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The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.

Diversity and phylogeny of rhizobia

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PETER, J., YOUNG, W., HAUKKA, KAISA E.·1996·New Phytologist

Abstract

SUMMARY: Rhizobia are the bacteria that form nitrogen‐fixing nodules on legumes. The current list of four rhizobium genera and 17 species is reviewed, with some comments on likely future developments in the taxonomy. Sequences of the small subunit ribosomal RNA (SSU or 16S rRNA) support the well‐established subdivision of rhizobia into three genera: Rhizobium, Bradyrhizobium and Azorhizobium. These all lie within the alpha subdivision of the Proteabacteria, but on quite distinct branches, each of which also includes many bacterial species that are not rhizobia. Rhizobium, by this definition, is still broad and polyphyletic, so there have recently been suggestions that this genus should be split into four genera. SSU sequences may be the best phylogenetic tool we have, but they are not an infallible guide to evolutionary relationships, particularly among closely related species: slow evolution, recombination, intraspecinc variation and even intragenomic heterogeneity are all limitations that can be illustrated by examples from the rhizobia. It seems likely that the ability to form legume nodules was not present in the common ancestor of all rhizobia but that the nodulation genes were transferred between phylogenetically distinct bacteria, so that the phylogeny of nodulation genes will probably differ from that of the bacteria that carry them. Nitrogen fixation genes are often linked to nodulation genes, but they need not have the same evolutionary history.

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Crossref · 10.1111/j.1469-8137.1996.tb04344.x

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Metadata

Authors
PETER, J., YOUNG, W., & HAUKKA, K. E.
Venue
New Phytologist
Publisher
Wiley
Published
1996-05
Volume
133
Issue
1
Pages
87-94
ISSN
  • 0028-646X (ISSN-L)
  • 1469-8137
OpenAlex
W2047717547
Cited by
323
References
23
FWCI
26.60
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Diversity and phylogeny of rhizobia. https://app.cochat.ai/papers/10.1111/j.1469-8137.1996.tb04344.x
The paper
PETER, J., YOUNG, W., & HAUKKA, K. E. (1996). Diversity and phylogeny of rhizobia. New Phytologist. https://doi.org/10.1111/j.1469-8137.1996.tb04344.x

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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