Journal
NATURE BIOTECHNOLOGY
Volume 38, Issue 1, Pages 84-+Publisher
NATURE RESEARCH
DOI: 10.1038/s41587-019-0337-2
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Funding
- NIGMS NIH HHS [T32 GM008347] Funding Source: Medline
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Plant gene editing is typically performed by delivering reagents such as Cas9 and single guide RNAs to explants in culture. Edited cells are then induced to differentiate into whole plants by exposure to various hormones. The creation of edited plants through tissue culture is often inefficient, time-consuming, works for only limited species and genotypes, and causes unintended changes to the genome and epigenome. Here we report two methods to generate gene-edited dicotyledonous plants through de novo meristem induction. Developmental regulators and gene-editing reagents are delivered to somatic cells of whole plants. This induces meristems that produce shoots with targeted DNA modifications, and gene edits are transmitted to the next generation. The de novo induction of gene-edited meristems sidesteps the need for tissue culture and promises to overcome a bottleneck in plant gene editing. Methods to induce edited somatic plant cells to form meristems circumvent tissue culture and enable genome editing of a wider set of plant species.
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