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Efficient CRISPR/Cas9-Mediated Gene Editing in Arabidopsis thaliana and Inheritance of Modified Genes in the T2 and T3 Generations

Journal Article · · PLoS ONE
 [1];  [2];  [3]
  1. Univ. of Nebraska, Lincoln, NE (United States); Univ. of Nebraska, Lincoln, NE (United States)
  2. Iowa State Univ., Ames, IA (United States)
  3. Univ. of Nebraska, Lincoln, NE (United States)
The newly developed CRISPR/Cas9 system for targeted gene knockout or editing has recently been shown to function in plants in both transient expression systems as well as in primary T1 transgenic plants. However, stable transmission of genes modified by the Cas9/single guide RNA (sgRNA) system to the T2 generation and beyond has not been demonstrated. Here we provide extensive data demonstrating the efficiency of Cas9/sgRNA in causing modification of a chromosomally integrated target reporter gene during early development of transgenic Arabidopsis plants and inheritance of the modified gene in T2 and T3 progeny. Efficient conversion of a nonfunctional, out-of-frame GFP gene to a functional GFP gene was confirmed in T1 plants by the observation of green fluorescent signals in leaf tissues as well as the presence of mutagenized DNA sequences at the sgRNA target site within the GFP gene. All GFP-positive T1 transgenic plants and nearly all GFP-negative plants examined contained mutagenized GFP genes. Analyses of 42 individual T2 generation plants derived from 6 different T1 progenitor plants showed that 50% of T2 plants inherited a single T-DNA insert. The efficiency of the Cas9/sgRNA system and stable inheritance of edited genes point to the promise of this system for facile editing of plant genes.
Research Organization:
Univ. of California, San Diego, CA (United States); Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0001052; EE0003373
OSTI ID:
1904806
Journal Information:
PLoS ONE, Journal Name: PLoS ONE Journal Issue: 6 Vol. 9; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (21)

Generation of inheritable and “transgene clean” targeted genome-modified rice in later generations using the CRISPR/Cas9 system journal June 2015
A high-efficiency CRISPR/Cas9 system for targeted mutagenesis in Cotton (Gossypium hirsutum L.) journal March 2017
Now for the hard ones: is there a limit on CRISPR genome editing in crops? journal January 2019
Precision Targeted Mutagenesis via Cas9 Paired Nickases in Rice journal March 2016
An Agrobacterium -delivered CRISPR/Cas9 system for high-frequency targeted mutagenesis in maize journal September 2016
Significant enhancement of fatty acid composition in seeds of the allohexaploid, Camelina sativa , using CRISPR/Cas9 gene editing journal January 2017
Establishment of a tobacco BY2 cell line devoid of plant-specific xylose and fucose as a platform for the production of biotherapeutic proteins journal March 2017
CRISPR/Cas9-mediated efficient targeted mutagenesis in grape in the first generation journal November 2017
Efficient genome editing of wild strawberry genes, vector development and validation journal April 2018
The Power of CRISPR-Cas9-Induced Genome Editing to Speed Up Plant Breeding journal January 2016
A CRISPR/Cas9 toolkit for multiplex genome editing in plants journal November 2014
Egg cell-specific promoter-controlled CRISPR/Cas9 efficiently generates homozygous mutants for multiple target genes in Arabidopsis in a single generation journal July 2015
A screening method to identify efficient sgRNAs in Arabidopsis, used in conjunction with cell-specific lignin reduction journal May 2019
Endogenous Type I CRISPR-Cas: From Foreign DNA Defense to Prokaryotic Engineering journal March 2020
Targeting Non-Coding RNAs in Plants with the CRISPR-Cas Technology is a Challenge yet Worth Accepting journal November 2015
From Genetics to Functional Genomics: Improvement in Drought Signaling and Tolerance in Wheat journal November 2015
The CRISPR/Cas Genome-Editing Tool: Application in Improvement of Crops journal April 2016
CRISPR-Cas9: Tool for Qualitative and Quantitative Plant Genome Editing journal November 2016
Genome-Editing Technologies for Enhancing Plant Disease Resistance journal December 2016
An Efficient CRISPR/Cas9 Platform for Rapidly Generating Simultaneous Mutagenesis of Multiple Gene Homoeologs in Allotetraploid Oilseed Rape journal April 2018
CRISPR/Cas9-Mediated Multiplex Genome Editing of the BnWRKY11 and BnWRKY70 Genes in Brassica napus L. journal September 2018

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