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González-Miguéns, R., Todorov, M., Blandenier, Q., Duckert, C., Porfirio-Sousa, A. L., Ribeiro, G. M., … Lara, E. (2022, October). Deconstructing Difflugia: The tangled evolution of lobose testate amoebae shells (Amoebozoa: Arcellinida) illustrates the importance of convergent evolution in protist phylogeny. Molecular Phylogenetics and Evolution. Elsevier BV. http://doi.org/10.1016/j.ympev.2022.107557

Título:	Deconstructing Difflugia: The tangled evolution of lobose testate amoebae shells (Amoebozoa: Arcellinida) illustrates the importance of convergent evolution in protist phylogeny
Autor:	González-Miguéns, Rubén CSIC ORCID;Todorov, Milcho;Blandenier, Quentin;Duckert, Clément;Porfirio-Sousa, Alfredo L.;Ribeiro, Giulia M.;Ramos, Diana CSIC;Lahr, Daniel J.G.;Buckley, David CSIC ORCID;Enrique Lara
Financiadores:	Ministerio de Ciencia, Innovación y Universidades (España)
Palabras clave:	Arcellinida Convergent evolution Mitochondrial editing Phylomorphospace Tangled evolution Testate amoeba
Fecha de publicación:	2022
Editor:	Academic Press Elsevier
Citación:	Molecular Phylogenetics and Evolution 175 (2022)
Resumen:	Protists, the micro-eukaryotes that are neither plants, animals nor fungi build up the greatest part of eukaryotic diversity on Earth. Yet, their evolutionary histories and patterns are still mostly ignored, and their complexity overlooked. Protists are often assumed to keep stable morphologies for long periods of time (morphological stasis). In this work, we test this paradigm taking Arcellinida testate amoebae as a model. We build a taxon-rich phylogeny based on two mitochondrial (COI and NADH) and one nuclear (SSU) gene, and reconstruct morphological evolution among clades. In addition, we prove the existence of mitochondrial mRNA editing for the COI gene. The trees show a lack of conservatism of shell outlines within the main clades, as well as a widespread occurrence of morphological convergences between far-related taxa. Our results refute, therefore, a widespread morphological stasis, which may be an artefact resulting from low taxon coverage. As a corollary, we also revise the groups systematics, notably by emending the large and highly polyphyletic genus Difflugia. These results lead, amongst others, to the erection of a new infraorder Cylindrothecina, as well as two new genera Cylindrifflugia and Golemanskia.
Versión del editor:	http://dx.doi.org/10.1016/j.ympev.2022.107557
URI:	http://hdl.handle.net/10261/281619
DOI:	10.1016/j.ympev.2022.107557
Identificadores:	doi: 10.1016/j.ympev.2022.107557 issn: 1095-9513
Licencia de uso:	https://creativecommons.org/licenses/by-nc-nd/4.0/
Aparece en las colecciones:	(RJB) Artículos