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Current Microbiology

, Volume 48, Issue 2, pp 140–144 | Cite as

Evidence for Multiple Acquisition of Arsenophonus by Whitefly Species (Sternorrhyncha: Aleyrodidae)

  • MyLo Ly Thao
  • Paul Baumann
Article

Abstract

Whiteflies contain primary prokaryotic endosymbionts located within specialized host cells. This endosymbiotic association is the result of a single infection of the host followed by vertical transmission of the endosymbiont to the progeny. Whiteflies may also be associated with other bacteria called secondary (S-) endosymbionts. The nucleotide sequence of the 16S–23S ribosomal DNA from S-endosymbionts of 13 whitefly species was determined. A phylogenetic analysis of these sequences indicated their grouping into two major clusters, one consisting of two S-endosymbionts related to previously described T-type endosymbionts. The second cluster contained the 16S–23S rDNA sequence of the type strain of Arsenophonus nasoniae as well as sequences of S-endosymbionts from 11 whitefly species. This Arsenophonus cluster contained four S-endosymbionts with intervening sequences of 70–184 nucleotides in their 23S rDNAs. The phylogenetic tree of the Arsenophonus cluster differed greatly from the phylogenetic tree of the primary endosymbionts. These results suggest that, unlike the primary endosymbiont, Arsenophonus may infect whiteflies multiple times and may also be horizontally transmitted.

Keywords

Nucleotide Phylogenetic Analysis Phylogenetic Tree Host Cell Type Strain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag New York Inc. 2004

Authors and Affiliations

  • MyLo Ly Thao
    • 1
  • Paul Baumann
    • 1
  1. 1.Microbiology Section, University of California, One Shields Ave., Davis, CA 95616-8665United States

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