期刊
FEMS YEAST RESEARCH
卷 14, 期 4, 页码 547-555出版社
OXFORD UNIV PRESS
DOI: 10.1111/1567-1364.12140
关键词
Rhodosporidium toruloides; Agrobacterium-mediated transformation; gene integration; antibiotic resistance
资金
- National Natural Sciences Foundation of China [31370128, 31000052, 31201302]
The basidiomycetous yeast Rhodosporidium toruloides represents an excellent producer for microbial lipids and carotenoids. However, further rational engineering of this unconventional yeast remains challenging partially because of the absence of efficient and reliable transformation method. In this study, we developed an Agrobacterium-mediated transformation (ATMT) protocol for effective gene integration into the R.toruloides genome. Both haploid and diploid strains were successfully modified, and the integration was confirmed by colony PCR, Western blot analysis and genome walking. We further demonstrated that multiple genes could be integrated by consecutive ATMT, leading to engineered strains simultaneously resistant to multiple antibiotics. Our results provided a practical method for functional integration and expression of exogenous genes in R.toruloides, which should facilitate the development of genetic tools and the construction of superior strains to produce biofuel molecules and biochemicals.
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