Recyclable markers based on site-specific recombination allow repetitive gene targeting in filamentous fungi. Here we describe for the first time functionality of the bacterial recombination system employing beta serine recombinase acting on six recognition sequences (beta-rec/six) in a fungal host, the human pathogen Aspergillus fumigatus, and its use in establishing a self-excising resistance marker cassette for serial gene replacement.
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Hartmann et al. (2010) studied this question.
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