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Genome Editing of Bread Wheat Using Biolistic Delivery of CRISPR/Cas9 in vitro Transcripts or Ribonucleoproteins
Zhen Liang, Kunling Chen, Yi Zhang, Jinxing Liu, Kangquan Yin, Jin-Long Qiu & Caixia Gao
Nature Protocols
Abstract
In recent years, CRISPR/Cas9 has emerged as a powerful tool for improving crop traits. Conventional plant genome editing mainly relies on plasmid-carrying cassettes delivered by Agrobacterium or particle bombardment. Here, we describe DNA-free editing of bread wheat by delivering in vitro transcripts (IVTs) or ribonucleoprotein complexes (RNPs) of CRISPR/Cas9 by particle bombardment. This protocol serves as an extension of our previously published protocol on genome editing in bread wheat using CRISPR/Cas9 plasmids delivered by particle bombardment. The methods we describe not only eliminate random integration of CRISPR/Cas9 into genomic DNA, but also reduce off-target effects. In this protocol extension article, we present detailed protocols for preparation of IVTs and RNPs; validation by PCR/restriction enzyme (RE) and next-generation sequencing; delivery by biolistics; and recovery of mutants and identification of mutants by pooling methods and Sanger sequencing. To use these protocols, researchers should have basic skills and experience in molecular biology and biolistic transformation. By using these protocols, plants edited without the use of any foreign DNA can be generated and identified within 9–11 weeks.
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论文编号: |
DOI:10.1038/nprot.2017.145 |
论文题目: |
Genome Editing of Bread Wheat Using Biolistic Delivery of CRISPR/Cas9 in vitro Transcripts or Ribonucleoproteins |
英文论文题目: |
Genome Editing of Bread Wheat Using Biolistic Delivery of CRISPR/Cas9 in vitro Transcripts or Ribonucleoproteins |
第一作者: |
Zhen Liang, Kunling Chen, Yi Zhang, Jinxing Liu, Kangquan Yin, Jin-Long Qiu & Caixia Gao |
英文第一作者: |
Zhen Liang, Kunling Chen, Yi Zhang, Jinxing Liu, Kangquan Yin, Jin-Long Qiu & Caixia Gao |
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2018-02-02 |
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摘要: |
In recent years, CRISPR/Cas9 has emerged as a powerful tool for improving crop traits. Conventional plant genome editing mainly relies on plasmid-carrying cassettes delivered by Agrobacterium or particle bombardment. Here, we describe DNA-free editing of bread wheat by delivering in vitro transcripts (IVTs) or ribonucleoprotein complexes (RNPs) of CRISPR/Cas9 by particle bombardment. This protocol serves as an extension of our previously published protocol on genome editing in bread wheat using CRISPR/Cas9 plasmids delivered by particle bombardment. The methods we describe not only eliminate random integration of CRISPR/Cas9 into genomic DNA, but also reduce off-target effects. In this protocol extension article, we present detailed protocols for preparation of IVTs and RNPs; validation by PCR/restriction enzyme (RE) and next-generation sequencing; delivery by biolistics; and recovery of mutants and identification of mutants by pooling methods and Sanger sequencing. To use these protocols, researchers should have basic skills and experience in molecular biology and biolistic transformation. By using these protocols, plants edited without the use of any foreign DNA can be generated and identified within 9–11 weeks. |
英文摘要: |
In recent years, CRISPR/Cas9 has emerged as a powerful tool for improving crop traits. Conventional plant genome editing mainly relies on plasmid-carrying cassettes delivered by Agrobacterium or particle bombardment. Here, we describe DNA-free editing of bread wheat by delivering in vitro transcripts (IVTs) or ribonucleoprotein complexes (RNPs) of CRISPR/Cas9 by particle bombardment. This protocol serves as an extension of our previously published protocol on genome editing in bread wheat using CRISPR/Cas9 plasmids delivered by particle bombardment. The methods we describe not only eliminate random integration of CRISPR/Cas9 into genomic DNA, but also reduce off-target effects. In this protocol extension article, we present detailed protocols for preparation of IVTs and RNPs; validation by PCR/restriction enzyme (RE) and next-generation sequencing; delivery by biolistics; and recovery of mutants and identification of mutants by pooling methods and Sanger sequencing. To use these protocols, researchers should have basic skills and experience in molecular biology and biolistic transformation. By using these protocols, plants edited without the use of any foreign DNA can be generated and identified within 9–11 weeks. |
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Nature Protocols |
英文刊物名称: |
Nature Protocols |
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Zhen Liang, Kunling Chen, Yi Zhang, Jinxing Liu, Kangquan Yin, Jin-Long Qiu & Caixia Gao. Genome Editing of Bread Wheat Using Biolistic Delivery of CRISPR/Cas9 in vitro Transcripts or Ribonucleoproteins. Nature Protocols. DOI:10.1038/nprot.2017.145 |
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