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Volume 15 Issue 4
Jul.  2024
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LING Bo, CHEN Liqing, WANG Yu, YANG Nuo, FAN Lixia, GUO Guiying, LI Xuesong, CENG Jifeng, LI Qian, ZHENG Jiping. Construction of pSETsac B plasmid and evaluation of kdp E gene knockout efficiency with and without markers in Aeromonas dhakensis[J]. Journal of Tropical Biology, 2024, 15(4): 452-459. doi: 10.15886/j.cnki.rdswxb.20230056
Citation: LING Bo, CHEN Liqing, WANG Yu, YANG Nuo, FAN Lixia, GUO Guiying, LI Xuesong, CENG Jifeng, LI Qian, ZHENG Jiping. Construction of pSETsac B plasmid and evaluation of kdp E gene knockout efficiency with and without markers in Aeromonas dhakensis[J]. Journal of Tropical Biology, 2024, 15(4): 452-459. doi: 10.15886/j.cnki.rdswxb.20230056

Construction of pSETsac B plasmid and evaluation of kdp E gene knockout efficiency with and without markers in Aeromonas dhakensis

doi: 10.15886/j.cnki.rdswxb.20230056
  • Received Date: 2023-04-26
  • Rev Recd Date: 2023-09-20
  • Publish Date: 2024-07-25
  • In order to construct a novel gene-knockout plasmid, a novel plasmid pSETsac B was constructed based on the plasmids pSET4s and pK18mobsac B by using PCR and cloning techniques. Then pK18mobsac B was used as control, the knockout efficiency of kdp E gene in Aeromonas dhakensis was evaluated via the newly constructed plasmid with or without tetr marker. The results showed that there was no difference in the knockout efficiency between the two plasmids with tetr marker, but the efficiency of scarless deletion by pSETsac B was significantly higher than that of the control plasmid pK18mobsac B. p SETsac B is a thermosensitive shuttle plasmid, and is hence expected to play a role in the genetic mechanism of Gram-positive and Gram-negative bacteria. This study also provides important mutant material for investigating the kdp E gene of A. dhakensis.
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Construction of pSETsac B plasmid and evaluation of kdp E gene knockout efficiency with and without markers in Aeromonas dhakensis

doi: 10.15886/j.cnki.rdswxb.20230056

Abstract: In order to construct a novel gene-knockout plasmid, a novel plasmid pSETsac B was constructed based on the plasmids pSET4s and pK18mobsac B by using PCR and cloning techniques. Then pK18mobsac B was used as control, the knockout efficiency of kdp E gene in Aeromonas dhakensis was evaluated via the newly constructed plasmid with or without tetr marker. The results showed that there was no difference in the knockout efficiency between the two plasmids with tetr marker, but the efficiency of scarless deletion by pSETsac B was significantly higher than that of the control plasmid pK18mobsac B. p SETsac B is a thermosensitive shuttle plasmid, and is hence expected to play a role in the genetic mechanism of Gram-positive and Gram-negative bacteria. This study also provides important mutant material for investigating the kdp E gene of A. dhakensis.

LING Bo, CHEN Liqing, WANG Yu, YANG Nuo, FAN Lixia, GUO Guiying, LI Xuesong, CENG Jifeng, LI Qian, ZHENG Jiping. Construction of pSETsac B plasmid and evaluation of kdp E gene knockout efficiency with and without markers in Aeromonas dhakensis[J]. Journal of Tropical Biology, 2024, 15(4): 452-459. doi: 10.15886/j.cnki.rdswxb.20230056
Citation: LING Bo, CHEN Liqing, WANG Yu, YANG Nuo, FAN Lixia, GUO Guiying, LI Xuesong, CENG Jifeng, LI Qian, ZHENG Jiping. Construction of pSETsac B plasmid and evaluation of kdp E gene knockout efficiency with and without markers in Aeromonas dhakensis[J]. Journal of Tropical Biology, 2024, 15(4): 452-459. doi: 10.15886/j.cnki.rdswxb.20230056
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