Affiliation:
1. Komarov Botanical Institute of the Russian Academy of Sciences
2. Saint Petersburg State Chemical and Pharmaceutical University
Abstract
At the end of 2022, after the death of T. Cavalier-Smith, his fundamental synthesis under the title “Ciliary transition zone evolution and the root of the eukaryote tree: implications for opisthokont origin and classification of kingdoms Protozoa, Plantae, and Fungi” was published on the “Protoplasma” pages. This work highlights the organization of the transition zone of the eukaryotic flagellum and provides a new author’s system for this domain. Since the analysis of this heuristically important paper was not included in any memorial essay dedicated to Cavalier-Smith published in 2021–2022, this writing is dedicated to attempt of such an analysis. In addition, a glossary is provided containing specific terms introduced by Cavalier-Smith, which will help to better navigate the theoretical heritage of this scientist.