Genome analysis in Avena sativa reveals hidden breeding barriers and opportunities for oat improvement
(2022) In Communications Biology 5(1).- 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... (More)
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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- author
- Tinker, Nicholas A. ; Wight, Charlene P. ; Bekele, Wubishet A. ; Yan, Weikai ; Jellen, Eric N. ; Renhuldt, Nikos Tsardakas LU ; Sirijovski, Nick LU ; Lux, Thomas ; Spannagl, Manuel and Mascher, Martin
- organization
- publishing date
- 2022-12
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Communications Biology
- volume
- 5
- issue
- 1
- article number
- 474
- publisher
- Nature Publishing Group
- external identifiers
-
- pmid:35585176
- scopus:85130257960
- ISSN
- 2399-3642
- DOI
- 10.1038/s42003-022-03256-5
- language
- English
- LU publication?
- yes
- id
- 064a7e24-596f-4827-8e6e-3725204a4443
- date added to LUP
- 2022-12-29 11:26:21
- date last changed
- 2024-04-18 17:24:06
@article{064a7e24-596f-4827-8e6e-3725204a4443, abstract = {{<p>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.</p>}}, author = {{Tinker, Nicholas A. and Wight, Charlene P. and Bekele, Wubishet A. and Yan, Weikai and Jellen, Eric N. and Renhuldt, Nikos Tsardakas and Sirijovski, Nick and Lux, Thomas and Spannagl, Manuel and Mascher, Martin}}, issn = {{2399-3642}}, language = {{eng}}, number = {{1}}, publisher = {{Nature Publishing Group}}, series = {{Communications Biology}}, title = {{Genome analysis in Avena sativa reveals hidden breeding barriers and opportunities for oat improvement}}, url = {{http://dx.doi.org/10.1038/s42003-022-03256-5}}, doi = {{10.1038/s42003-022-03256-5}}, volume = {{5}}, year = {{2022}}, }