Correct identification of species makes the amoebozoan rRNA tree congruent with morphology for the order Leptomyxida Page 1987; with description of Acramoeba dendroida n. g., n. sp., originally misidentified as 'Gephyramoeba sp.'.

@article{Smirnov2008CorrectIO,
  title={Correct identification of species makes the amoebozoan rRNA tree congruent with morphology for the order Leptomyxida Page 1987; with description of Acramoeba dendroida n. g., n. sp., originally misidentified as 'Gephyramoeba sp.'.},
  author={Alexey V Smirnov and Elena S. Nassonova and T Cavalier-smith},
  journal={European journal of protistology},
  year={2008},
  volume={44 1},
  pages={
          35-44
        }
}
Morphological identification of protists remains an expert task, especially for little known and poorly described species. Culture collections normally accept organisms under the name provided by depositors and are not responsible for identification. Uncritical acceptance of these names by molecular phylogeneticists may result in serious errors of interpretation of phylogenetic trees based on DNA sequences, making them appear more incongruent with morphology than they really are. Several cases… Expand
Ultrastructure, SSU rRNA gene sequences and phylogenetic relationships of Flamella Schaeffer, 1926 (Amoebozoa), with description of three new species.
TLDR
The ultrastructure of trophic amoebae and especially cysts of the species studied showed considerable similarity to Comandonia operculata, and it is suggested thatComandonia may be a junior synonym of Flamella, although more ultrastructural data are necessary to test this hypothesis. Expand
Ovalopodium desertum n. sp. and the phylogenetic relationships of Cochliopodiidae (Amoebozoa).
TLDR
Analysis of actin gene sequences fails to resolve the position of Ovalopodium but demonstrates that Parvamoeba Rogerson, 1993 is probably related to Cochliopodium, and molecular trees weakly support an inclusion of the family in Flabellinia (Discosea), but more phylogenomic data are necessary to test this hypothesis. Expand
Morphology and SSU rDNA-based phylogeny of a new strain of Saccamoeba sp. [Saccamoeba Frenzel, 1892, Amoebozoa]
TLDR
Light- and electron-microscopic data on a new strain of free-living amoeba isolated from dead aquarium fish are supplemented with its SSU rDNA sequence, and sequences of NTSHR strain should be considered representative of the genus Saccamoeba instead of sequences of ATCC 30942 strain. Expand
Phylogeny of Flabellulidae (Amoebozoa: Leptomyxida) inferred from SSU rDNA sequences of the type strain of Flabellula citata Schaeffer, 1926 and newly isolated strains of marine amoebae.
TLDR
Results of phylogenetic analysis confirmed doubts of previous authors regarding generic assignment of several Rhizanmoeba and Ripidomnyxa strains and clearly evidenced mutual phylogenetic relationships within the assemblage of strains as well as their affiliation to the Leptomyxida. Expand
Grellamoeba robusta gen. n., sp. n., a possible member of the family Acramoebidae Smirnov, Nassonova et Cavalier-Smith, 2008.
TLDR
The new genus Grellamoeba is established and the type species G. robusta is described, and a tendency to group with Acramoeba dendroida Smirnov, Nassonova et Cavalier-Smith, 2008 is evident. Expand
Fine structure of Leptomyxa ambigua n. sp. CCAP 1546/2 strain, formerly known as "Rhizamoeba flabellata" (Amoebozoa, Tubulinea, Leptomyxida).
  • A. Smirnov
  • Biology, Medicine
  • European journal of protistology
  • 2018
TLDR
Light- and electron-microscopic images of CCAP 1546/2 strain are provided and it is suggested to establish it in a rank of a new species, Leptomyxa ambigua n. Expand
Multigene phylogeny resolves deep branching of Amoebozoa.
TLDR
The monophyly of Amoebozoa is unequivocally established, showing a primary dichotomy between the previously contested subphyla Lobosa and Conosa, and phylogenetic features are entirely congruent with the most recent major amoEBozoan classification. Expand
Introduction of Mayorella gemmifera Schaeffer, 1926 into Phylogenetic Studies of Amoebozoa
TLDR
Comparison of M. gemmifera with JJP-2003 strain revealed some differences in primary and secondary structures of their SSU rDNA sequences; nevertheless, in the authors' phylogenetic analyses, sequences of both strains clustered together and stabilized position of Mayorella in the phylogenetic tree. Expand
Expansion of the 'Reticulosphere': Diversity of Novel Branching and Network-forming Amoebae Helps to Define Variosea (Amoebozoa).
TLDR
It is shown that BNFA are phylogenetically widespread in Variosea and morphologically very variable, both within and between lineages. Expand
The twilight of Sarcodina: a molecular perspective on the polyphyletic origin of amoeboid protists
TLDR
Although the molecular data clearly indicate that the pseudopodial structures have been developed several times in the history of eukaryotes, they also show that a large diversification of amoeboid protists occurred only twice, in lineages leading to Amoebozoa and Rhizaria. Expand
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TLDR
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. Expand
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
Phylogenetic analysis of 51 Cercomonas rRNA genes shows in each previously identified major clade two very robust, highly divergent, multi-species subclades (A1, A2; B1, B2); kinetid ultrastructure of five clade A representatives by serial sections are studied. Expand
The opalozoan Apusomonas is related to the common ancestor of animals, fungi, and choanoflagellates
TLDR
P phylogenetic analysis shows that Apusomonas (the first member of the protozoan phylum Opalozoa to have its 18S rRNA gene sequenced) is indeed specifically related to the Opisthokonta; they are more closely related than any other protozoa for which sequences are available. Expand
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