Abstract
High rates of homologous recombination (HR) in comparison to other plants make the moss Physcomitrella patens an attractive model organism for genetic studies as well as biotechnological applications. We describe a simple protocol for the efficient biolistic transformation of protonemal tissue with minimum tissue handling steps. The transformation efficiency depends on the biolistic conditions. The bombardment of tissue with 1 μm gold particles yielded between 20 and 40 stable transformants per 1 μg of DNA. Transformation with circular plasmids generates higher frequencies of random transgene integration, whereas linear plasmids are more efficient in generating gene-targeted insertions.
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Abbreviations
- dsDNA:
-
double stranded DNA
- PEG:
-
polyethylene glycol
- T-DNA:
-
transfer DNA of Ti-plasmid
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Acknowledgements
We acknowledge financial support from Grant Agency of the Czech Republic (No. 521/04/0971), Grant Agency of AS CR (No. S5038304) and Ministry of Education, Youth and Sports of the Czech Republic (Nos. 1M0505 and LC06004). Special thanks goes to Drs. A. Cuming and Y. Kamisugi, CPS, University of Leeds, UK, for inspiring discussions and suggestions.
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Šmídková, M., Holá, M. & Angelis, K.J. Efficient biolistic transformation of the moss Physcomitrella patens . Biol Plant 54, 777–780 (2010). https://doi.org/10.1007/s10535-010-0141-9
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DOI: https://doi.org/10.1007/s10535-010-0141-9