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:1/27/2016)... CHESTER, Ohio , Jan. 27, 2016  Rite ... supplier based in West Chester, Ohio ... their award winning service staff, based in ... technical capacity and ability to provide modifications, installations and ... John Dovalina , CEO of PLUS, commented, "PLUS has ...
(Date:1/25/2016)... , Jan. 25, 2016  Glencoe Software, the ... pharma and publication industries, will provide the data management ... Centre (NPSC). ... Phenotypic analysis measures ... whole organisms, allowing comparisons between states such as health ...
(Date:1/22/2016)... DUBLIN , Jan. 22, 2016 /PRNewswire/ ... announced the addition of the "Global ... report to their offering. --> ... of the "Global Biometrics Market in ... offering. --> Research and ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... , Feb. 11, 2016  Dovetail Genomics™ LLC today ... beta program for a planned metagenomic genome assembly service. ... company,s metagenomic genome assembly method in a talk on ... Biology & Technology conference in Orlando, Fla. ... highly complex datasets is difficult. Using its proprietary ...
(Date:2/11/2016)... ... February 11, 2016 , ... Global ... treatment clinic in Quito, Ecuador. The new facility will provide advanced protocols and ... from around the world. , The new GSCG clinic is headed by ...
(Date:2/10/2016)... ASAE is introducing a hybrid membership model which will ... of joining or renewing through an organizational purchasing model. ... every employee in any size association or AMC office ... member benefits.   John H. Graham, IV ... allow organizations of any size and their employees to ...
(Date:2/10/2016)... ... February 10, 2016 , ... Benchmark Research, a ... promotion of two long-standing principal investigators (PI) to the roles of Chief Medical ... Development. , Dr. Laurence Chu, a Benchmark Research PI in the Austin office, ...
Breaking Biology Technology: