Plant and Soil

, Volume 186, Issue 1, pp 69–74

Corresponding 16S rRNA gene segments in Rhizobiaceae and Aeromonas yield discordant phylogenies

Authors

  • B. D. Eardly
    • Department of BiologyThe Pennsylvania State University
  • F. -S. Wang
    • Department of BiologyThe Pennsylvania State University
  • P. van Berkum
    • Soybean and Alfalfa Research LaboratoryUSDA-ARS
Article

DOI: 10.1007/BF00035057

Cite this article as:
Eardly, B.D., Wang, F.-. & van Berkum, P. Plant Soil (1996) 186: 69. doi:10.1007/BF00035057

Abstract

Previous evidence has indicated that the 16S rRNA genes in certain species of Aeromonas may have a history of lateral transfer and recombination. A comparative analysis of patterns of 16S nucleotide sequence polymorphism among species of Rhizobium and Agrobacterium was conducted to determine if there is similar evidence for chimeric 16S genes in members of the Rhizobiaceae. Results from phylogenetic analyses and comparison of patterns of nucleotide sequence polymorphism in portions of rhizobial 16S genes revealed the same type of segment-dependent polymorphic site partitioning that was previously reported for Aeromonas. These results support the hypothesis that certain 16S segments in rhizobia may have a history of lateral transfer and recombination.

Key words

Agrobacteriumpopulation geneticsRhizobiumsystematicstaxonomy

Abbreviations

16S rRNA

16S ribosomal ribonucleic acid

16S

the 16S rRNA gene

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Copyright information

© Kluwer Academic Publishers 1996