Molecular Biology and Evolution, Vol 16, 1740-1751, Copyright © 1999 by Society for Molecular Biology and Evolution
JD Silberman, CG Clark, LS Diamond and ML Sogin
We sequenced small-subunit ribosomal RNA genes (16S-like rDNAs) of 10
species belonging to the genera Entamoeba and Endolimax. This study was
undertaken to (1) resolve the relationships among the major lineages of
Entamoeba previously identified by riboprinting; (2) examine the validity
of grouping the genera Entamoeba and Endolimax in the same family, the
Entamoebidae; and (3) examine how different models of nucleotide evolution
influence the position of Entamoeba in eukaryotic phylogenetic
reconstructions. The results obtained with distance, parsimony, and
maximum-likelihood analyses support monophyly of the genus Entamoeba and
are largely in accord with riboprinting results. Species of Entamoeba
producing cysts with the same number of nuclei from monophyletic groups.
The most basal Entamoeba species are those that produce cysts with eight
nuclei, while the group producing four- nucleated cysts is most derived.
Most phylogenetic reconstructions support monophyly of the Entamoebidae. In
maximum-likelihood and parsimony analyses, Endolimax is a sister taxon to
Entamoeba, while in some distance analyses, it represents a separate
lineage. The secondary loss of mitochondria and other organelles from these
genera is confirmed by their relatively late divergence in eukaryotic
16S-like rDNA phylogenies. Finally, we show that the positions of some
(fast- evolving) eukaryotic lineages are uncertain in trees constructed
with models that make corrections for among-site rate variation.
ORIGINAL ARTICLE
Phylogeny of the genera Entamoeba and Endolimax as deduced from small- subunit ribosomal RNA sequences
Marine Biological Laboratory, Woods Hole, Massachusetts 02543, USA.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  J. E. Teixeira and C. D. Huston Evidence of a Continuous Endoplasmic Reticulum in the Protozoan Parasite Entamoeba histolytica Eukaryot. Cell, July 1, 2008; 7(7): 1222 - 1226. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 B. Tawari, I. K. M. Ali, C. Scott, M. A. Quail, M. Berriman, N. Hall, and C. G. Clark Patterns of Evolution in the Unique tRNA Gene Arrays of the Genus Entamoeba Mol. Biol. Evol., January 1, 2008; 25(1): 187 - 198. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. G. Clark, F. Kaffashian, B. Tawari, J. J. Windsor, A. Twigg-Flesner, M. C. G. Davies-Morel, J. Blessmann, F. Ebert, B. Peschel, A. L. Van, et al. New insights into the phylogeny of Entamoeba species provided by analysis of four new small-subunit rRNA genes. Int J Syst Evol Microbiol, September 1, 2006; 56(Pt 9): 2235 - 2239. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. J. Pritham, C. Feschotte, and S. R. Wessler Unexpected Diversity and Differential Success of DNA Transposons in Four Species of Entamoeba Protozoans Mol. Biol. Evol., September 1, 2005; 22(9): 1751 - 1763. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. F. Fahrni, I. Bolivar, C. Berney, E. Nassonova, A. Smirnov, and J. Pawlowski Phylogeny of Lobose Amoebae Based on Actin and Small-Subunit Ribosomal RNA Genes Mol. Biol. Evol., November 1, 2003; 20(11): 1881 - 1886. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. Blessmann, H. Buss, P. A. T. Nu, B. T. Dinh, Q. T. V. Ngo, A. L. Van, M. D. A. Alla, T. F. H. G. Jackson, J. I. Ravdin, and E. Tannich Real-Time PCR for Detection and Differentiation of Entamoeba histolytica and Entamoeba dispar in Fecal Samples J. Clin. Microbiol., December 1, 2002; 40(12): 4413 - 4417. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. B. Dacks, A. Marinets, W. Ford Doolittle, T. Cavalier-Smith, and J. M. Logsdon Jr Analyses of RNA Polymerase II Genes from Free-Living Protists: Phylogeny, Long Branch Attraction, and the Eukaryotic Big Bang Mol. Biol. Evol., June 1, 2002; 19(6): 830 - 840. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
V. P. Edgcomb, A. G. B. Simpson, L. A. Zettler, Thomas. A. Nerad, D. J. Patterson, M. E. Holder, and M. L. Sogin Pelobionts are Degenerate Protists: Insights from Molecules and Morphology Mol. Biol. Evol., June 1, 2002; 19(6): 978 - 982. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. D. Silberman, A. G. B. Simpson, J. Kulda, I. Cepicka, V. Hampl, P. J. Johnson, and A. J. Roger Retortamonad Flagellates are Closely Related to Diplomonads--Implications for the History of Mitochondrial Function in Eukaryote Evolution Mol. Biol. Evol., May 1, 2002; 19(5): 777 - 786. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 E. Bapteste, H. Brinkmann, J. A. Lee, D. V. Moore, C. W. Sensen, P. Gordon, L. Durufle, T. Gaasterland, P. Lopez, M. Muller, et al. The analysis of 100 genes supports the grouping of three highly divergent amoebae: Dictyostelium, Entamoeba, and Mastigamoeba PNAS, February 5, 2002; 99(3): 1414 - 1419. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Turmel, C. Otis, and C. Lemieux The Complete Mitochondrial DNA Sequence of Mesostigma viride Identifies This Green Alga as the Earliest Green Plant Divergence and Predicts a Highly Compact Mitochondrial Genome in the Ancestor of All Green Plants Mol. Biol. Evol., January 1, 2002; 19(1): 24 - 38. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
I. Bolivar, J. F. Fahrni, A. Smirnov, and J. Pawlowski SSU rRNA-based Phylogenetic Position of the Genera Amoeba and Chaos (Lobosea, Gymnamoebia): The Origin of Gymnamoebae Revisited Mol. Biol. Evol., December 1, 2001; 18(12): 2306 - 2314. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. B. Dacks, J. D. Silberman, A. G. B. Simpson, S. Moriya, T. Kudo, M. Ohkuma, and R. J. Redfield Oxymonads Are Closely Related to the Excavate Taxon Trimastix Mol. Biol. Evol., June 1, 2001; 18(6): 1034 - 1044. [Abstract] [Full Text]
|
|
|
|
|
|
J. J. Verweij, A. M. Polderman, and C. G. Clark Genetic Variation among Human Isolates of Uninucleated Cyst-Producing Entamoeba Species J. Clin. Microbiol., April 1, 2001; 39(4): 1644 - 1646. [Abstract] [Full Text]
|
|
|
|
|
|
K. Takahashi and M. Nei Efficiencies of Fast Algorithms of Phylogenetic Inference Under the Criteria of Maximum Parsimony, Minimum Evolution, and Maximum Likelihood When a Large Number of Sequences Are Used Mol. Biol. Evol., August 1, 2000; 17(8): 1251 - 1258. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Frisardi, S. K. Ghosh, J. Field, K. Van Dellen, R. Rogers, P. Robbins, and J. Samuelson The Most Abundant Glycoprotein of Amebic Cyst Walls (Jacob) Is a Lectin with Five Cys-Rich, Chitin-Binding Domains Infect. Immun., July 1, 2000; 68(7): 4217 - 4224. [Abstract] [Full Text] [PDF]
|
|