Abstract
Modern genome editing tools particularly CRISPR/Cas9 have revolutionized plant genome manipulation for engineering resilience against changing climatic conditions, disease infestation, as well as functional genomic studies. CRISPR-mediated genome editing allows for editing at a single as well as multiple locations in the genome simultaneously, making it an effective tool for polyploid species too. However, still, its applications are limited to the model crops only. Extending it to crop plants will help improve field crops against the changing climates more rapidly and precisely. Here we describe the protocol for editing the genome of a field crop Brassica juncea (mustard), an allotetraploid and important oilseed crop of the Indo-Pak Subcontinent region. This protocol is based on the Agrobacterium-mediated transformation for the delivery of CRISPR components into the plant genome using cotyledon as explants. We elaborate on steps for recovering genome-edited knockouts, for validation of the edits, as well as recovering the transgene-free edited plants through a commonly used segregating approach.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Cheng F, Wu J, Wang X (2014) Genome triplication drove the diversification of Brassica plants. Hortic Res 1:14024
Cheng F, Liang J, Cai C, Cai X et al (2017) Genome sequencing supports a multi-vertex model for Brassiceae species. Curr Opin Plant Biol 36:79–87
Yang Y, Zhu K, Li H et al (2018) Precise editing of CLAVATA genes in Brassica napus L. regulates multilocular silique development. Plant Biotechnol J 16(7):1322–1335
Rahman H, Harwood J, Westlake R (2013) Increasing seed oil content in Brassica species through breeding and biotechnology. Lipid Technol 25(8):182–185
Newkirk R, Classen H, Tyler RT (1997) Nutritional evaluation of low glucosinolate mustard meals (Brassica juncea) in broiler diets. Poult Sci 76(9):1272–1277
Xiong Z, Gaeta RT, Pires JC (2011) Homoeologous shuffling and chromosome compensation maintain genome balance in resynthesized allopolyploid Brassica napus. Proc Natl Acad Sci 108(19):7908–7913
Shan Q, Wang Y, Li J et al (2013) Targeted genome modification of crop plants using a CRISPR-Cas system. Nat Biotechnol 31(8):686–688
Mali P, Yang L, Esvelt KM et al (2013a) RNA-guided human genome engineering via Cas9. Science 339(6121):823–826
Mali P, Esvelt KM, Church GM (2013) Cas9 as a versatile tool for engineering biology. Nat Methods 10(10):957–963
Sternberg SH, Redding S, Jinek M et al (2014) DNA interrogation by the CRISPR RNA-guided endonuclease Cas9. Nature 507(7490):62–67
Hsu PD, Scott DA, Weinstein JA et al (2013) DNA targeting specificity of RNA-guided Cas9 nucleases. Nat Biotechnol 31(9):827–832
Xie S, Shen B, Zhang C et al (2014) sgRNAcas9: a software package for designing CRISPR sgRNA and evaluating potential off-target cleavage sites. PLoS One 9(6):100448
Cong L, Ran FA, Cox D et al (2013) Multiplex genome engineering using CRISPR/Cas systems. Science 339(6121):819–823
Schiml S, Fauser F, Puchta H (2014) The CRISPR/C as system can be used as nuclease for in planta gene targeting and as paired nickases for directed mutagenesis in Arabidopsis resulting in heritable progeny. Plant J 80(6):1139–1150
Acknowledgments
NA is thankful to the International Centre for Genetic Engineering and Biotechnology (ICGEB) for supporting his work via CRP/PAK20–02.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature
About this protocol
Cite this protocol
Ahmad, N., Fatima, S., Hundleby, P., Mehboob-ur-Rahman (2024). Genome Editing in Brassica juncea Using CRISPR/Cas9 Technology. In: Maghuly, F. (eds) Plant Functional Genomics. Methods in Molecular Biology, vol 2788. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-3782-1_20
Download citation
DOI: https://doi.org/10.1007/978-1-0716-3782-1_20
Published:
Publisher Name: Humana, New York, NY
Print ISBN: 978-1-0716-3781-4
Online ISBN: 978-1-0716-3782-1
eBook Packages: Springer Protocols