Transposase-assisted target-site integration for efficient plant genome engineering.

Autor: Liu P; Donald Danforth Plant Science Center, St Louis, MO, USA., Panda K; Donald Danforth Plant Science Center, St Louis, MO, USA., Edwards SA; Donald Danforth Plant Science Center, St Louis, MO, USA.; Division of Biological Sciences, University of Missouri, Columbia, MO, USA., Swanson R; Donald Danforth Plant Science Center, St Louis, MO, USA.; Division of Biological Sciences, University of Missouri, Columbia, MO, USA., Yi H; Plant Transformation Facility, Donald Danforth Plant Science Center, St Louis, MO, USA., Pandesha P; Donald Danforth Plant Science Center, St Louis, MO, USA.; Division of Biology and Biomedical Sciences, Washington University, St Louis, MO, USA., Hung YH; Donald Danforth Plant Science Center, St Louis, MO, USA., Klaas G; Donald Danforth Plant Science Center, St Louis, MO, USA., Ye X; Bayer Crop Science, St Louis, MO, USA., Collins MV; University of South Carolina-Aiken, Aiken, SC, USA., Renken KN; University of South Carolina-Aiken, Aiken, SC, USA., Gilbertson LA; Bayer Crop Science, St Louis, MO, USA., Veena V; Plant Transformation Facility, Donald Danforth Plant Science Center, St Louis, MO, USA., Hancock CN; University of South Carolina-Aiken, Aiken, SC, USA., Slotkin RK; Donald Danforth Plant Science Center, St Louis, MO, USA. kslotkin@danforthcenter.org.; Division of Biological Sciences, University of Missouri, Columbia, MO, USA. kslotkin@danforthcenter.org.
Jazyk: angličtina
Zdroj: Nature [Nature] 2024 Jul; Vol. 631 (8021), pp. 593-600. Date of Electronic Publication: 2024 Jun 26.
DOI: 10.1038/s41586-024-07613-8
Abstrakt: The current technologies to place new DNA into specific locations in plant genomes are low frequency and error-prone, and this inefficiency hampers genome-editing approaches to develop improved crops 1,2 . Often considered to be genome 'parasites', transposable elements (TEs) evolved to insert their DNA seamlessly into genomes 3-5 . Eukaryotic TEs select their site of insertion based on preferences for chromatin contexts, which differ for each TE type 6-9 . Here we developed a genome engineering tool that controls the TE insertion site and cargo delivered, taking advantage of the natural ability of the TE to precisely excise and insert into the genome. Inspired by CRISPR-associated transposases that target transposition in a programmable manner in bacteria 10-12 , we fused the rice Pong transposase protein to the Cas9 or Cas12a programmable nucleases. We demonstrated sequence-specific targeted insertion (guided by the CRISPR gRNA) of enhancer elements, an open reading frame and a gene expression cassette into the genome of the model plant Arabidopsis. We then translated this system into soybean-a major global crop in need of targeted insertion technology. We have engineered a TE 'parasite' into a usable and accessible toolkit that enables the sequence-specific targeting of custom DNA into plant genomes.
(© 2024. The Author(s).)
Databáze: MEDLINE
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