2010 Fiscal Year Final Research Report
Estimation of the bacterial horizontal gene transfer frequency in environment from the transposition of mercury resistance transposon.
| Project/Area Number |
20570027
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Kinki University |
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Principal Investigator |
MATSUI Kazuaki Kinki University, 理工学部, 講師 (40435532)
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| Research Collaborator |
ENDO Ginro 東北学院大学, 工学部, 教授 (80194033)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 遺伝子水平伝播 / 水銀耐性細菌 / 水銀耐性トランスポゾン / 遺伝子の分散 |
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| Research Abstract |
Horizontal gene transfer (HGT) is known to be an important mechanism for acquiring new genetic information in bacterial evolution. Mobile genetic materials, such as plasmid and transposon, contribute to HGT events among bacteria, while their transfer frequency and geological distribution have yet to be characterized well. This study demonstrated the worldwide distribution of TnMERI1 type transposons among bacteria. Further quantitative analysis showed the uneven distribution of TnMERI1 type transposons in soil environments. These results indicate the occurrence of bacterial HGT in natural environment.
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