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2024-12

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cc-by (c) Vidal-Miralles, Jose et al., 2024
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/220811

Between sea angels and butterflies: a global phylogeny of pelagic pteropod molluscs

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https://doi.org/10.1016/j.ympev.2024.108183

Abstract

Pteropods, holoplanktonic gastropods, play pivotal roles in marine ecosystems as integral components of food webs and carbon cycling. With global change threatening pelagic ecosystem equilibrium, conserving pteropod biodiversity is paramount. Here, we present the most extensive phylogenetic study of the order Pteropoda to date, utilizing a complete mitogenome phylogeny to support the suppression of Thecosomata, thus demonstrating the lack of relationship between Pseudothecosomata and Euthecosomata. Through multilocus Sanger-based taxon sampling with 411 specimens (92 newly sequenced), representing nearly 100 species (out of 163 valid) from various oceans, we elucidate robust support for higher taxonomic rankings. Despite strong support, relationships between the major groups Gymnosomata, Pseudothecosomata, and Euthecosomata remain contentious. Our study addresses unresolved taxonomic questions, identifying cryptic species complexes across vast biogeographic areas, and offering unprecedented insights into pteropod diversity. We shed light on several open questions in pteropod systematics, proposing the reclassification of L. antarctica stat. rest. and elucidating the position of Thliptodon, Heliconoididae, and Thieleidae. This systematic review enhances our understanding of pteropod diversity and underscores the urgency of conservation efforts in the face of changing oceanic conditions.

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Gastròpodes, Taxonomia zoològica, Biodiversitat

Subject (English)

Gastropods, Zoological taxonomy, Biodiversity

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Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
Articles publicats en revistes (Institut de Recerca de la Biodiversitat (IRBio))

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VIDAL MIRALLES, Jose, et al. Between sea angels and butterflies: a global phylogeny of pelagic pteropod molluscs. Molecular Phylogenetics and Evolution. 2024. Vol. 201, num. 1-12. ISSN 1055-7903. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/220811

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