Global invasion genetics of two parasitic copepods infecting marine bivalves
|Author(s)||Feis Marieke E.1, 2, 7, Goedknegt M. Anouk3, 4, 8, Arzul Isabelle5, Chenuil Anne6, Den Boon Onno3, 4, Gottschalck Leo1, Kondo Yusuke2, Ohtsuka Susumu2, Shama Lisa N. S.1, Thieltges David W.3, 4, Wegner K. Mathias1, Luttikhuizen Pieternella C.3, 4|
|Affiliation(s)||1 : Alfred Wegener Inst, Coastal Ecol Sect, Helmholtz Ctr Polar & Marine Res, Wadden Sea Stn Sylt, Hafenstr 43, D-25992 List Auf Sylt, Germany.
2 : Hiroshima Univ, Grad Sch Integrated Sci Life, Hiroshima 7250024, Japan.
3 : NIOZ Royal Netherlands Inst Sea Res, Dept Coastal Syst, POB 59, NL-1790 AB Den Burg, Texel, Netherlands.
4 : Univ Utrecht, POB 59, NL-1790 AB Den Burg, Texel, Netherlands.
5 : IFREMER, Lab Genet & Pathol Mollusques Marins, Ave Mus Loup, F-17390 La Tremblade, France.
6 : Aix Marseille Univ, Univ Avignon, IMBE, CNRS,IRD, Marseille, France.
7 : Sorbonne Univ, Lab Adaptat & Diversite Milieu Marin, Stn Biol Roscoff, CNRS,DyDIV,UMR 7144, F-29688 Roscoff, France.
8 : Univ Bordeaux, UMR EPOC 5805, Stn Marine Arcachon, 2 Rue Prof Jolyet, F-33120 Arcachon, France.
|Source||Scientific Reports (2045-2322) (Nature Publishing Group), 2019-09 , Vol. 9 , N. 12730 , P. 16p.|
|Abstract||Invasive species, and especially invasive parasites, represent excellent models to study ecological and evolutionary mechanisms in the wild. To understand these processes, it is crucial to obtain more knowledge on the native range, invasion routes and invasion history of invasive parasites. We investigated the consecutive invasions of two parasitic copepods (Mytilicola intestinalis and Mytilicola orientalis) by combining an extensive literature survey covering the reported putative native regions and the present-day invaded regions with a global phylogeography of both species. The population genetic analyses based on partial COI sequences revealed significant population differentiation for M. orientalis within the native region in Japan, while introduced populations in North America and Europe could not be distinguished from the native ones. Thus, M. orientalis' invasion history resembles the genetic structure and recent spread of its principal host, the Pacific oyster, Crassostrea gigas, while M. intestinalis lacks population genetic structure and has an overall low genetic diversity. Therefore, the native origin of M. intestinalis remains unclear. With this study, we demonstrate that even highly related and biologically similar invasive species can differ in their invasion genetics. From this, we conclude that extrapolating invasion genetics dynamics from related invasive taxa may not always be possible.|