Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia

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dc.creatorDegefu, T.
dc.creatorWoldemeskel, Endalkachew
dc.creatorWoliy, K.
dc.creatorFrostegård, A.
dc.date2017-06
dc.date2017-05-11T13:09:20Z
dc.date2017-05-11T13:09:20Z
dc.date.accessioned2026-06-27T16:47:58Z
dc.descriptionBacteria belonging to the genus Bradyrhizobium nodulate various leguminous woody plants and herbs, including economically important crops such as soybean, peanut and cowpea. Here we analysed 39 Bradyrhizobium strains originating from root nodules of the leguminous trees and crops Acacia saligna, Faidherbia albida, Erythrina brucei, Albizia gummifera, Millettia ferruginea, Cajanus cajan, Vigna unguiculata and Phaseolus vulgaris, growing in southern Ethiopia. Multilocus sequence analyses (MLSA) of the 16S rRNA, glnII, recA, gyrB and dnaK genes and the ITS region grouped the test strains into seven well-supported genospecies (I–VII), six of which occupied distinct positions excluding all hitherto defined Bradyrhizobium species. Analyses of the nodA, nodC and nifH genes suggested different evolutionary history of the chromosomal and symbiosis-related genes. Our study corroborates earlier findings that Ethiopia is a hotspot for rhizobial biodiversity, justifying further search for novel strains from this region and calling for intensified research on the ecology and biochemistry of these organisms.
dc.identifierhttps://hdl.handle.net/10568/80986
dc.identifier.urihttp://hdl.handle.net/123456789/133471
dc.languageen
dc.publisherElsevier
dc.rightsLimited Access
dc.sourceDegefu, T., Wolde-meskel, E., Woliy, K. and Frostegård, A. 2017. Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia. Systematic and Applied Microbiology 40(4):205-214.
dc.subjectanimal feeding
dc.subjectbiotechnology
dc.subjectlegumes
dc.titlePhylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia
dc.typeJournal Article

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Instituto Internacional de Investigaciones Pecuarias (ILRI)