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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Cereal Crops Improvement Research » Research » Publications at this Location » Publication #410590
Research Project: Improvement of Disease and Pest Resistance in Barley, Durum, Oat, and Wheat Using Genetics and Genomics

Location: Cereal Crops Improvement Research

Title: A global assembly of landrace and founder spring oat (Avena sativa L.) accessions is a discovery resource for adaptive variation, association mapping, and trait deployment

Author
item RAHMAN, AFRINA - North Dakota State University
item Carlson, Craig
item Esvelt Klos, Kathy
item MOHAJERI NARAGHI, SEPEHR - North Dakota State University
item MCMULLEN, MICHAEL - North Dakota State University
item AJAYI-MOSES, OLUWATAYO - North Dakota State University
item Nandety, Raja Sekhar
item Fiedler, Jason
item Bockelman, Harold

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 11/7/2023
Publication Date: 1/7/2024
Citation: Rahman, A., Carlson, C.H., Esvelt Klos, K.L., Mohajeri Naraghi, S., Mcmullen, M.S., Ajayi-Moses, O., Nandety, R., Fiedler, J.D., Bockelman, H.E. 2024. A global assembly of landrace and founder spring oat (Avena sativa L.) accessions is a discovery resource for adaptive variation, association mapping, and trait deployment. Meeting Abstract. Poster No. PE0532.

Interpretive Summary:

Technical Abstract: Crop adaptation to climate change will require genetic resources that are different from those currently deployed. The rapid global shift to both a warmer climate and unpredictable climactic events must be considered in developing new breeding populations for local environments. Oats (Avena spp.) are annual grasses that represent a diversity of species and ploidy levels. The most notable, spring oat (A. sativa L.), is a heart-healthy and gluten-free cereal crop that is grown worldwide as a source of food, feed, and cosmetics products. In the past decade, global oat production has been increasingly challenged by environmental changes and its economic value has suffered due to competition with other high-value grain crops. Although genomic resources are growing for spring oat, there is limited information about the landraces that served as founders to modern varieties. To improve knowledge of adaptive genetic variation and phenotypic diversity of spring oat founders, a set of 761 global A. sativa landrace accessions in the National Small Grains Collection was investigated, herein dubbed the Oat Landrace Diversity (OLD) Panel. High-depth genotyping-by-sequencing was conducted to assess genetic diversity, perform genome-wide association mapping for quantifying allelic associations with bioclimatic and soil properties, and to provide insight into whether quantitative trait loci identified in the OLD Panel are still important in elite cultivar populations. Finally, we highlight the significance of leveraging genetic variation attributable to environmental adaptation to reinforce plant breeding programs for developing cultivars that are better suited to the changing environment.