| RRC ID |
48224
|
| 著者 |
Naito M, Ogura Y, Itoh T, Shoji M, Okamoto M, Hayashi T, Nakayama K.
|
| タイトル |
The complete genome sequencing of Prevotella intermedia strain OMA14 and a subsequent fine-scale, intra-species genomic comparison reveal an unusual amplification of conjugative and mobile transposons and identify a novel Prevotella-lineage-specific repeat.
|
| ジャーナル |
DNA Res
|
| Abstract |
Prevotella intermedia is a pathogenic bacterium involved in periodontal diseases. Here, we present the complete genome sequence of a clinical strain, OMA14, of this bacterium along with the results of comparative genome analysis with strain 17 of the same species whose genome has also been sequenced, but not fully analysed yet. The genomes of both strains consist of two circular chromosomes: the larger chromosomes are similar in size and exhibit a high overall linearity of gene organizations, whereas the smaller chromosomes show a significant size variation and have undergone remarkable genome rearrangements. Unique features of the Pre. intermedia genomes are the presence of a remarkable number of essential genes on the second chromosomes and the abundance of conjugative and mobilizable transposons (CTns and MTns). The CTns/MTns are particularly abundant in the second chromosomes, involved in its extensive genome rearrangement, and have introduced a number of strain-specific genes into each strain. We also found a novel 188-bp repeat sequence that has been highly amplified in Pre. intermedia and are specifically distributed among the Pre. intermedia-related species. These findings expand our understanding of the genetic features of Pre. intermedia and the roles of CTns and MTns in the evolution of bacteria.
|
| 巻・号 |
23(1)
|
| ページ |
11-9
|
| 公開日 |
2016-2-1
|
| DOI |
10.1093/dnares/dsv032
|
| PII |
dsv032
|
| PMID |
26645327
|
| PMC |
PMC4755523
|
| MeSH |
Comparative Genomic Hybridization
DNA Transposable Elements*
Evolution, Molecular
Gene Amplification
Genome, Bacterial*
Genomics
Prevotella intermedia / genetics*
Repetitive Sequences, Nucleic Acid
|
| IF |
4.009
|
| 引用数 |
5
|
|
WOS 分野
|
GENETICS & HEREDITY
|
| リソース情報 |
| 一般微生物 |
JCM15124
JCM 13650
JCM 14110
JCM 15639
JCM 6334
JCM 8529
JCM 14753
JCM 14966
JCM 8540
JCM 6290
JCM 12258
JCM 13449
JCM 13450 |
