Why Williamson’s (2014) theory of hybridogenesis fails to explain the evolution of the Rhizocephala

In: Crustaceana
H. Glenner 1Marine Biodiversity, Biological Institute, University of Bergen, Thormøhlensgate 33A, N-5020 Bergen, Norway
2Center for Macroecology and Evolution, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark

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J. Lützen 3Marine Biological Section, Biological Department, University of Copenhagen, Universitetsparken 4, DK-2100 Copenhagen, Denmark

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All available biological, ultrastructural, and molecular data support the conclusion that the cirripedian suborders, Rhizocephala and Thoracica, are closely related. Williamson’s speculations (Williamson, D. I., . The origin of barnacles (Thecostraca, Cirripedia). Crustaceana, 87: 755-765) that the so-called hybridogenesis can explain how Rhizocephala evolved, rest on a selective choice of other authors’ data and an ignorance of solid facts derived from decades of comparative anatomical and molecular studies.

Toutes les données biologiques, ultrastructurales et moléculaires disponibles appuient la conclusion que les sous-ordres de Cirripèdes, Rhizocephala et Thoracica, sont étroitement apparentés. Les spéculations de Williamson (Williamson, D. I., . The origin of barnacles (Thecostraca, Cirripedia)) selon lesquelles la soit-disant hybridogenèse pourrait expliquer comment les Rhizocephala ont évolué, reposent sur un choix sélectif de données d’autres auteurs et sur une ignorance de faits solides tirés de décennies d’études moléculaires et d’anatomie comparative.

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