Genome engineering of crops with designer nucleases

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66 Scopus citations


Recent advances in the field of genome engineering indicate that it will soon be routine to make site-directed modifications to the genomes of crop species, including targeted mutations, gene insertions, and gene replacements. This new technology will be used to help elucidate gene function and develop new and valuable traits. Key to enabling site-directed genome modifications are sequence-specific nucleases that generate targeted double-stranded DNA breaks in genes of interest. To date, three different sequence-specific nuclease systems have been used in crop plants: zinc finger nucleases, transcription activator-like effector nucleases (TALENs), and LAGLIDADG homing endonucleases, also termed "meganucleases." In this review, we report on the current state of genome engineering in crop plants, comparing the different nuclease and gene delivery systems. We also consider some of the limitations that nucleasemediated crop improvement technologies may encounter.

Original languageEnglish (US)
Pages (from-to)42-50
Number of pages9
JournalPlant Genome
Issue number2
StatePublished - 2012


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