Navigation Links
New rust resistance genes added to common beans
Date:6/4/2010

New cultivars of common bean developed by Agricultural Research Service (ARS) and university scientists could shore up the legume crop's defenses against the fungal disease common bean rust.

According to Talo Pastor-Corrales, an ARS plant pathologist in Beltsville, Md., the new cultivars possess two or more genes for resistance to the rust fungi. Most of the cultivars also harbor Ur-11, which is considered the most effective rust-resistance gene in the world.

Pastor-Corrales and his colleagues at the University of Nebraska and Colorado State University resorted to this multi-gene strategy in response to the high diversity of strains of the bean rust pathogen. Lately, virulent new races of rust that have overcome the Ur-3 resistance gene appeared in Michigan and North Dakota.

Until recently, this gene had been very effective in controlling rust in the United States, epecially in North Dakota and Michigan, the country's largest bean-growing states. Now, Ur-3-protected varieties that once withstood the disease are succumbing to it, and there's concern the new races will spread to other Northern Plains states where common beans are grown, such as Colorado and Nebraska.

Pastor-Corrales' search for novel sources of rust resistance in dry-, snap- and other common beans has taken him to 21 countries in the Americas and 11 in Africa. The battle against rust is complicated by the fact that races present in crop fields can vary from one year to the next, adds Pastor-Corrales, who leads a bean breeding project at the ARS Soybean Genomics and Improvement Research Unit in Beltsville.


'/>"/>

Contact: Jan Suszkiw
Jan.Suszkiw@ars.usda.gov
301-504-1630
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

Page: 1

Related biology news :

1. Researchers discover new strategies for antibiotic resistance
2. St. Jude finds factors that accelerate resistance to targeted therapy in lymphoblastic leukemia
3. Binghamton University researchers investigate evolving malaria resistance
4. Drug could improve pregnancy outcomes in wider range of women with insulin resistance
5. Feline virus, antiviral drug studied to understand drug resistance
6. Manure management reduces levels of antibiotics and antibiotic resistance genes
7. High degree of resistance to antibiotics in Arctic birds
8. Gene that controls ozone resistance of plants could lead to drought-resistant crops
9. BARACLUDE data show low resistance over 5 years in nucleoside-naive hepatitis B patients
10. Common aquatic animals show extreme resistance to radiation
11. Ibuprofen or acetaminophen in long-term resistance training increases muscle mass/strength
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... After decades of decline, grasses have returned to ... eye, the marsh in those places seems healthy again, ... service of the marsh coastal protection remains ... ecosystem function hasn,t come back," said ecologist Mark Bertness, ... the study in the journal Biological Conservation . ...
(Date:9/17/2014)... significantly faster since the 1960s. The typical development phases ... have accelerated -- by as much as 70 percent. ... by scientists from Technische Universitt Mnchen based on long-term ... observed since 1870. Their findings were published recently in ... dieback" was a hot topic, with the very survival ...
(Date:9/17/2014)... crime unit designed to fight food fraud in ... being passed off as beef scientists from Germany ... describe their approach, which represents a vast improvement over ... Food Chemistry . , Hans-Ulrich Humpf and colleagues note ... But they also say that adding, for example, horse ...
Breaking Biology News(10 mins):Cape Cod saltmarsh recovery looks good, falls short 2Cape Cod saltmarsh recovery looks good, falls short 3Global change: Trees continue to grow at a faster rate 2Global change: Trees continue to grow at a faster rate 3
... Biotechnology and Biological Sciences Research Council (BBSRC) Sustainable Bioenergy ... could help us breed grasses with improved properties for ... by a team from the University of Cambridge and ... findings are published today (Tuesday 17 Jan) in the ...
... Nitrogen is both an essential nutrient and a pollutant, ... that feeds billions, a benefit and a hazard, depending ... have spread nitrogen liberally around the planet, say sixteen ... in Ecology series, "Excess Nitrogen in the U.S. ...
... Worldwide pandemics of influenza caused widespread death and illness ... weather patterns around the time of these pandemics finds that ... the equatorial Pacific. The study,s authors--Jeffrey Shaman of Columbia University,s ... Harvard School of Public Healthnote that the La Nia pattern ...
Cached Biology News:Breeding better grasses for food and fuel 2Breeding better grasses for food and fuel 3Solutions for a nitrogen-soaked world 2Does the La Niña weather pattern lead to flu pandemics? 2
(Date:9/17/2014)... 2014 A biodegradable polymer can ... as bacteria, fungi, and algae into smaller units ... inorganic compounds, carbon dioxide, and humus in a ... and improved costs, biodegradable polymers are proving to ... to conventional polymers. Primary factors that are responsible ...
(Date:9/17/2014)... 17, 2014 JH Technologies ... located in Irvine. JH Technologies, a leader in ... recently announced an expanded partnership with Leica Microsystems into ... and image analysis solutions will be featured at the ... The new showroom facility is located within the JH ...
(Date:9/17/2014)... Pa. , Sept. 17, 2014 BioClinica®, ... and eClinical Solutions, today announced three of its experts ... for Clinical Data Management to be held September ... Nevada . The Company also announced the innovative ... raise overall quality in clinical trials acquired earlier this ...
(Date:9/17/2014)... Hershey, PA & Rockville, MD (PRWEB) September 17, 2014 ... it won a Small Business Innovation Research (SBIR) grant ... allergy immunotherapy. The award will provide ITI with approximately ... , Tree nuts, a leading cause of food allergy, ... leading cause of anaphylaxis behind peanut allergy. Tree nut ...
Breaking Biology Technology:Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 3JH Technologies displays newest microscope imaging technology at Southern California showroom grand opening 2JH Technologies displays newest microscope imaging technology at Southern California showroom grand opening 3BioClinica to Present at 20th Annual SCDM Conference 2BioClinica to Present at 20th Annual SCDM Conference 3Immunomic Therapeutics Awarded SBIR Grant to Develop Multi-Nut Allergy Immunotherapy 2Immunomic Therapeutics Awarded SBIR Grant to Develop Multi-Nut Allergy Immunotherapy 3
Mouse monoclonal [SPM217] to Secretory Component Glycoprotein ( Abpromise for all tested applications)....
Mouse monoclonal [3G8] to MDMA ( Abpromise for all tested applications)....
Shh Antibody Shipping Temperature: HOT Storage Temperature: -20C...
Anti-Cohesin (Scc1/Rad21) Monoclonal Antibody Research Focus: signal transduction Storage: -20C Shipping Temperature: +4C...
Biology Products: