Gene Replacement by a Selectable Marker in the Filamentous FungusMagnaporthe oryzae

Magnaporthe oryzae is a filamentous fungus responsible for the detrimental rice blast disease afflicting rice crops worldwide. For years, M. oryzae has served as an excellent model organism to study plant pathogen interactions due to its sequenced genome, its amenability to functional genetics, and...

Full description

Saved in:
Bibliographic Details
Published in:Bio-protocol 2023-09, Vol.13 (17), p.e4809-e4809
Main Authors: Garcia, Nalleli, Farmer, Alexa N, Baptiste, Richmond, Fernandez, Jessie
Format: Article
Language:English
Subjects:
Biology
Methods
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Magnaporthe oryzae is a filamentous fungus responsible for the detrimental rice blast disease afflicting rice crops worldwide. For years, M. oryzae has served as an excellent model organism to study plant pathogen interactions due to its sequenced genome, its amenability to functional genetics, and its capacity to be tracked in laboratory settings. As such, techniques to genetically manipulate M. oryzae for gene deletion range from genome editing via CRISPR-Cas9 to gene replacement through homologous recombination. This protocol focuses on detailing how to perform gene replacement in the model organism, M. oryzae, through a split marker method. This technique relies on replacing the open reading frame of a gene of interest with a gene conferring resistance to a specific selectable chemical, disrupting the transcription of the gene of interest and generating a knockout mutant M. oryzae strain. Key features Comprehensive overview of primer design, PEG-mediated protoplast transformation, and fungal DNA extraction for screening.
ISSN:2331-8325
DOI:10.21769/BioProtoc.4809