The diversity of insect and plant trypanosomatids: molecular (PCR) and morphology data
1998
Podlipaev, Sergei A. | Frolov, A. | Bulat, S. | Banuls, A.L. | Dollet, Michel
The most unreliable part in the taxonomic system of the trypanosomatids is the domain of trypanosomatids from insects and plants. The relationships within insect trypanosomatids are still obscure. Twenty-two isolates from insects (both reference strains and recent isolates) and four isolates from plants were, investigated by RAPD, UP-PCR and cross dot-blot hybridization of UP-PCR products. Ultrastructure and some additional characters (polymorphism of colonies on solid medium, DNA content by flow cytometry etc.) were also examined. It was concluded that: I. The main clusters on dendrograms derived from PCR are supported by ultrastructural data; 2. Leptomonas-like isolates are very heterogeneous by all methods used thus confirming the view of Leptomonas as an artificial group; 3. The number of current genera of trypanosomatids is not enough to demonstrate the real diversity of these parasites and new genera have to be established. (Résumé d'auteur)
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