Ichthyosporea: a window into the origin of animals
Victoria Shabardina, Jennah E. Dharamshi, Patricia S. Ara, Meritxell Antó, Fernando J. Bascón, Hiroshi Suga, Wyth Marshall, Claudio Scazzocchio, Elena Casacuberta & Iñaki Ruiz-Trillo
Communications Biology volume 7, Article number: 915 (2024)
Abstract
Ichthyosporea is an underexplored group of unicellular eukaryotes closely related to animals. Thanks to their phylogenetic position, genomic content, and development through a multinucleate coenocyte reminiscent of some animal embryos, the members of Ichthyosporea are being increasingly recognized as pivotal to the study of animal origins. We delve into the existing knowledge of Ichthyosporea, identify existing gaps and discuss their life cycles, genomic insights, development, and potential to be model organisms. We also discuss the underestimated diversity of ichthyosporeans, based on new environmental data analyses. This review will be an essential resource for researchers venturing into the study of ichthyosporeans.
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