srRNA evolution and phylogenetic relationships of the genus Naegleria (Protista: Rhizopoda).
@article{Baverstock1989srRNAEA, title={srRNA evolution and phylogenetic relationships of the genus Naegleria (Protista: Rhizopoda).}, author={Peter R. Baverstock and S Illana and Peter Christy and B S Robinson and A. Myron Johnson}, journal={Molecular biology and evolution}, year={1989}, volume={6 3}, pages={ 243-57 } }
A rapid RNA sequencing technique was used to partially sequence the small-subunit ribosomal RNA (srRNA) of four species of the amoeboid genus Naegleria. The extent of nucleotide sequence divergence between the two most divergent species was roughly similar to that found between mammals and frogs. However, the pattern of variation among the Naegleria species was quite different from that found for those species of tetrapods characterized to date. A phylogenetic analysis of the consensus…
Figures and Tables from this paper
43 Citations
Small subunit ribosomal RNA evolution in the genus Acanthamoeba.
- BiologyJournal of general microbiology
- 1990
The results of the comparisons were consistent with the hypotheses that the genus is monophyletic, that the Pussard and Pons grouping system is valid, and that the Acanthamoeba expansion segments in the srRNA gene evolve at a much faster rate than the rest of the gene.
The phylogenetic relationships of the genus Eimeria based on comparison of partial sequences of 18S rRNA
- BiologySystematic Parasitology
- 2004
The results show that Eimeria is almost certainly monophyletic with the apicomplexans Sarcocystis, Toxoplasma and Cryptosporidium.
Comparison of partial SSUrDNA sequences suggests revisions of species names in the genus Naegleria
- Biology
- 1994
Genome structure and evolution of Naegleria and its relatives.
- BiologyThe Journal of protozoology
- 1990
In the 4 yr since the molecular biology of DNA in Naegleria was last reviewed several major advances have been made, and these are reviewed here: isolation and characterization of mitochondrial and…
SSU rRNA-based phylogenetic position of the genera Amoeba and Chaos (Lobosea, Gymnamoebia): the origin of gymnamoebae revisited.
- BiologyMolecular biology and evolution
- 2001
Sequence analysis suggests that the four species of typical large gymnamoebae are closely related to the species of genera Saccamoeba, Leptomyxa, RhizamoebA, Paraflabellula, Hartmannella, and Echinamoebe, in agreement with morphology-based taxonomy.
Molecular cloning of, and phylogenetic analysis of, an actin in Naegleria fowleri.
- BiologyFEMS microbiology letters
- 1996
Sequence variations in small-subunit ribosomal RNAs of Hartmannella vermiformis and their phylogenetic implications.
- BiologyMolecular biology and evolution
- 1994
Parsimony, distance, and bootstrap analyses used to examine phylogenetic relationships between the srDNA sequences of H. vermiformis and other eukaryotes indicated that Hartmannella sequences were most closely related to those of Acanthamoeba and the alga Cryptomonas.
Evolution of the small subunit ribosomal RNA in higher vertebrates
- Biology
- 1991
Sequencing of the srRNA molecule is not suitable at this taxonomic level because of insufficient nucleotide sequence variation and the phylogenetic branching of the higher vertebrates has been mainly 'bush-like' rather than 'tree-like'.
Identity of Naegleria strains isolated from organs of freshwater fishes.
- BiologyDiseases of aquatic organisms
- 2001
Eighteen Naegleria strains were isolated from organs of freshwater fishes belonging to 5 species and, based on the SSU rRNA sequences and riboprints, RFLP-PCR patterns appeared in phylogenetic trees to be closely related to Naeglersia clarki.
Ribosomal RNA Phylogenies
- Biology
- 1991
Considering bacterial and chloroplastic c-type cytochomes together with cytochrome c, the first universal phylogenetic tree has been established, but in this tree, the Eukaryote kingdom constituted nothing but a small internal branch of the bacterial tree.
References
SHOWING 1-10 OF 48 REFERENCES
Phylogenetic relationships of the apicomplexan protist Sarcocystis as determined by small subunit ribosomal RNA comparison.
- BiologyThe Journal of parasitology
- 1988
Phylogenetic analysis of the semiconserved regions by 4 different tree-building methods using bacteria as an outgroup all concur in showing monophyly of Sarcocystis gigantea and Toxoplasma gondii to the exclusion of all other taxa for which homologous sequences are available.
Partial phylogeny of the unicellular eukaryotes based on rapid sequencing of a portion of 28S ribosomal RNA.
- BiologyProceedings of the National Academy of Sciences of the United States of America
- 1988
Using a rapid rRNA sequencing technique, the sequence of the 400 nucleotides located at the 5' end of the large subunit rRNA molecule from eight species of unicellular eukaryotes (protists) is determined, suggesting a very ancient origin for organelles containing a 9 + 2 microtubular arrangement.
Evolutionary diversity of eukaryotic small-subunit rRNA genes.
- BiologyProceedings of the National Academy of Sciences of the United States of America
- 1986
The small-subunit rRNA gene sequences of the flagellated protists Euglena gracilis and Trypanosoma brucei were determined and compared and the genetic diversity in this collection of eukaryotes is seen to exceed that displayed within either the eubacterial or the archaebacterial lines of descent.
Ribosomal RNA sequence suggests microsporidia are extremely ancient eukaryotes
- BiologyNature
- 1987
Comparison sequence analysis shows that the small subunit rRNA of the microsporidium Vairimorpha necatrix is more unlike those of other eukaryotes than any known eukARYote 18S rRNA sequence, and concludes that the lineage leading to microspora branched very early from that leading to other eUKaryotes.
Rapid nucleotide sequence analysis of the small subunit ribosomal RNA of Toxoplasma gondii: evolutionary implications for the Apicomplexa.
- BiologyMolecular and biochemical parasitology
- 1987
Length variation in eukaryotic rRNAs: small subunit rRNAs from the protists Acanthamoeba castellanii and Euglena gracilis.
- BiologyGene
- 1986
The small-subunit ribosomal RNA gene sequences from the hypotrichous ciliates Oxytricha nova and Stylonychia pustulata.
- BiologyMolecular biology and evolution
- 1985
The complete nucleotide sequence of the small-subunit ribosomal RNA genes for the ciliate protozoans Stylonychia pustulata and Oxytricha nova are determined and are homologous and sufficiently similar that these organisms must be closely related.
Biochemical identification and phylogenetic relationships in free-living amoebas of the genus Naegleria.
- BiologyThe Journal of protozoology
- 1985
The genetic data suggest that there are two main phylogenetic groups in the genus Naegleria, and certain enzymes proved particularly useful from a practical point of view as they allow easy and reliable identification of pathogenic N. fowleri and N. lovaniensis strains.
Origin and evolution of organisms as deduced from 5S ribosomal RNA sequences.
- Biology, Environmental ScienceMolecular biology and evolution
- 1987
A phylogenetic tree of most of the major groups of organisms has been constructed from the 352 5S ribosomal RNA sequences now available. The tree suggests that there are several major groups of…
Sequence of the small subunit ribosomal RNA gene expressed in the bloodstream stages of Plasmodium berghei: evolutionary implications.
- BiologyThe Journal of protozoology
- 1986
In a phylogenetic tree constructed from pairwise comparisons of eukaryotic small subunit rRNA sequences, the apicomplexan line branches at a rather early point in eukARYotic evolution before any multicellular kingdoms had yet appeared.