Title |
Rapid conjugative mobilization of a 100 kb segment of Bacillus subtilis chromosomal DNA is mediated by a helper plasmid with no ability for self-transfer
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Published in |
Microbial Cell Factories, January 2018
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DOI | 10.1186/s12934-017-0855-x |
Pubmed ID | |
Authors |
Megumi Miyano, Kosei Tanaka, Shu Ishikawa, Shinji Takenaka, Andrés Miguel-Arribas, Wilfried J. J. Meijer, Ken-ichi Yoshida |
Abstract |
The conjugative plasmid, pLS20, isolated from Bacillus subtilis natto, has an outstanding capacity for rapid self-transfer. In addition, it can function as a helper plasmid, mediating the mobilization of an independently replicating co-resident plasmid. In this study, the oriT sequence of pLS20cat (oriTLS20) was eliminated to obtain the plasmid, pLS20catΔoriT. This resulted in the complete loss of the conjugative transfer of the plasmid but still allowed it to mobilize a co-resident mobilizable plasmid. Moreover, pLS20catΔoriT was able to mobilize longer DNA segments, up to 113 kb of chromosomal DNA containing oriTLS20, after mixing the liquid cultures of the donor and recipient for only 15 min. The chromosomal DNA mobilization mediated by pLS20catΔoriT will allow us to develop a novel genetic tool for the rapid, easy, and repetitive mobilization of longer DNA segments into a recipient chromosome. |
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