Roadmap for Accelerated Domestication of an Emerging Perennial Grain Crop

Shifting the life cycle of grain crops from annual to perennial would usher in a new era of agriculture that is more environmentally friendly, resilient to climate change, and capable of soil carbon sequestration. Despite decades of work, transforming the annual grain crop wheat (Triticum aestivum)...

Full description

Saved in:
Bibliographic Details
Published in:Trends in plant science 2020-06, Vol.25 (6), p.525-537
Main Authors: DeHaan, Lee, Larson, Steve, López-Marqués, Rosa L., Wenkel, Stephan, Gao, Caixia, Palmgren, Michael
Format: Article
Language:English
Subjects:
accelerated domestication
Carbon sequestration
Cereal crops
Climate change
Crops
Domestication
genome editing
Genomes
Grain
Grain crops
Life cycles
Nucleotide sequence
Perennial crops
perennial grain crops
Plant breeding
Triticum aestivum
Wheat
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Shifting the life cycle of grain crops from annual to perennial would usher in a new era of agriculture that is more environmentally friendly, resilient to climate change, and capable of soil carbon sequestration. Despite decades of work, transforming the annual grain crop wheat (Triticum aestivum) into a perennial has yet to be realized. Direct domestication of wild perennial grass relatives of wheat, such as Thinopyrum intermedium, is an alternative approach. Here we highlight protein coding sequences in the recently released T. intermedium genome sequence that may be orthologous to domestication genes identified in annual grain crops. Their presence suggests a roadmap for the accelerated domestication of this plant using new breeding technologies. Current grain crops are annuals that must be sown every year, giving their root systems little time to develop during the growing season.A perennial grain crop with a long-lived extensive root system would improve soil quality, store carbon belowground, and utilize water and minerals more efficiently.Domestication genes of the annual grass wheat are highly conserved in the perennial intermediate wheatgrass (Thinopyrum intermedium), providing an opportunity for accelerated domestication of a perennial grain using a mutagenesis approach.
ISSN:1360-1385
1878-4372
DOI:10.1016/j.tplants.2020.02.004