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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/222744
A genome-based phylogeny for Mollusca is concordant with fossils and morphology
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Extreme morphological disparity within Mollusca has long confounded efforts to reconstruct a stable backbone phylogeny for the phylum. Familiar molluscan groups—gastropods, bivalves, and cephalopods—each represent a diverse radiation with myriad morphological, ecological, and behavioral adaptations. The phylum further encompasses many more unfamiliar experiments in animal body-plan evolution. In this work, we reconstructed the phylogeny for living Mollusca on the basis of metazoan BUSCO (Benchmarking Universal Single-Copy Orthologs) genes extracted from 77 (13 new) genomes, including multiple members of all eight classes with two high-quality genome assemblies for monoplacophorans. Our analyses confirm a phylogeny proposed from morphology and show widespread genomic variation. The flexibility of the molluscan genome likely explains both historic challenges with their genomes and their evolutionary success.
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CHEN, Zeyuan, et al. A genome-based phylogeny for Mollusca is concordant with fossils and morphology. Science. 2025. Vol. 387, num. 6737, pags. 1001-1007. ISSN 0036-8075. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/222744