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Synthetic biology (Oxford, England)
2022;7 (1): ysac031.

Editing using the CRISPR-Cas9 system.

Sra-Yh Shih, Uffe Hasbro Mortensen, Fang-Rong Chang, HsinYuan Tsai
Author Information
  1. Sra-Yh Shih: Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung City, Taiwan.
  2. Uffe Hasbro Mortensen: DTU Bioengineering, Technical University of Denmark, Lyngby, Denmark.
  3. Fang-Rong Chang: Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung City, Taiwan.
  4. HsinYuan Tsai: Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung City, Taiwan. ORCID
PMID: 36582448 DOI: 10.1093/synbio/ysac031

Abstract

CRISPR-Cas9 technology has been utilized in different organisms for targeted mutagenesis, offering a fast, precise and cheap approach to speed up molecular breeding and study of gene function. Until now, many researchers have established the demonstration of applying the CRISPR/Cas9 system to various fungal model species. However, there are very few guidelines available for CRISPR/Cas9 genome editing in . In this study, we present CRISPR/Cas9 genome editing in . To optimize the guide ribonucleic acid (gRNA) expression, we constructed a modified single-guide ribonucleic acid (sgRNA)/Cas9 expression plasmid. By co-transforming an sgRNA/Cas9 expression plasmid along with maker-free donor deoxyribonucleic acid (DNA), we precisely disrupted the and genes, respectively, and created targeted gene insertion ( gene) and iterative gene editing in ( and genes). Furthermore, co-delivering two sgRNA/Cas9 expression plasmids resulted in precise gene deletion (with donor DNA) in the and genes, respectively, and efficient removal of the DNA between the two gRNA targeting sites (no donor DNA) in the gene. Our results showed that the CRISPR/Cas9 system is a powerful tool for precise genome editing in , and our approach provides a great potential for manipulating targeted genes and contributions to gene functional study of .

Keywords

Aspergillus terreus CRISPR-Cas9 genome-editing technology marker-free donor DNA

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