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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.*

Genome analysis in Avena sativa reveals hidden breeding barriers and opportunities for oat improvement.

Comm. Biol. 5:474 (2022)
Publ. Version/Full Text Research data Research data DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
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.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
ISSN (print) / ISBN 2399-3642
e-ISSN 2399-3642
Quellenangaben Volume: 5, Issue: 1, Pages: , Article Number: 474 Supplement: ,
Publisher Springer
Publishing Place London
Non-patent literature Publications
Reviewing status Peer reviewed
Grants Agriculture and Agri-Food Canada
Agricultural Research Service
Tina Wambach
Molecular Technologies Centre
Institut de biologie intégrative et des systems