NDLI: Genetic diversity of root nodule bacteria nodulating Lotus corniculatus and Anthyllis vulneraria in Sweden.

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Genetic diversity of root nodule bacteria nodulating Lotus corniculatus and Anthyllis vulneraria in Sweden.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Ampomah, Osei Yaw Huss-Danell, Kerstin
Spatial Coverage	Sweden
Description	Country affiliation: Sweden Author Affiliation: Ampomah OY ( Department of Agricultural Research for Northern Sweden, Swedish University of Agricultural Sciences (SLU), Umeå, Sweden. oseiampomah@yahoo.com)
Abstract	Very little is known about the genetic diversity and phylogeny of rhizobia nodulating Lotus species in northern temperate regions. We have therefore studied the genetic diversity among a total of 61 root nodule bacteria isolated from Lotus corniculatus and Anthyllis vulneraria from different geographic sites and habitats in Sweden by restriction fragment length polymorphism (RFLP) of the internal transcribed spacer between their 16S rRNA and 23S rRNA (IGS) region. A high diversity consisting of 26 IGS types from 54 L. corniculatus isolates and five IGS types from seven A. vulneraria isolates was found. The 16S rRNA sequences and phylogeny of representatives of the different IGS types showed four interesting exceptions from the majority of the isolates belonging to the genus Mesorhizobium: Two isolates were both found to be closely related to Rhodococcus spp., and two other isolates showed close relationship with Geobacillus spp. and Paenibacillus spp., respectively. The nodA sequences and phylogeny showed that all the isolates, including those not belonging to the traditional rhizobia genera, harbored nodA sequences which were typical of Mesorhizobium loti. Generally, the 16S rRNA and nodA phylogenetic trees were not congruent in that isolates with similar 16S rRNA sequences were associated with isolates harboring different nodA sequences. All the isolates were confirmed to nodulate L. corniculatus in an inoculation test. This is the first report of members of these non-rhizobia genera being able to nodulate legumes, and we suggest that they may have acquired their nodulating properties through lateral gene transfer.
File Format	HTM / HTML
ISSN	07232020
Issue Number	4
Volume Number	34
e-ISSN	16180984
Journal	Systematic and Applied Microbiology
Language	English
Publisher	Elsevier
Publisher Date	2011-06-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Microbiology Bacteria Classification Genetics Biodiversity Fabaceae Microbiology Genetic Variation Root Nodules, Plant Acyltransferases Isolation & Purification Bacterial Proteins Bacterial Typing Techniques Cluster Analysis Dna, Bacterial Chemistry Dna, Ribosomal Dna, Ribosomal Spacer Molecular Sequence Data Molecular Typing Phylogeny Polymorphism, Restriction Fragment Length Rna, Ribosomal, 16s Sequence Analysis, Dna Sweden Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics Microbiology Applied Microbiology and Biotechnology

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