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Current Status of New Plant Breeding Technologies and Crop Development

In recent years, new plant breeding technologies (NPBT) have had enormous effects on breeding and the agricultural industry. In particular, genome editing technology, including site-directed nuclease technologies, has progressed dramatically since the first-generation Zinc finger nucleases to the third-generation clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 (CRISPR/Cas9). CRISPR/Cas9 technology has yielded a revolutionary breakthrough in the accurate, efficient, and user-friendly genome editing of eukaryotes. Several methods for basic research and applications, such as knock-out, base editing, gene targeting, and transcriptional activation or repression have been derived from CRISPR/Cas9 technology. Herein, we will describe the current progress in NPBTs and also summarize the crops developed by NPBTs. After analyzing the current status of NPBTs and crop development, we have proposed potential strategies for crop development using NPBTs.