Genome analysis in Avena sativa reveals hidden breeding barriers and opportunities for oat improvement
- DOI
- Language of the publication
- English
- Date
- 2022-05-18
- Type
- Article
- Author(s)
- Tinker, Nicholas A.
- Wight, Charlene P.
- Bekele, Wubishet A.
- Yan, Weikai
- Jellen, Eric N.
- Renhuldt, Nikos Tsardakas
- Sirijovski, Nick
- Lux, Thomas
- Spannagl, Manuel
- Mascher, Martin
- Publisher
- Nature Research
Abstract
Oat (Avena sativa L.) is an important and nutritious cereal crop, and there is a growing need to identify genes that contribute to improved oat varieties. Here we utilize a newly sequenced and annotated oat reference genome to locate and characterize quantitative trait loci (QTLs) affecting agronomic and grain-quality traits in five oat populations. We find strong and significant associations between the positions of candidate genes and QTL that affect heading date, as well as those that influence the concentrations of oil and β-glucan in the grain. We examine genome-wide recombination profiles to confirm the presence of a large, unbalanced translocation from chromosome 1 C to 1 A, and a possible inversion on chromosome 7D. Such chromosome rearrangements appear to be common in oat, where they cause pseudo-linkage and recombination suppression, affecting the segregation, localization, and deployment of QTLs in breeding programs.
Subject
- Agriculture
Keywords
- Oats--Breeding,
- Crop improvement,
- Genome analysis
Rights
Pagination
1-11
Peer review
Yes
Open access level
Gold
Identifiers
- ISSN
- 2399-3642
Article
- Journal title
- Communications Biology
- Journal volume
- 5
- Article number
- 474
- Accepted date
- 2022-03-10
- Submitted date
- 2021-09-10
Citation(s)
Tinker, N. A., Wight, C. P., Bekele, W. A., Yan, W., Jellen, E. N., Renhuldt, N. T., Sirijovski, N., Lux, T., Spannagl, M., & Mascher, M. (2022). Genome analysis in Avena sativa reveals hidden breeding barriers and opportunities for oat improvement. Communincations Biology, 5, Article 474. https://doi.org/10.1038/s42003-022-03256-5