Establishing Programmable CRISPR/Cas13b-Mediated Knockdown System in Rice
CRISPR-Cas endonucleases mediate prokaryotic adaptive immunity by targeting foreign nucleic acids. CRISPR/Cas13b is a class 2 type VI-B ribonuclease that targets and cleaves single-stranded RNA. It exhibits higher RNA interference activity than Cas13a and Cas13c and causes fewer collateral effects t...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
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| Series: | Rice Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1672630825000162 |
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| Summary: | CRISPR-Cas endonucleases mediate prokaryotic adaptive immunity by targeting foreign nucleic acids. CRISPR/Cas13b is a class 2 type VI-B ribonuclease that targets and cleaves single-stranded RNA. It exhibits higher RNA interference activity than Cas13a and Cas13c and causes fewer collateral effects than RxCas13d in mammalian cells. However, a programmable CRISPR/Cas13b-mediated RNA interference system for endogenous transcripts in rice has not yet been established. Here, we developed a CRISPR/Cas13b-mediated system to target endogenous transcripts in rice. Our CRISPR/Cas13b system could inhibit multiple endogenous mRNAs simultaneously. In addition, this system efficiently repressed endogenous long noncoding RNAs with more than 50% inhibition in stable transgenic plants. Furthermore, we found only weak collateral effects of the CRISPR/Cas13b-mediated system at the transcriptome-wide level, and no difference in the agronomic traits of stable transgenic rice in the field. We present a programmable CRISPR/Cas13b-mediated knockdown system for rice, offering a potential biotechnological tool for functional genomics and crop improvement. |
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| ISSN: | 1672-6308 |