Hairy Root Transformation System As a Tool for CRISPR/Cas9-directed Genome Editing in Oilseed Rape ()

Overview

Journal Front Plant Sci

Date 2022 Aug 22

PMID 35991410

Authors

Veronika Jedlickova

Katerina Macova

Marie Stefkova

Jan Butula

Jana Stavenikova

Marek Sedlacek

Helene S Robert

Affiliations

Soon will be listed here.

Abstract

Our study examined the mutation efficiency of the CRISPR/Cas9 method for tryptophan aminotransferase genes involved in the auxin biosynthesis pathway. We made nine CRISPR/Cas9 constructs with various promoters driving the expression of a Cas9 from (SaCas9) or a plant-codon-optimized Cas9 (pcoCas9). We developed a fast and efficient system for evaluating the variety and frequency of mutations caused by each construct using hairy roots. We showed that pcoCas9 is more efficient in mutating the targeted loci than SaCas9 and the presence of the NLS signal enhanced the chance of mutagenesis by 25%. The mutations were studied further in regenerated lines, and we determined the gene expression and heritability of the gene modifications in transgenic plants. Hairy root transformation combined with CRISPR/Cas9-mediated gene editing represents a fast and straightforward system for studying target gene function in the important oilseed crop .

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