Navigation Links
Stem rust-resistant wheat landraces identified
Date:10/24/2011

This release is available in Spanish.

U.S. Department of Agriculture (USDA) scientists have identified a number of stem rust-resistant wheat varieties and are retesting them to verify their resistance.

Stem rust occurs worldwide wherever wheat is grown. Over a large area, losses from stem rust can be severe, ranging from 50 to 70 percent, and individual fields can be destroyed.

Agricultural Research Service (ARS) plant pathologist Mike Bonman at the agency's Small Grains and Potato Germplasm Research Unit in Aberdeen, Idaho, and his colleagues screened more than 3,000 wheat landraces from the U.S. National Small Grains Collection against new races of the stem rust pathogen found in wheat fields in Kenya. Landraces with confirmed resistance are being crossed with susceptible wheat to determine the genetic basis of the resistance.

ARS is USDA's principal intramural scientific research agency, and the research supports the USDA priority of promoting international food security.

Field trials in Kenya to screen for resistance are vital to this work, according to Bonman, who worked at the International Rice Research Institute (IRRI) for 9 years before coming to ARS. He is now working collaboratively with the International Maize and Wheat Improvement Center (CIMMYT) near Mexico City, and the Kenya Agricultural Research Institute (KARI).

Excellent procedures have been developed by CIMMYT and KARI personnel to promote rust disease in the nursery, enabling Bonman to evaluate which ARS accessions are resistant to rust. According to Bonman, CIMMYT facilitates the nursery and site logistics, and ARS helps with evaluating the level of rust development in wheat varieties.

The research team's goal is to find new genes for resistance to a rust strain called Ug99, because that strain has the capacity to overcome many of the resistance genes that have been used for the past 50 years. This work will help Africa's growers now and will help suppress disease and reduce damage in developing countries. It also will prepare the United States for Ug99 if the disease arrives here, according to Bonman.


'/>"/>

Contact: Sharon Durham
Sharon.Durham@ars.usda.gov
301-504-1611
United States Department of Agriculture - Research, Education and Economics
Source:Eurekalert

Related biology news :

1. Scab resistance in durum wheat
2. Plant pathologist finding Kansas wheat fields a molecular battleground this season
3. Genome offers clue to functions of destructive wheat fungus
4. Genome sequence could reveal Achilles heels of important wheat disease
5. Sport doctors say non-alcoholic wheat beer boosts athletes health
6. USDA researchers, collaborators sequence genomes of fungi that threaten wheat, poplars
7. $40 million helps Cornell lead global battle against wheat pathogen that threatens food security
8. Examining climate change effects on wheat
9. Wheat resistance genes failing, new approach needed to stop flies
10. New Anglo-Swiss research questions impact of GM wheat on insects
11. UK researchers release draft sequence coverage of wheat genome
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/9/2016)... June 9, 2016 Paris ... Teleste,s video security solution to ensure the safety of people ... during the major tournament Teleste, an international ... and services, announced today that its video security solution will ... to back up public safety across the country. The system ...
(Date:6/2/2016)... Perimeter Surveillance & Detection Systems, ... Infrastructure, Support & Other Service  The latest ... comprehensive analysis of the global Border Security market ... of $17.98 billion in 2016. Now: In ... in software and hardware technologies for advanced video surveillance. ...
(Date:5/12/2016)... , May 12, 2016 WearablesResearch.com ... just published the overview results from the Q1 wave ... the recent wave was consumers, receptivity to a program ... data with a health insurance company. "We ... to share," says Michael LaColla , CEO of ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... ... ... Researchers at the Universita Politecnica delle Marche in Ancona combed medical journal articles ... findings are the subject of a new article on the Surviving Mesothelioma website. ... blood, lung fluid or tissue of mesothelioma patients that can help point doctors to ...
(Date:6/23/2016)... June 23, 2016 /PRNewswire/ - FACIT has announced ... biotechnology company, Propellon Therapeutics Inc. ("Propellon" ... commercialization of a portfolio of first-in-class WDR5 inhibitors ... such as WDR5 represent an exciting class of ... precision medicine for cancer patients. Substantial advances have ...
(Date:6/23/2016)... Calif. , June 23, 2016  The Prostate Cancer Foundation ... increasingly precise treatments and faster cures for prostate cancer. Members of the Class ... across 15 countries. Read More About the Class of ... ... ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the ... at the Arkansas State Crime Laboratory, has joined STACS DNA as a Field Application ... team,” said Jocelyn Tremblay, President and COO of STACS DNA. “In further expanding our ...
Breaking Biology Technology: