Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia
Bacteria 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, Fai...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Elsevier
2017
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/80986 |
| _version_ | 1855524164805328896 |
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| author | Degefu, T. Woldemeskel, Endalkachew Woliy, K. Frostegård, A. |
| author_browse | Degefu, T. Frostegård, A. Woldemeskel, Endalkachew Woliy, K. |
| author_facet | Degefu, T. Woldemeskel, Endalkachew Woliy, K. Frostegård, A. |
| author_sort | Degefu, T. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Bacteria 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. |
| format | Journal Article |
| id | CGSpace80986 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace809862023-12-08T19:36:04Z Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia Degefu, T. Woldemeskel, Endalkachew Woliy, K. Frostegård, A. animal feeding biotechnology legumes Bacteria 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. 2017-06 2017-05-11T13:09:20Z 2017-05-11T13:09:20Z Journal Article https://hdl.handle.net/10568/80986 en Limited Access Elsevier Degefu, 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. |
| spellingShingle | animal feeding biotechnology legumes Degefu, T. Woldemeskel, Endalkachew Woliy, K. Frostegård, A. Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia |
| title | Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia |
| title_full | Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia |
| title_fullStr | Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia |
| title_full_unstemmed | Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia |
| title_short | Phylogenetically diverse groups of Bradyrhizobium isolated from nodules of tree and annual legume species growing in Ethiopia |
| title_sort | phylogenetically diverse groups of bradyrhizobium isolated from nodules of tree and annual legume species growing in ethiopia |
| topic | animal feeding biotechnology legumes |
| url | https://hdl.handle.net/10568/80986 |
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