Amoebozoan testate amoebae illuminate the diversity of heterotrophs and the complexity of ecosystems throughout geological time

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorMississippi State University-
Autor(es): dc.contributorTexas Tech University-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Cologne-
Autor(es): dc.contributorDalhousie University-
Autor(es): dc.contributorUniversity of Victoria-
Autor(es): dc.contributorUniversity of Applied Sciences and Arts Western Switzerland-
Autor(es): dc.creatorPorfirio-Sousa, Alfredo L.-
Autor(es): dc.creatorTice, Alexander K.-
Autor(es): dc.creatorMorais, Luana-
Autor(es): dc.creatorRibeiro, Giulia M.-
Autor(es): dc.creatorBlandenier, Quentin-
Autor(es): dc.creatorDumack, Kenneth-
Autor(es): dc.creatorEglit, Yana-
Autor(es): dc.creatorFry, Nicholas W.-
Autor(es): dc.creatorSouza, Maria Beatriz Gomes E.-
Autor(es): dc.creatorHenderson, Tristan C.-
Autor(es): dc.creatorKleitz-Singleton, Felicity-
Autor(es): dc.creatorSinger, David-
Autor(es): dc.creatorBrown, Matthew W.-
Autor(es): dc.creatorLahr, Daniel J.G.-
Data de aceite: dc.date.accessioned2025-08-21T22:43:28Z-
Data de disponibilização: dc.date.available2025-08-21T22:43:28Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-07-23-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1073/pnas.2319628121-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300870-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300870-
Descrição: dc.descriptionHeterotrophic protists are vital in Earth’s ecosystems, influencing carbon and nutrient cycles and occupying key positions in food webs as microbial predators. Fossils and molecular data suggest the emergence of predatory microeukaryotes and the transition to a eukaryote-rich marine environment by 800 million years ago (Ma). Neoproterozoic vase-shaped microfossils (VSMs) linked to Arcellinida testate amoebae represent the oldest evidence of heterotrophic microeukaryotes. This study explores the phylogenetic relationship and divergence times of modern Arcellinida and related taxa using a relaxed molecular clock approach. We estimate the origin of nodes leading to extant members of the Arcellinida Order to have happened during the latest Mesoproterozoic and Neoproterozoic (1054 to 661 Ma), while the divergence of extant infraorders postdates the Silurian. Our results demonstrate that at least one major heterotrophic eukaryote lineage originated during the Neoproterozoic. A putative radiation of eukaryotic groups (e.g., Arcellinida) during the early-Neoproterozoic sustained by favorable ecological and environmental conditions may have contributed to eukaryotic life endurance during the Cryogenian severe ice ages. Moreover, we infer that Arcellinida most likely already inhabited terrestrial habitats during the Neoproterozoic, coexisting with terrestrial Fungi and green algae, before land plant radiation. The most recent extant Arcellinida groups diverged during the Silurian Period, alongside other taxa within Fungi and flowering plants. These findings shed light on heterotrophic microeukaryotes’ evolutionary history and ecological significance in Earth’s ecosystems, using testate amoebae as a proxy.-
Descrição: dc.descriptionDepartment of Zoology Institute of Biosciences University of São Paulo-
Descrição: dc.descriptionDepartment of Biological Sciences Mississippi State University-
Descrição: dc.descriptionDepartment of Biological Sciences Texas Tech University-
Descrição: dc.descriptionDepartment of Geophysics Institute of Astronomy Geophysics and Atmospheric Sciences University of São Paulo-
Descrição: dc.descriptionDepartment of Applied Geology Institute of Geosciences and Exact Sciences São Paulo State University-
Descrição: dc.descriptionDepartment of Terrestrial Ecology Institute of Zoology University of Cologne-
Descrição: dc.descriptionDepartment of Biology Dalhousie University-
Descrição: dc.descriptionDepartment of Biology Institute for Comparative Genomics Dalhousie University-
Descrição: dc.descriptionDepartment of Biology University of Victoria-
Descrição: dc.descriptionSoil Science and Environment Group Changins Haute école spécialisée de Suisse occidentale University of Applied Sciences and Arts Western Switzerland-
Descrição: dc.descriptionDepartment of Biological Sciences Institute for Genomics Biocomputing & Biotechnology Mississippi State University-
Descrição: dc.descriptionDepartment of Applied Geology Institute of Geosciences and Exact Sciences São Paulo State University-
Idioma: dc.languageen-
Relação: dc.relationProceedings of the National Academy of Sciences of the United States of America-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectancestral state reconstruction-
Palavras-chave: dc.subjectArcellinida-
Palavras-chave: dc.subjecteukaryotic evolution-
Palavras-chave: dc.subjectphylogenomics-
Palavras-chave: dc.subjectvase-shaped microfossils-
Título: dc.titleAmoebozoan testate amoebae illuminate the diversity of heterotrophs and the complexity of ecosystems throughout geological time-
Tipo de arquivo: dc.typelivro digital-
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