4.8 Article

Targeted base editing in rice and tomato using a CRISPR-Cas9 cytidine deaminase fusion

Journal

NATURE BIOTECHNOLOGY
Volume 35, Issue 5, Pages 441-+

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/nbt.3833

Keywords

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Funding

  1. Cabinet Office, Government of Japan
  2. Bio-oriented Technology Research Advancement Institution, NARO
  3. Ministry of Education, Culture, Sports and Technology (MEXT) of Japan
  4. Platform Project for Supporting in Drug Discovery and Life Science Research (Platform for Drug Discovery, Informatics, and Structural Life Science) from the Japan Agency for Medical Research and Development (AMED)
  5. JSPS KAKENHI [26119710, 16K14654]
  6. New Energy and Industrial Technology Development Organization (NEDO)
  7. Grants-in-Aid for Scientific Research [16K07560, 16K14654, 15K18647, 26119710] Funding Source: KAKEN

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We applied a fusion of CRISPR-Cas9 and activation-induced cytidine deaminase (Target-AID) for point mutagenesis at genomic regions specified by single guide RNAs (sgRNAs) in two crop plants. In rice, we induced multiple herbicide-resistance point mutations by multiplexed editing using herbicide selection, while in tomato we generated marker-free plants with homozygous heritable DNA substitutions, demonstrating the feasibility of base editing for crop improvement.

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