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Complete genome sequence of the Medicago microsymbiont Ensifer (Sinorhizobium) medicae strain WSM419

Reeve, W.G., Chain, P., O'Hara, G.W., Ardley, J.K., Nandasena, K.G., Bräu, L., Tiwari, R., Malfatti, S., Kiss, H., Lapidus, A., Copeland, A., Nolan, M., Land, M., Hauser, L., Chang, Y-J, Ivanova, N., Mavromatis, K., Markowitz, V., Kyrpides, N, Gollagher, M., Yates, R.J., Dilworth, M.J. and Howieson, J.G. (2010) Complete genome sequence of the Medicago microsymbiont Ensifer (Sinorhizobium) medicae strain WSM419. Standards in Genomic Sciences, 2 (1). pp. 77-86.

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    Abstract

    Ensifer (Sinorhizobium) medicae is an effective nitrogen fixing microsymbiont of a diverse range of annual Medicago (medic) species. Strain WSM419 is an aerobic, motile, non-spore forming, Gram-negative rod isolated from a M. murex root nodule collected in Sardinia, Italy in 1981. WSM419 was manufactured commercially in Australia as an inoculant for annual medics during 1985 to 1993 due to its nitrogen fixation, saprophytic competence and acid tolerance properties. Here we describe the basic features of this organism, together with the complete genome sequence, and annotation. This is the first report of a complete genome se-quence for a microsymbiont of the group of annual medic species adapted to acid soils. We reveal that its genome size is 6,817,576 bp encoding 6,518 protein-coding genes and 81 RNA only encoding genes. The genome contains a chromosome of size 3,781,904 bp and 3 plasmids of size 1,570,951 bp, 1,245,408 bp and 219,313 bp. The smallest plasmid is a fea-ture unique to this medic microsymbiont.

    Publication Type: Journal Article
    Murdoch Affiliation: Centre for Rhizobium Studies
    Institute for Sustainability and Technology Policy
    Publisher: Genomic Standards Consortium
    Copyright: This work is licensed under a Creative Commons Attribution 3.0 License. CC-BY-SA
    URI: http://researchrepository.murdoch.edu.au/id/eprint/2134
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