reference : Speed breeding is a powerful tool to accelerate crop research and breeding

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Bibliographic fields
reftype Journal Article
Abstract The growing human population and a changing environment have raised significant concern for global food security, with the current improvement rate of several important crops inadequate to meet future demand 1 . This slow improvement rate is attributed partly to the long generation times of crop plants. Here, we present a method called ‘speed breeding’, which greatly shortens generation time and accelerates breeding and research programmes. Speed breeding can be used to achieve up to 6 generations per year for spring wheat (Triticum aestivum), durum wheat (T. durum), barley (Hordeum vulgare), chickpea (Cicer arietinum) and pea (Pisum sativum), and 4 generations for canola (Brassica napus), instead of 2–3 under normal glasshouse conditions. We demonstrate that speed breeding in fully enclosed, controlled-environment growth chambers can accelerate plant development for research purposes, including phenotyping of adult plant traits, mutant studies and transformation. The use of supplemental lighting in a glasshouse environment allows rapid generation cycling through single seed descent (SSD) and potential for adaptation to larger-scale crop improvement programs. Cost saving through light-emitting diode (LED) supplemental lighting is also outlined. We envisage great potential for integrating speed breeding with other modern crop breeding technologies, including high-throughput genotyping, genome editing and genomic selection, accelerating the rate of crop improvement.
Author Watson, Amy; Ghosh, Sreya; Williams, Matthew J.; Cuddy, William S.; Simmonds, James; Rey, María-Dolores; Asyraf Md Hatta, M.; Hinchliffe, Alison; Steed, Andrew; Reynolds, Daniel; Adamski, Nikolai M.; Breakspear, Andy; Korolev, Andrey; Rayner, Tracey; Dixon, Laura E.; Riaz, Adnan; Martin, William; Ryan, Merrill; Edwards, David; Batley, Jacqueline; Raman, Harsh; Carter, Jeremy; Rogers, Christian; Domoney, Claire; Moore, Graham; Harwood, Wendy; Nicholson, Paul; Dieters, Mark J.; DeLacy, Ian H.; Zhou, Ji; Uauy, Cristobal; Boden, Scott A.; Park, Robert F.; Wulff, Brande B. H.; Hickey, Lee T.
DOI 10.1038/s41477-017-0083-8
Date 2018/01/01
ISSN 2055-0278
Issue 1
Journal Nature Plants
Pages 23-29
Title Speed breeding is a powerful tool to accelerate crop research and breeding
Volume 4
Year 2018
Bibliographic identifiers
_record_number 25533
_uuid 2f97778b-5e02-44b5-b4a5-14492fd37ec8