Complete genome sequence of Rhizobium leguminosarum bv trifolii strain WSM2304, an effective microsymbiont of the South American clover Trifolium polymorphum
Document Type
Article
Publication Date
2-28-2010
Journal Title
Standards in Genomic Sciences
ISSN
1944-3277
Keywords
microsymbiont, non-pathogenic, aerobic, Gram-negative rod, root-nodule bacteria, nitrogen fixation, Alphaproteobacteria
Disciplines
Agronomy and Crop Sciences | Plant Biology
Abstract
Rhizobium leguminosarum bv trifolii is the effective nitrogen fixing microsymbiont of a diverse range of annual and perennial Trifolium (clover) species. Strain WSM2304 is an aerobic, motile, non-spore forming, Gram-negative rod, isolated from Trifolium polymorphum in Uruguay in 1998. This microsymbiont predominated in the perennial grasslands of Glencoe Research Station, in Uruguay, to competitively nodulate its host, and fix atmospheric nitrogen. Here we describe the basic features of WSM2304, together with the complete genome sequence, and annotation. This is the first completed genome sequence for a nitrogen fixing microsymbiont of a clover species from the American center of origin. We reveal that its genome size is 6,872,702 bp encoding 6,643 protein-coding genes and 62 RNA only encoding genes. This multipartite genome was found to contain 5 distinct replicons; a chromosome of size 4,537,948 bp and four circular plasmids of size 1,266,105 bp, 501,946 bp, 308,747 bp and 257,956 bp.
Recommended Citation
Reeve, W., O’Hara, G., Chain, P. et al. Complete genome sequence of Rhizobium leguminosarum bv trifolii strain WSM2304, an effective microsymbiont of the South American clover Trifolium polymorphum. Stand in Genomic Sci 2, 66–76 (2010). https://doi.org/10.4056/sigs.44642
