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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...
Science. 2025 Feb 28;387(6737):1001-1007. doi: 10.1126/science.ads0215. Epub 2025 Feb 27.
ABSTRACT
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.
PMID:40014700 | DOI:10.1126/science.ads0215
Zeyuan Chen, J Antonio Baeza, Chong Chen, Maria Teresa Gonzalez, Vanessa Liz González, Carola Greve, Kevin M Kocot, Pedro Martinez Arbizu, Juan Moles, Tilman Schell, Enrico Schwabe, Jin Sun, Nur Leena W S Wong, Meghan Yap-Chiongco, Julia D Sigwart
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Science. 2025 Feb 28;387(6737):1001-1007. doi: 10.1126/science.ads0215. Epub 2025 Feb 27.
ABSTRACT
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.
PMID:40014700 | DOI:10.1126/science.ads0215
Zeyuan Chen, J Antonio Baeza, Chong Chen, Maria Teresa Gonzalez, Vanessa Liz González, Carola Greve, Kevin M Kocot, Pedro Martinez Arbizu, Juan Moles, Tilman Schell, Enrico Schwabe, Jin Sun, Nur Leena W S Wong, Meghan Yap-Chiongco, Julia D Sigwart
Visit Publication page...
