期刊
PLASMID
卷 66, 期 2, 页码 53-66出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.plasmid.2011.04.002
关键词
Rhizobium leguminosarum; Plasmid; repABC; Incompatibility
资金
- Ministry of Science and Higher Education of Poland [N N301 028734]
Soil bacteria of the genus Rhizobium possess complex genomes consisting of a chromosome and in addition, often, multiple extrachromosomal replicons, which are usually equipped with repABC genes that control their replication and partition. The replication regions of four plasmids of Rhizobium leguminosarum by. trifolii TA1 (RtTA1) were identified and characterized. They all contained a complete set of repABC genes. The structural diversity of the rep regions of RtTA1 plasmids was demonstrated for parS and inc alpha elements, and this was especially apparent in the case of symbiotic plasmid (pSym). Incompatibility assays with recombinant constructs containing parS or inca demonstrated that RtTA1 plasmids belong to different incompatibility groups. Horizontal acquisition was plausibly the main contributor to the origin of RtTA1 plasmids and pSym is probably the newest plasmid of this strain. Phylogenetic and incompatibility analyses of repABC regions of three closely related strains: RtTA1. R. leguminosarum by. viciae 3841 and Rhizobium etli CFN42, provided data on coexistence of their replicons in a common genomic framework. (C) 2011 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据