Ultrastructural description of Breviata anathema, n. gen., n. sp., the organism previously studied as "Mastigamoeba invertens".

摘要: An understanding of large-scale eukaryotic evolution is beginning to crystallise, as molecular and morphological data demonstrate that eukaryotes fall into six major groups. However, there are several taxa which the affinities yet be resolved, for only either or data. One these amoeboid flagellate Mastigamoeba invertens. This organism was originally misidentified studied a pelobiont using We present its first light microscopical ultrastructural characterisation. it does not show amoebozoan pelobionts, because unlike has double basal body two flagellar roots, classical Golgi stack, large branching membrane-bound organelle. Phylogenetic analyses small subunit ribosomal RNA suggest an affinity with apusomonads, when covariotide correction rate heterogeneity used. previous results have been subject artefacts from insufficient heterogeneity. propose new name taxon, Breviata anathema; unranked, apomorphy-based "Breviates" close relatives.