학술논문
Chromosome-scale genome assembly provides insights into rye biology, evolution and agronomic potential
Document Type
Report
Author
Source
Nature Genetics. April 2021, Vol. 53 Issue 4, p564, 10 p.
Subject
Language
English
ISSN
1061-4036
Abstract
Author(s): M. Timothy Rabanus-Wallace [sup.1] , Bernd Hackauf [sup.2] , Martin Mascher [sup.1] , Thomas Lux [sup.3] , Thomas Wicker [sup.4] , Heidrun Gundlach [sup.3] , Mariana Baez [sup.5] , [...]
Rye (Secale cereale L.) 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. A chromosome-scale genome assembly of rye inbred line 'Lo7' provides insights into its incomplete genetic isolation from wild relatives, mechanisms of genome structural evolution and the yield benefits of rye-wheat introgressions.
Rye (Secale cereale L.) 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. A chromosome-scale genome assembly of rye inbred line 'Lo7' provides insights into its incomplete genetic isolation from wild relatives, mechanisms of genome structural evolution and the yield benefits of rye-wheat introgressions.