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URN: urn:nbn:de:swb:90-463784
Originalveröffentlichung
DOI: 10.1186/s12983-014-0074-9
Web of Science
Zitationen: 4

Rapid evolution of Anguillicola crassus in Europe: species diagnostic traits are plastic and evolutionarily labile

Weclawski, U.; Heitlinger, E.G.; Baust, T.; Klar, B.; Petney, T.; Han, Y.S.; Taraschewski, H.

Abstract:
Background

Since its introduction from Taiwan to Europe around 1980, Anguillicola crassus, a natural parasite of the Japanese eel (Anguilla japonica), has acquired the European eel (Anguilla anguilla) as a novel definitive host. In this host the nematode differs noticeably in its body mass and reproductive capacity from its Asian conspecifics. We conducted a common garden experiment under a reciprocal transplant design to investigate whether differences in species-diagnostic morphological traits exist between two European and one Asian population of A. crassus and if yes whether these have a genetically fixed component.

Results

We found that worms from Germany, Poland and Taiwan differ in the size and shape of their body, oesophagus and buccal capsule. These changes are induced by both phenotypic plasticity and genetic divergence: in the European eel, nematodes from Europe as well as from Taiwan responded plastically with larger body and oesophagus dimensions compared to infections in the Japanese eel. Interestingly, the oesophagus simultaneously shows a high degree of genetically based changes being largest in the Polish s ... mehr


Zugehörige Institution(en) am KIT Zoologisches Institut (ZOO)
Publikationstyp Zeitschriftenaufsatz
Jahr 2014
Sprache Englisch
Identifikator ISSN: 1742-9994
KITopen ID: 1000046378
Erschienen in Frontiers in Zoology
Band 11
Heft 74
Seiten 1-9
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagworte Anguillicola crassus; Anguillicoloides; Introduction; Biological invasion; Host switch; Rapid evolution; Genetic divergence; Phenotypic plasticity; Evolutionary labile traits
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