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Chromosome-scale genome assembly provides insights into rye biology, evolution and agronomic potential


Rabanus-Wallace, M Timothy; Hackauf, Bernd; Mascher, Martin; Lux, Thomas; Wicker, Thomas; Gundlach, Heidrun; Baez, Mariana; Houben, Andreas; et al; Praz, Coraline R; Keller, Beat (2021). Chromosome-scale genome assembly provides insights into rye biology, evolution and agronomic potential. Nature Genetics, 53(4):564-573.

Abstract

Rye (Secale cerealeL.) is an exceptionally climate-resilient cereal crop, used extensively to produce improved wheat varieties via introgressive hybridization and possessing the entire repertoire of genes necessary to enable hybrid breeding. Rye is allogamous and only recently domesticated, thus giving cultivated ryes access to a diverse and exploitable wild gene pool. To further enhance the agronomic potential of rye, we produced a chromosome-scale annotated assembly of the 7.9-gigabase rye genome and extensively validated its quality by using a suite of molecular genetic resources. We demonstrate applications of this resource with a broad range of investigations. We present findings on cultivated rye’s incomplete genetic isolation from wild relatives, mechanisms of genome structural evolution, pathogen resistance, low-temperature tolerance, fertility control systems for hybrid breeding and the yield benefits of rye–wheat introgressions.

Abstract

Rye (Secale cerealeL.) is an exceptionally climate-resilient cereal crop, used extensively to produce improved wheat varieties via introgressive hybridization and possessing the entire repertoire of genes necessary to enable hybrid breeding. Rye is allogamous and only recently domesticated, thus giving cultivated ryes access to a diverse and exploitable wild gene pool. To further enhance the agronomic potential of rye, we produced a chromosome-scale annotated assembly of the 7.9-gigabase rye genome and extensively validated its quality by using a suite of molecular genetic resources. We demonstrate applications of this resource with a broad range of investigations. We present findings on cultivated rye’s incomplete genetic isolation from wild relatives, mechanisms of genome structural evolution, pathogen resistance, low-temperature tolerance, fertility control systems for hybrid breeding and the yield benefits of rye–wheat introgressions.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Plant and Microbial Biology
07 Faculty of Science > Zurich-Basel Plant Science Center
Dewey Decimal Classification:580 Plants (Botany)
Scopus Subject Areas:Life Sciences > Genetics
Uncontrolled Keywords:Genetics
Language:English
Date:1 April 2021
Deposited On:18 May 2021 13:55
Last Modified:26 May 2024 01:39
Publisher:Nature Publishing Group
ISSN:1061-4036
OA Status:Hybrid
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:https://doi.org/10.1038/s41588-021-00807-0
PubMed ID:33737754
  • Content: Published Version
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)