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<title lang=en>Epigenetic signatures of invasive status in populations of marine invertebrates</title>
<creator>Ardura, Alba</creator>
<creator>Zaiko, Anastasija</creator>
<creator>Morán, Paloma</creator>
<creator>Planes, Serge</creator>
<creator>GARCÍA-VÁZQUEZ, Eva</creator>
<contributor>Centre de recherches insulaires et observatoire de l'environnement (CRIOBE) ; Université de Perpignan Via Domitia (UPVD) - École pratique des hautes études (EPHE) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire d'Excellence CORAIL (LabEX CORAIL) ; Institut de Recherche pour le Développement (IRD) - Université des Antilles et de la Guyane (UAG) - École des hautes études en sciences sociales (EHESS) - École pratique des hautes études (EPHE) - Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) - Université de la Réunion (UR) - Université de la Polynésie Française (UPF) - Université de Nouvelle Calédonie - Institut d'écologie et environnement</contributor>
<contributor>Coastal Research and Planning Institute ; Klaipeda University</contributor>
<contributor>Facultad de Biología ; Universidade de Vigo</contributor>
<contributor>Department of Functional Biology ; University of Oviedo</contributor>
<description>International audience</description>
<source>ISSN: 2045-2322</source>
<source>EISSN: 2045-2322</source>
<source>Scientific Reports</source>
<publisher>Nature Publishing Group</publisher>
<identifier>hal-01488962</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01488962</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01488962/document</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01488962/file/Epigenetic.pdf</identifier>
<source>https://hal-univ-perp.archives-ouvertes.fr/hal-01488962</source>
<source>Scientific Reports, Nature Publishing Group, 2017, 7 ( 42193 ), 〈10.1038/srep42193〉</source>
<identifier>DOI : 10.1038/srep42193</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1038/srep42193</relation>
<language>en</language>
<subject lang=en>Invasive species</subject>
<subject>[SDE.BE] Environmental Sciences/Biodiversity and Ecology</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<subject>[SDV.GEN.GPO] Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE]</subject>
<subject>[SDV.GEN.GA] Life Sciences [q-bio]/Genetics/Animal genetics</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Epigenetics, as a DNA signature that affects gene expression and enables rapid reaction of an organism to environmental changes, is likely involved in the process of biological invasions. DNA methylation is an epigenetic mechanism common to plants and animals for regulating gene expression. In this study we show, for the first time in any marine species, significant reduction of global methylation levels during the expansive phase of a pygmy mussel (Xenostrobus securis) recent invasion in Europe (twoyear old), while in older introductions such epigenetic signature of invasion was progressively reduced. Decreased methylation was interpreted as a rapid way of increasing phenotypic plasticity that would help invasive populations to thrive. This epigenetic signature of early invasion was stronger than the expected environmental signature of environmental stress in younger populations sampled from ports, otherwise detected in a much older population (>90 year old) of the also invasive tubewormFicopomatus enigmaticus established in similar locations. Higher epigenetic than genetic diversity found in X. securis was confirmed from F. enigmaticus samples. As reported for introduced plants and vertebrates, epigenetic variation could compensate for relatively lower genetic variation caused by founder effects. These phenomena were compared with epigenetic mechanisms involved in metastasis, as parallel processes of community (biological invasion) and organism (cancer) invasions.</description>
<date>2017</date>
</dc>
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