Highly Specific hosts in the Listia section of the Legume Genus Lotononis are nodulated by Methylobacteria and by novel isolates that are a new genus of root nodule bacteria

Ardley, J.K., O'Hara, G.W., Reeve, W.G., Yates, R.J., Dilworth, M.J. and Howieson, J.G. (2009) Highly Specific hosts in the Listia section of the Legume Genus Lotononis are nodulated by Methylobacteria and by novel isolates that are a new genus of root nodule bacteria. In: The 16th International Congress of Nitrogen Fixation, 14 - 19 June, Big Sky, Montana.

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Abstract

Symbiotic specificity and nodule morphology are characteristics that can be used as taxonomic markers in the legume genus Lotononis and that support its division into two separate genera. Lotononis (from the Crotalarieae tribe in the Genistoid clade of the sub-family Fabaceae) is of mainly southern African origin, comprising some 150 species of herbs and small shrubs. Our work has shown that Lotononis is nodulated by phylogenetically diverse root nodule bacteria and that different specificity groups exist within the genus.