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)...

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Vydáno v:Trends in plant science Ročník 25; číslo 6; s. 525 - 537
Hlavní autoři: DeHaan, Lee, Larson, Steve, López-Marqués, Rosa L., Wenkel, Stephan, Gao, Caixia, Palmgren, Michael
Médium: Journal Article
Jazyk:angličtina
Vydáno: England Elsevier Ltd 01.06.2020
Elsevier BV
Témata:
accelerated domestication
Carbon sequestration
Cereal crops
Climate change
Crops
Domestication
genes
genome editing
Genomes
Grain
Grain crops
Life cycles
Nucleotide sequence
nucleotide sequences
Perennial crops
perennial grain crops
perennial grasses
Plant breeding
Thinopyrum intermedium subsp. intermedium
Triticum aestivum
Wheat
genome editing
perennial grain crops
accelerated domestication
ISSN:1360-1385, 1878-4372, 1878-4372
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Shrnutí: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.
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ISSN:1360-1385
1878-4372
1878-4372
DOI:10.1016/j.tplants.2020.02.004