Featured Research

from universities, journals, and other organizations

New Rust- And Mosaic-Resistant Beans Released

Date:
January 17, 2005
Source:
USDA / Agricultural Research Service
Summary:
Six new germplasm lines of the Great Northern dry bean--the first lines to have four resistance genes to a key rust pathogen--have been released to the public by the Agricultural Research Service (ARS), the Michigan Agricultural Experiment Station and the University of Nebraska at Lincoln.

New lines of Great Northern beans, such as those pictured here, have been released with resistance to key diseases.
Credit: Photo courtesy of USDA / Agricultural Research Service

Six new germplasm lines of the Great Northern dry bean--the first lines to have four resistance genes to a key rust pathogen--have been released to the public by the Agricultural Research Service (ARS), the Michigan Agricultural Experiment Station and the University of Nebraska at Lincoln.

Plant pathologist Marcial A. Pastor-Corrales of the ARS Vegetable Laboratory at Beltsville, Md., worked with his colleagues to breed BelMiNeb-RMR-8, -9, -10, -11, -12 and -13. The germplasm lines are resistant to all known strains of the rust pathogen Uromyces appendiculatus. What's more, they have two additional genes that protect them against all strains of two other organisms--bean common mosaic virus and bean common mosaic necrosis virus.

The Great Northern bean is the fourth most important bean class in the United States. These large, white beans are popular in baked bean dishes as well as in soups.

To breed the resistant lines, the scientists used gene pyramiding, in which more than one desirable gene is added to the plant. In this case, four genes that are resistant to rust and two genes that are resistant to the viruses were added through conventional breeding with molecular marker assisted selection. There are many strains of the pathogens that cause the rust and viral diseases. These strains may vary from one location and year to another. By placing four rust and two mosaic resistance genes in the BelMiNeb beans, there is a better chance that the bean will stay resistant to the rust and to the two viral diseases.

Rust has severely reduced various dry bean yields during the past few decades, and in some years has damaged half of the crop in certain locations. Since the BelMiNeb beans are naturally resistant to rust and several viruses, farmers will not have to use chemicals on the beans to control these diseases.

A limited quantity of seed is available by emailing Pastor-Corrales at pastorm@ba.ars.usda.gov.

ARS is the U.S. Department of Agriculture's chief scientific research agency.


Story Source:

The above story is based on materials provided by USDA / Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA / Agricultural Research Service. "New Rust- And Mosaic-Resistant Beans Released." ScienceDaily. ScienceDaily, 17 January 2005. <www.sciencedaily.com/releases/2005/01/050104111543.htm>.
USDA / Agricultural Research Service. (2005, January 17). New Rust- And Mosaic-Resistant Beans Released. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/2005/01/050104111543.htm
USDA / Agricultural Research Service. "New Rust- And Mosaic-Resistant Beans Released." ScienceDaily. www.sciencedaily.com/releases/2005/01/050104111543.htm (accessed April 19, 2014).

Share This



More Plants & Animals News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Vermont Goat Meat Gives Refugees Taste of Home

Vermont Goat Meat Gives Refugees Taste of Home

AP (Apr. 18, 2014) Dairy farmers and ethnic groups in Vermont are both benefiting from a unique collaborative effort that's feeding a growing need for fresh and affordable goat meat. (April 18) Video provided by AP
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com
First Ever 'Female Penis' Discovered In Animal Kingdom

First Ever 'Female Penis' Discovered In Animal Kingdom

Newsy (Apr. 18, 2014) Not only are these newly discovered bugs' sex organs reversed, but they also mate for up to 70 hours. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins