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United States Department of Agriculture

Agricultural Research Service

Research Project: OAT SNP DEVELOPMENT AND IDENTIFICATION OF LOCI AFFECTING KEY TRAITS IN NORTH AMERICAN AGRONOMICS AND QUALITY TESTING

Location: Small Grains and Potato Germplasm Research

2012 Annual Report


1a.Objectives (from AD-416):
Conduct a two year multi-location association mapping study to develop marker-trait associations to facilitate the development of new oat varieties with superior agronomics and milling quality.


1b.Approach (from AD-416):
Single row plots for all 685 association lines will be grown in an augmented design. Agronomic traits evaluated prior to harvest will include;.
1)heading date,.
2)plant height,.
3)lodging, and.
4)maturity. Four hundred grams of seed will be harvested and sent to Aberdeen, ID for quality analysis including:.
1)groat percentage,.
2)percentage plump kernels,.
3)1000 kernel weight,.
4)groat plumpness,.
5)groat color, and.
6)percentage broken groats using standardized methods. All data will be collected and analyzed for marker trait associations. Documents Grant with Cornell University.


3.Progress Report:

This is the final project. During the life of the project a total of 685 oat lines were evaluated for heading date, plant height, lodging, and maturity. The experiment was repeated in two years. Data was collected for each of the lines and sent to the CORE database for mapping analysis. In addition, 400 grams of seeds from each line was collected and sent to Aberdeen for milling quality analysis. After analysis, this data may enable plant breeders to more efficiently screen for milling quality in oat. Progress was made on the objective, which fall under National Program 301, Component 2, Crop Informatics, Genomics, and Genetic Analyses. Progress on this project focuses on problem of assessment of agronomic traits of oat lines. Three oat core collections were grown for the second year. The first collection includes 128 core accessions; the second includes 170 winter accession; the third one includes 480 spring collections. A total of 788 collection accessions were evaluated. Plant height and heading date were collected from each line. Date was sent to the database for uploading. Results support Objective 3 in the parent project plan, development of improved oat lines.


Last Modified: 7/24/2014
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