Abstract
Sugarcane crop constitutes one of the most vital sources of sugar and bioenergy globally; however, higher level of polyploidy makes its genome editing an intricate task. Recently, genome editing has become easier with CRISPR/Cas9 system that uses Cas9 to target sequence-specific regions and introduce double-strand breaks into the target region. This technique has been successfully employed to develop new varieties of sugarcane having desired phenotypic and physiological traits. Several genes can be fused with the CRISPR/Cas9 system leading to successful metabolic engineering and biological improvement for ensuring sustainable enhancement in sugarcane production. This simple RNA-guided genome editing technique has become a revolutionary tool and innovative application in biology that might be effectively employed for inducing specified genomic modifications in plant tissues. This review attempts to synthesize fundamentals of genome editing techniques with an ultimate aim to find out opportunities and challenges of sugarcane genome editing. It also tends to summarize the advances and achievements of gene editing via CRISPR-based genome editing technique for numerous field crops. Lastly, the enormous potential of CRISPR/Cas9 for gene editing in sugarcane, major challenges and future perspectives have been objectively elaborated.
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