Abstract
Genome editing technology is an emerging technology that has been developing rapidly for targeted modification of genomic DNA in recent years. It is divided into four categories, to be specific, meganucleases (MN), zinc finger nucleases (ZFN), transcription activator-like effector nucleases (TALEN), and clusterd regularly interspaced short palindromic repeats associated Cas system (CRISPR/Cas). At present, genome editing technology has been widely used in the basic research of model plants or crops, and some crop varieties developed with these technologies have been licensed for commercial use. It is expected that the gene-edited crops will develop rapidly worldwide in the coming few years. By comprehensively utilizing methods of qualitative research and quantitative literature analysis, this paper conducts a thorough analysis on the current R&D situation, major countries, key institutions, and their research focuses. These research results can provide significant references for China to make overall arrangements of the R&D initiatives and relevant policy making.
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