Featured Research

from universities, journals, and other organizations

Soy Scientists To Fill 'Library' With Genetic Bookmarks

Date:
March 28, 2008
Source:
US Department of Agriculture
Summary:
Soybean varieties with improved yield, pest resistance, protein and oil quality and quantity and other traits are among the benefits expected of a new project in which Agricultural Research Service scientists will create a "library" of 50,000 DNA markers called single nucleotide polymorphisms (SNPs).

Plant geneticist Perry Cregan compares DNA fingerprints of soybean varieties.
Credit: Photo by Keith Weller

Soybean varieties with improved yield, pest resistance, protein and oil quality and quantity and other traits are among the benefits expected of a new project in which Agricultural Research Service (ARS) scientists will create a "library" of 50,000 DNA markers called single nucleotide polymorphisms (SNPs).

Geneticists David Hyten and Perry Cregan will "stock" the library as part of their ongoing studies with SNP DNA markers at ARS' Soybean Genomics and Improvement Research Unit in Beltsville, Md. The United Soybean Board (USB) is funding the $2.9 million, three-year project from the organization's soybean checkoff program.

The library's completion will provide soybean researchers and breeders with a valuable resource to use in characterizing the genetic variation available for soybean improvement. For example, they'll be able to determine the position and characteristics of alleles, or alternate forms of genes, within the oilseed crop's 20 chromosomes.

A goal is to genotype nearly 20,000 lines, called accessions, in the USDA soybean germplasm collection, which ARS curator and collaborator Randall Nelson maintains on the University of Illinois campus at Urbana-Champaign. The library's anticipated 50,000 SNPs will help researchers to take the next step in applying the soybean whole genome-sequence data—released by the U.S. Department of Energy's Joint Genome Institute—to make soybean breeding more efficient and precise. Of particular interest is using SNP marker technology to rapidly identify plants that carry important traits like high-quality oil and resistance to pests including soybean cyst nematodes.

The SNPs themselves are small changes, or variations, in the sequence of four biochemical "letters"—A (adenine), C (cytosine), T (thymine) and G (guanine)—that make up an organism's DNA "alphabet." Cregan and Hyten, together with their ARS and university colleagues, have so far identified 43,000 SNPs in soybean and mapped the genome locations of 15,000 of them.

ARS is the U.S. Department of Agriculture's chief scientific research agency. The USB is made up of 68 farmer-directors who oversee investments of the soybean checkoff on behalf of all U.S. soybean farmers.


Story Source:

The above story is based on materials provided by US Department of Agriculture. Note: Materials may be edited for content and length.


Cite This Page:

US Department of Agriculture. "Soy Scientists To Fill 'Library' With Genetic Bookmarks." ScienceDaily. ScienceDaily, 28 March 2008. <www.sciencedaily.com/releases/2008/03/080321125654.htm>.
US Department of Agriculture. (2008, March 28). Soy Scientists To Fill 'Library' With Genetic Bookmarks. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2008/03/080321125654.htm
US Department of Agriculture. "Soy Scientists To Fill 'Library' With Genetic Bookmarks." ScienceDaily. www.sciencedaily.com/releases/2008/03/080321125654.htm (accessed July 31, 2014).

Share This




More Plants & Animals News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. 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