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 October 20, 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 October 20, 2014).

Share This



More Plants & Animals News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Rare Lion Cubs Make Debut at Belgrade Zoo

Raw: Rare Lion Cubs Make Debut at Belgrade Zoo

AP (Oct. 17, 2014) Two white lion cubs were born in Belgrade zoo three weeks ago. White lions are a rare mutation of a species found in South Africa and some cultures consider them divine. (Oct. 17) Video provided by AP
Powered by NewsLook.com
The Best Foods To Boost Your Mood

The Best Foods To Boost Your Mood

Buzz60 (Oct. 17, 2014) Feeling down? Reach for the refrigerator, not the medicine cabinet! TC Newman (@PurpleTCNewman) shares some of the best foods to boost your mood. Video provided by Buzz60
Powered by NewsLook.com
Sweet Times for Hard Cider Makers

Sweet Times for Hard Cider Makers

AP (Oct. 16, 2014) With hard cider making a hardcore comeback across the country, craft makers are trying to keep up with demand and apple growers are tapping a juicy new revenue stream. (Oct. 16) Video provided by AP
Powered by NewsLook.com
Meet Garfi the Angry Cat

Meet Garfi the Angry Cat

Buzz60 (Oct. 16, 2014) Garfi is one frowny, feisty feline - downright angry! Ko Im (@koimtv) introduces us to the latest animal celebrity taking over the Internet. You can follow more of Garfi's adventures on Twitter (@MeetGarfi) and Facebook (Garfi). Video provided by Buzz60
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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