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srRNA evolution and phylogenetic relationships of the genus Naegleria (Protista: Rhizopoda).
- P. Baverstock, S. Illana, P. Christy, B. Robinson, A. Johnson
- BiologyMolecular biology and evolution
- 1 May 1989
It was shown that the semiconserved regions of the srRNA molecule evolve in a clocklike fashion and that the clock is time dependent rather than generation dependent.
A genetic approach to species criteria in the amoeba genus Naegleria using allozyme electrophoresis.
The amoeba-to-flagellate transformation test is not reliable for the diagnosis of the genus Naegleria. Description of three new Naegleria spp.
Failing to form flagellates since their isolation, even when different transformation procedures are used, are two Naegleria strains from Chile and Indonesia, which are proposed to represent new species.
Discontinuous genetic variation among mesophilic Naegleria isolates: further evidence that N. gruberi is not a single species.
- B. Robinson, P. Christy, S. J. Hayes, P. J. Dobson
- Biology, Environmental ScienceThe Journal of protozoology
- 1 November 1992
Characteristics temperature limits for growth show that the mesophilic species are ecological as well as genetic entities, most consistent with the interpretation that N. gruberi is a group of several distinct species.
A temporary flagellate (mastigote) stage in the vahlkampfiid amoeba Willaertia magna and its possible evolutionary significance.
Small subunit ribosomal RNA evolution in the genus Acanthamoeba.
- A. Johnson, R. Fielke, P. Christy, B. Robinson, P. Baverstock
- BiologyJournal of general microbiology
- 1 September 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.
On the Identity of the Amoeboflagllates Didascalus throntoni and Adelphamoeba galeacystis
- J. Jonckheere, Susan Browin, B. Robinson
- BiologyThe Journal of eukaryotic microbiology
- 1 January 1997
The results indicate that D. thorntoni does not belong to the genus Naegleria, and prove Page was right when he stated that Adelphamoeba might be a synonym of Didascalus.