TY - JOUR
T1 - Global genomic population structure of wild and cultivated oat reveals signatures of chromosome rearrangements
AU - Bekele, Wubishet A.
AU - Avni, Raz
AU - L. Birkett, Clayton
AU - Itaya, Asuka
AU - Wight, Charlene P.
AU - Bellavance, Justin
AU - Brodführer, Sophie
AU - Francisco J. Canales, null
AU - Carlson, Craig H.
AU - Fiebig, Anne
AU - Li, Yongle
AU - Michel, Steve
AU - Nandety, Raja Sekhar
AU - Waring, David J.
AU - Arbelaez, Juan D.
AU - D. Beattie, Aaron
AU - Caffe, Melanie
AU - Blanco, Isabel A. del
AU - Jason D. Fiedler, null
AU - Gupta, Rajeev
AU - Gutierrez, Lucia
AU - Harris, John C.
AU - A. Harrison, Stephen
AU - Matthias H. Herrmann, null
AU - Yung-Fen Huang, null
AU - Sanchez, Julio Isidro y
AU - Michael S. McMullen, null
AU - Fetch, Jennifer W. Mitchell
AU - Kirby T. Nilsen, null
AU - P. Parkin, Isobel A.
AU - YuanYing Peng, null
AU - Kevin P. Smith, null
AU - Sutton, Tim
AU - Weikai Yan, null
AU - Zwer, Pamela
AU - Diederichsen, Axel
AU - Klos, Kathy Esvelt
AU - Fu, Yong-Bi
AU - Howarth, Catherine J.
AU - Jannink, Jean-Luc
AU - Jellen, Eric N.
AU - Langdon, Tim
AU - Maughan, Peter J.
AU - Paczos-Grzeda, Edyta
AU - Prats, Elena
AU - Taner Z. Sen, null
AU - Martin Mascher, null
AU - Nicholas A. Tinker, null
N1 - Publisher Copyright:
© Crown 2025.
PY - 2025/10/29
Y1 - 2025/10/29
N2 - The genus Avena consists of approximately 30 wild and cultivated oat species. Cultivated oat is an important food crop, yet the broader genetic diversity within the Avena gene pool remains underexplored and underexploited. Here, we characterize over 9000 wild and cultivated hexaploid oat accessions of global origin using genotyping-by-sequencing and explore population structure using multidimensional scaling and population-based clustering methods. We also conduct analyses to reveal chromosome regions associated with local adaptation, sometimes resulting from large-scale chromosome rearrangements. We report four distinct genetic populations within the wild species A. sterilis, a distinct population of cultivated A. byzantina, and multiple populations within cultivated A. sativa. Some chromosome regions associated with local adaptation are also associated with confirmed structural rearrangements on chromosomes 1A, 1C, 3C, 4C, and 7D. This work provides evidence suggesting multiple polyploid origins, multiple domestications, and/or reproductive barriers amongst Avena populations caused by differential chromosome structure.
AB - The genus Avena consists of approximately 30 wild and cultivated oat species. Cultivated oat is an important food crop, yet the broader genetic diversity within the Avena gene pool remains underexplored and underexploited. Here, we characterize over 9000 wild and cultivated hexaploid oat accessions of global origin using genotyping-by-sequencing and explore population structure using multidimensional scaling and population-based clustering methods. We also conduct analyses to reveal chromosome regions associated with local adaptation, sometimes resulting from large-scale chromosome rearrangements. We report four distinct genetic populations within the wild species A. sterilis, a distinct population of cultivated A. byzantina, and multiple populations within cultivated A. sativa. Some chromosome regions associated with local adaptation are also associated with confirmed structural rearrangements on chromosomes 1A, 1C, 3C, 4C, and 7D. This work provides evidence suggesting multiple polyploid origins, multiple domestications, and/or reproductive barriers amongst Avena populations caused by differential chromosome structure.
UR - https://www.scopus.com/pages/publications/105020242535
UR - https://zenodo.org/records/14976680
UR - https://zenodo.org/records/14889743
U2 - 10.1038/s41467-025-57895-3
DO - 10.1038/s41467-025-57895-3
M3 - Article
C2 - 41162368
SN - 2041-1723
VL - 16
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 9486
ER -