Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New genome sequence will aid study of important food, fuel crops

11.02.2010
A global initiative that includes key scientists from Oregon State University has successfully sequenced the genome of the wild grass Brachypodium distachyon, which will serve as a model to speed research on improved varieties of wheat, oats and barley, as well as switchgrass, a crop of major interest for biofuel production.

The advance was announced today in the journal Nature.

The primary international repository for the Brachypodium genome sequence data, called “BrachyBase,” is situated at OSU, and helps scientists around the world make important advances for human nutrition and new energy sources.

Brachypodium is actually a wild annual grass plant, native to the Mediterranean and Middle East, with little agricultural importance and is of no major economic value itself. But it allows researchers to obtain genetic information for grasses much more easily than some of its related, but larger and more complex counterparts with much larger genomes – plants which are hugely important in world nutrition.

“Some plants are a geneticist’s nightmare,” said Todd Mockler, a principal investigator on this project and assistant professor in the Department of Botany and Plant Pathology. “Wheat, for instance, is an important crop, but it has an enormous and complex genome five times larger than a human.

“Brachypodium is just the opposite of that,” added Mockler, who is a member of OSU’s Center for Genome Research and Biocomputing. “It has one of the smallest known genomes among grasses, it’s easy to work with and it is physically small. We can grow 50,000 plants in a normal-sized laboratory and do larger experiments. The plants are easy to grow, easy to genetically manipulate, easy to study and have a short lifecycle.

“And what we learn from Brachypodium will be of critical value in work with other plants of agronomic importance.”

A team of 12 OSU researchers led the transcriptome and small RNA sequencing on this project, which involved scientists from around the world, in work supported by the Joint Genome Institute of the U.S. Department of Energy. Other parts of the initiative were supported by the U.S. Department of Agriculture, and the work conducted at OSU was also funded in part by the OSU Computational and Genome Biology Initiative and the Oregon State Agricultural Research Foundation.

“We are launching Brachypodium with one of the most comprehensive genome annotations of any species, ever,” Mockler said. “This is a point that took us a decade or more to reach with other plant species, and that’s a reflection of some extraordinary new DNA sequencing technology available at OSU and elsewhere. It gives scientists a chance to move quickly ahead with genetic advances.”

Development of new genomic technologies for plants like Brachypodium has been a major focus of scientists at OSU.

“What this work provides is a highly informative roadmap to explore and improve plants of great agricultural value, like wheat,” said James Carrington, director of the Center for Genome Research and Biocomputing, and a co-author of the study. “The quality of science that can be done with plants like Brachypodium is really exceptional.”

Much of the early funding support was from the Department of Energy, Mockler said, which wants to develop better feedstocks for production of cellulosic ethanol – essentially, fuel from non-food plant material, as opposed to food crops such as corn. It’s widely believed that a grass plant called switchgrass may work well for this, but it’s never been domesticated – the evolution of switchgrass as a crop is now at the stage that corn, for instance, was about 10,000 years ago, before generations of selective breeding produced improved crops. Genetic modification may be able to produce switchgrass that could grow taller, faster, and have cell walls that are easier to break down, or lead to plants that better resist drought or disease.

“Beyond that, however, there may also be opportunities to improve food crops,” Mockler said. “This is the first sequenced plant genome that is closely related to temperate cereals such as wheat and oats, which are important food crops around the world.”

The “cool season” cereal, forage and turf grasses, of which Brachypodium is a member, are part of the Pooideae subfamily, and the last of three important subfamilies of grasses to have one of their genomes sequenced. The other important grass groups that, combined, provide the bulk of human nutrition are Ehrhartoideae, which includes rice; and Panicoideae, with includes corn, sorghum, sugarcane and other grass crops. With more than 3,000 species, the Pooideae is the largest grass subfamily. Some early work has already been done, now that the Brachypodium genome has been sequenced, to compare the traits of these three major grass subfamilies.

Brachypodium seeds have been shared with more than 300 laboratories in 25 countries, and the genome information is now freely available to any researcher in the world.

The similarities in gene content and gene family structure between Brachypodium, rice and sorghum supports the value of Brachypodium as a functional genomics model for all grasses,” the researchers wrote in their study. “The Brachypodium genome sequence analysis reported here is therefore an important advance towards securing sustainable supplies of food, feed and fuel from new generations of grass crops.”

About the OSU College of Science: As one of the largest academic units at OSU, the College of Science has 14 departments and programs, 13 pre-professional programs, and provides the basic science courses essential to the education of every OSU student. Its faculty are international leaders in scientific research.

Todd Mockler | EurekAlert!
Further information:
http://www.oregonstate.edu

More articles from Life Sciences:

nachricht Researchers uncover protein-based “cancer signature”
05.12.2016 | Universität Basel

nachricht The Nagoya Protocol Creates Disadvantages for Many Countries when Applied to Microorganisms
05.12.2016 | Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

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...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

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...

Im Focus: Quantum Particles Form Droplets

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...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

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,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

NASA's AIM observes early noctilucent ice clouds over Antarctica

05.12.2016 | Earth Sciences

Shape matters when light meets atom

05.12.2016 | Physics and Astronomy

Researchers uncover protein-based “cancer signature”

05.12.2016 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>