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Scientific Article
unige:84778 
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Genetic snapshots of the Rhizobium species NGR234 genome |
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| Authors | ||
| Published in | Genome Biology. 2000, vol. 1, no. 6, p. 1-17 | |
| Abstract | In nitrate-poor soils, many leguminous plants form nitrogen-fixing symbioses with members of the bacterial family Rhizobiaceae. We selected Rhizobium sp. NGR234 for its exceptionally broad host range, which includes more than I 12 genera of legumes. Unlike the genome of Bradyrhizobium japonicum, which is composed of a single 8.7 Mb chromosome, that of NGR234 is partitioned into three replicons: a chromosome of about 3.5 Mb, a megaplasmid of more than 2 Mb (pNGR234b) and pNGR234a, a 536,165 bp plasmid that carries most of the genes required for symbioses with legumes. Symbiotic loci represent only a small portion of all the genes coded by rhizobial genomes, however. To rapidly characterize the two largest replicons of NGR234, the genome of strain ANU265 (a derivative strain cured of pNGR234a) was analyzed by shotgun sequencing. | |
| Keywords | Bacterial Proteins/genetics — Base Sequence — DNA — Bacterial/chemistry/genetics — Genome — Bacterial — Molecular Sequence Data — Plasmids/genetics — Replicon/genetics — Rhizobium/genetics — Sequence Alignment — Sequence Analysis — DNA/methods — Sequence Homology — Nucleic Acid | |
| Identifiers | PMID: 11178268 | |
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| Citation (ISO format) | VIPREY, Virginie et al. Genetic snapshots of the Rhizobium species NGR234 genome. In: Genome Biology, 2000, vol. 1, n° 6, p. 1-17. doi: 10.1186/gb-2000-1-6-research0014 https://archive-ouverte.unige.ch/unige:84778 |
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