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Eastern Regional Small Grains Genotyping Laboratory
Raleigh, North Carolina
Dr. Gina Brown-Guedira, Research Geneticist 
Applying Genomics for Improvement of Small Grains 

Gina Brown-Guedira
919-513-2174 *NEW

USDA-ARS               Plant Science Research Campus Box 7825 *NEW Raleigh, NC 27695

The Eastern Regional Small Grains Genotyping Lab at Raleigh, NC collaborates with small grains breeding programs across the United States.

Small Grains Genotyping Laboratory personnel.

(Address Not For Shipping Samples)

Sample & Protocol Information

Nursery Marker Reports 



Main goal to facilitate the use of DNA markers in genetic improvement of wheat, barley and oats. Specific objectives include identifying new and robust markers associated with agronomic traits and end use quality, creating marker profiles of breeding lines and cultivars, exploiting new alleles from germplasm resources, and applying the most current genomics technologies for gene detection and selection in breeding programs.

The USDA ARS ( provides leadership for small grain improvement to meet national needs in crop improvement. Current regional ARS laboratories characterize germplasm, improve end-use quality, and improve resistance to rusts, smuts, blights and insect pests of wheat, barley and oats.

The amount of molecular information for small grains has dramatically increased with results generated from wheat and barley genome projects and the development of improved technologies in plant genomics research. A gap exists between the discovery of molecular information and the use of that information in practical wheat, barley and oat improvement programs. As markets move away from a commodity basis toward a value-defined end-product basis, plant breeders must equip themselves with gene-specific markers that give them rapid access to traits of value.

The function of the four regional genotyping labs is to bridge the gap and to work closely with breeders and mappers to enhance valuable traits in all production areas.


In 2001 the US Department of Agriculture – Agriculture Research Service established four regional small grains genotyping labs in the US. These regional labs were formed through the strong support from small grains stakeholders, local and regional farmers, and breeders throughout the US.

The small grain crops that the four regional genotyping centers focus on include wheat, barley and oat. To know more about us (Genotyping Labs), where we are located, who are we collaborating with, and what type of genotyping projects each of the genotyping labs are involved with, please visit their relevant website.