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 research supports objective 1 of the parent project. Over the past 48 years world-wide oat production has declined 58%, while production of crops like corn and soybean have drastically increased. Research groups in North America actively working on oat have also declined from 28 (1998) to 11 (2008). The Collaborative Oat Research Enterprise was recently established by the USDA ARS in Aberdeen, ID as an international scientific collaboration to reverse these trends. As part of the project, ARS Aberdeen enlisted the help of the Purdue University breeding program to evaluate 685 oat lines for Barley Yellow Dwarf Virus (BYDV). Over the last year (2010 – 2011), field evaluations have yielded key information enabling the development of genetic “signpost” for resistance to BYDV. To date, three signpost have been developed and are being used by North American breeding programs as a genetic “GPS” to expedite the development of oat varieties with BYDV resistance. Monitoring of the project is accomplished via site visits, phone conversations, e-mail and written reports.