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Knocking Out the Wall: Revised Protocols for Gene Targeting in Physcomitrella patens.
Alison W Roberts1, Christos S Dimos2, Michael J Budziszek2
1Department of Biological Sciences, Center for Biotechnology and Life Sciences, University of Rhode Island, Kingston, RI, USA. aroberts@uri.edu.
Methods in Molecular Biology (Clifton, N.J.)
|July 4, 2020
Summary
Physcomitrella patens is a model plant for gene function studies. Researchers developed gene knockout protocols to investigate cell wall biosynthesis and evolution in this moss species.
Area of Science:
- Plant biology
- Molecular genetics
- Biochemistry
Background:
- The moss Physcomitrella patens is a model organism for plant gene function studies due to efficient gene targeting.
- Its cell wall composition resembles that of vascular plants.
- Phylogenetic analysis of its genome reveals putative cell wall biosynthetic enzymes.
Purpose of the Study:
- To provide methods for targeted gene knockout in Physcomitrella patens.
- To enable investigation into the evolution of cell wall polysaccharides.
- To study the enzymes responsible for cell wall synthesis.
Main Methods:
- Development of protocols for vector construction.
- Methods for maintaining Physcomitrella patens cultures.
- Procedures for protoplast transformation.
- Analysis of genotypes and phenotypes of transformed lines.
Main Results:
- Established protocols for targeted gene knockout in Physcomitrella patens.
- Identified genes putatively encoding cell wall biosynthetic enzymes.
- Provided a basis for studying cell wall evolution.
Conclusions:
- Physcomitrella patens is a valuable model for studying plant cell wall biosynthesis and evolution.
- The developed gene knockout methods facilitate functional analysis of cell wall enzymes.
- This research contributes to understanding the genetic basis of plant cell wall formation.

