Na + /K + ‐ ATP ase gene duplications in clitellate annelids are associated with freshwater colonization

Autor: Michel Creuzé des Châtelliers, Scott R. Santos, Bronwyn W. Williams, Christer Erséus, Frank E. Anderson, Kevin M. Horn, Kenneth M. Halanych
Přispěvatelé: Division of Natural Sciences and Mathematics, Kentucky Wesleyan College, Department of Zoology, Southern Illinois University [Carbondale] (SIU), Research Laboratory, North Carolina Museum of Natural Sciences, Department of Biological and Environmental Sciences [Gothenburg], University of Gothenburg (GU), Molette Biology Laboratory for Environmental and Climate Change Studies, Auburn University (AU), Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA), Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE), Université Claude Bernard Lyon 1 (UCBL)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Evolutionary Biology
Journal of Evolutionary Biology, Wiley, 2019, 32 (6), pp.580-591. ⟨10.1111/jeb.13439⟩
ISSN: 1010-061X
1420-9101
DOI: 10.1111/jeb.13439⟩
Popis: Major habitat transitions, such as those from marine to freshwater habitats or from aquatic to terrestrial habitats, have occurred infrequently in animal evolution and may represent a barrier to diversification. Identifying genomic events associated with these transitions can help us better understand mechanisms that allow animals to cross these barriers and diversify in new habitats. Study of the Capitella telata and Helobdella robusta genomes allows examination of one such habitat transition (marine to freshwater) in Annelida. Initial examination of these genomes indicated that the freshwater leech H. robusta contains many more copies (12) of the sodium–potassium pump alpha-subunit (Na + /K + -ATPase) gene than does the marine polychaete C. telata (2). The sodium–potassium pump plays a key role in maintenance of cellular ionic balance and osmoregulation, and Na + /K + -ATPase duplications may have helped annelids invade and diversify in freshwater habitats. To assess whether the timing of Na + /K + -ATPase duplications coincided with the marine-to-freshwater transition in Clitellata, we used transcriptomic data from 18 annelid taxa, along with the two genomes, to infer a species phylogeny and identified Na + /K + -ATPase gene transcripts in order to infer the timing of gene duplication events using tree-based methods. The inferred timing of Na + /K + -ATPase duplication events is consistent with the timing of the initial marine-to-freshwater transition early in the history of clitellate annelids, supporting the hypothesis that gene duplications may have played a role in the annelid diversification into freshwater habitats. © 2019 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2019 European Society For Evolutionary Biology
Databáze: OpenAIRE
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