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@proceedings{1313804,
author = {Kmentová, Nikol and Gelnar, Milan and Mendlová, Monika and Van Steenberge, Maarten and Koblmüller, Stephan and Vanhove, Maarten Pieterjan},
booktitle = {9th International Symposium on Fish Parasites},
keywords = {Cichlidogyrus; morphometric; geomorphometrics; genetic analyses; demographic history; phenotypic plasticity},
language = {eng},
title = {MONOGENEA IN DEEPWATER CICHLIDS: DECREASE IN HOST SPECIFICITY OR ONGOING SPECIATION?},
year = {2015}
}
TY - CONF
ID - 1313804
AU - Kmentová, Nikol - Gelnar, Milan - Mendlová, Monika - Van Steenberge, Maarten - Koblmüller, Stephan - Vanhove, Maarten Pieterjan
PY - 2015
TI - MONOGENEA IN DEEPWATER CICHLIDS: DECREASE IN HOST SPECIFICITY OR ONGOING SPECIATION?
KW - Cichlidogyrus
KW - morphometric
KW - geomorphometrics
KW - genetic analyses
KW - demographic history
KW - phenotypic plasticity
N2 - Lake Tanganyika contains unique species flocks of vertebrate and invertebrate taxa and harbours the most diverse cichlid species assemblage of all African lakes. This makes it an unrivalled study area in the field of biodiversity and investigations of parasite evolution processes and mechanisms. Whereas in littoral Tanganyika cichlids the hostspecificity of Cichlidogyrus species (Monogenea, Dactylogyridae) is relatively strong, a previous study indicates reduction of this specificity in deepwater habitats. In our study we examined and analysed monogeneans occurring in deepwater cichlids from three different tribes (Bathybatini, Trematocarini, Benthochromini). Samples originated from many localities throughout the lake. Hypotheses were tested by three different techniques including morphometrics, geomorphometrics and genetic characterization using multivariate statistical approaches. We confirmed the reduction of host-specifity of Cichlidogyrus casuarinus in the deepwater realm; this parasite is widespread throughout the tribe Bathybatini. On the other hand, there is evident intraspecific variation in parasite sclerotized structures influenced by host preference. Since intraspecific genetic variation is independent from the host species, this pattern seems to be caused by phenotypic changes during ontogenetic development. Moreover, analyses of parasite demographic history on the basis of COI sequences indicate recent population increase of C. casuarinus.
ER -
KMENTOVÁ, Nikol, Milan GELNAR, Monika MENDLOVÁ, Maarten VAN STEENBERGE, Stephan KOBLMÜLLER a Maarten Pieterjan VANHOVE. MONOGENEA IN DEEPWATER CICHLIDS: DECREASE IN HOST SPECIFICITY OR ONGOING SPECIATION? In \textit{9th International Symposium on Fish Parasites}. 2015.
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