A Dual Selection Marker Transformation System Using Agrobacterium Tumefaciens for the Industrial Aspergillus Oryzae 3.042
Journal of microbiology and biotechnology(2019)
摘要
Currently, the genetic modification of Aspergillus oryzae is mainly dependent on protoplastmediated transformation (PMT). In this study, we established a dual selection marker system in an industrial A. oryzae 3.042 strain by using Agrobacterium tumefaciens-mediated transformation (ATMT). We first constructed a uridine/uracil auxotrophic A. oryzae 3.042 strain and a pyrithiamine (PT)-resistance binary vector. Then, we established the ATMT system by using uridine/uracil auxotrophy and PT-resistance genes as selection markers. Finally, a dual selection marker ATMT system was developed. This study demonstrates a useful dual selection marker transformation system for genetic manipulations of A. oryzae 3.042.
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关键词
Aspergillus oryzae,uridine/uracil auxotrophy,pyrithiamine,Agrobacterium tumefaciens-mediated transformation
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