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Prevalence of the Rhizobium etli-like allele in genes coding for 16S rRNA among the indigenous rhizobial populations found associated with wild beans from the Southern Andes in Argentina
- Source :
- Scopus-Elsevier, SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP
- Publication Year :
- 1998
-
Abstract
- A collection of rhizobial isolates from nodules of wild beans,Phaseolus vulgaris var. aborigineus, found growing in virgin lands in 17 geographically separate sites in northwest Argentina was characterized on the basis of host range, growth, hybridization to a nifH probe, analysis of genes coding for 16S rRNA (16S rDNA), DNA fingerprinting, and plasmid profiles. Nodules in field-collected wild bean plants were largely dominated by rhizobia carrying the 16S rDNA allele of Rhizobium etli. A similar prevalence of the R. etli allele was observed among rhizobia trapped from nearby soil. Intragroup diversity of wild bean isolates with either R. etli-like or Rhizobium leguminosarum bv. phaseoli-like alleles was generally found across northwest Argentina. The predominance of the R. etli allele suggests that in this center of origin of P. vulgaris the coevolution of Rhizobium spp. and primitive beans has resulted in this preferential symbiotic association<br />Instituto de Biotecnologia y Biologia Molecular
- Subjects :
- Rhizobiaceae
Molecular Sequence Data
Argentina
Biology
medicine.disease_cause
Applied Microbiology and Biotechnology
DNA, Ribosomal
Phaseolus vulgaris
Rhizobium etli
Rhizobium leguminosarum
Rhizobia
Plant Microbiology
RNA, Ribosomal, 16S
Botany
Nitrogenase
medicine
16S rRNA
Symbiosis
Ribosomal DNA
Alleles
Phylogeny
Ciencias Exactas
Plants, Medicinal
Ecology
Base Sequence
food and beverages
Fabaceae
Genes, rRNA
biochemical phenomena, metabolism, and nutrition
biology.organism_classification
DNA Fingerprinting
Genes, Bacterial
Rhizobium
bacteria
Phaseolus
Oxidoreductases
Food Science
Biotechnology
Plasmids
Subjects
Details
- Language :
- Spanish; Castilian
- Database :
- OpenAIRE
- Journal :
- Scopus-Elsevier, SEDICI (UNLP), Universidad Nacional de La Plata, instacron:UNLP
- Accession number :
- edsair.doi.dedup.....397e68b95ac13701f7fe3317eb57d0c1