human genome is derived from TEs and, this value can go to an astounding 95 percent or even higher for some plants, such as the lily. "Normally transposable elements just copy themselves, said Wessler, "But there were a few anecdotal reports of plant TEs that contained fragments of plant genes that the TE had apparently captured while it was copying itself. The fact that these instances were so rare suggested that this was not an important process."
In analyzing the TE content of the entire rice genome, Ning Jiang and Xiaoyu Zhang, two postdoctoral fellows in the Wessler lab along with Zhirong Bao, a graduate student in the lab of Dr. Sean Eddy of Washington University in St. Louis, discovered that capturing rice gene fragments is a way of life for one type of TE called MULEs.
Kim Carlyle | EurekAlert!
Closing the carbon loop
08.12.2016 | University of Pittsburgh
Newly discovered bacteria-binding protein in the intestine
08.12.2016 | University of Gothenburg
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
08.12.2016 | Life Sciences
08.12.2016 | Physics and Astronomy
08.12.2016 | Materials Sciences