Abstract
A transformation method has been developed for the phytopathogenic fungus Botrytis cinerea. Protoplasts were transformed with pAN7-1 plasmid carrying the Escherichia coli hygromycin phosphotransferase gene (hph), confering hygromycin B resistance, downstream from an Aspergillus nidulans promoter. Molecular analysis showed that transformation resulted in an integration of the plasmid into different regions of the B. cinerea genome and occurred through non-homologous recombination. The frequency was 2–10 transformants per μg of DNA. Transformants expressed phosphotransferase activity confirming that the hph gene conferred the hygromycin-resistance phenotype. All transformants analysed so far proved to be stable after several subcultures without any selective pressure.
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Hamada, W., Reignault, P., Bompeix, G. et al. Transformation of Botrytis cinerea with the hygromycin B resistance gene, hph . Curr Genet 26, 251–255 (1994). https://doi.org/10.1007/BF00309556
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DOI: https://doi.org/10.1007/BF00309556