Journal
NATURE BIOTECHNOLOGY
Volume 38, Issue 2, Pages 182-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41587-019-0361-2
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Funding
- Howard Hughes Medical Institute
- Next-Generation BioGreen 21 Program SSAC from the Rural Development Administration, Republic of Korea [PJ0134212019]
- National Research Foundation of Korea - Ministry of Science, ICT and Future Planning [2017R1A4A1015594, 2016R1C1B2015877]
- Agriculture and Food Research Initiative competitive grant from the USDA National Institute of Food and Agriculture [2016-67013-24452]
- National Science Foundation Plant Genome Research Program [IOS-1732253, IOS-1546837]
- National Research Foundation of Korea [2016R1C1B2015877] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- NIFA [2016-67013-24452, 810723] Funding Source: Federal RePORTER
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Cultivation of crops in urban environments might reduce the environmental impact of food production(1-4). However, lack of available land in cities and a need for rapid crop cycling, to yield quickly and continuously, mean that so far only lettuce and related 'leafy green' vegetables are cultivated in urban farms(5). New fruit varieties with architectures and yields suitable for urban farming have proven difficult to breed(1,5). We identified a regulator of tomato stem length (SlER) and devised a trait-stacking strategy to combine mutations for condensed shoots, rapid flowering (SP5G) and precocious growth termination (SP). Application of our strategy using one-step CRISPR-Cas9 genome editing restructured vine-like tomato plants into compact, early yielding plants suitable for urban agriculture. Field data confirmed that yields were maintained, and we demonstrated cultivation in indoor farming systems. Targeting the same stem length regulator alone in groundcherry, another Solanaceae plant, also enabled engineering to a compact stature. Our approach can expand the repertoire of crops for urban agriculture. Compact early fruiting tomato and groundcherry plants suitable for urban farming are produced using genome editing.
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