Hidden biodiversity in an ancient lake: phylogenetic congruence between Lake Tanganyika tropheine cichlids and their monogenean flatworm parasites

Scientific Reports
Maarten P M VanhoveTine Huyse

Abstract

The stunning diversity of cichlid fishes has greatly enhanced our understanding of speciation and radiation. Little is known about the evolution of cichlid parasites. Parasites are abundant components of biodiversity, whose diversity typically exceeds that of their hosts. In the first comprehensive phylogenetic parasitological analysis of a vertebrate radiation, we study monogenean parasites infecting tropheine cichlids from Lake Tanganyika. Monogeneans are flatworms usually infecting the body surface and gills of fishes. In contrast to many other parasites, they depend only on a single host species to complete their lifecycle. Our spatially comprehensive combined nuclear-mitochondrial DNA dataset of the parasites covering almost all tropheine host species (N = 18), reveals species-rich parasite assemblages and shows consistent host-specificity. Statistical comparisons of host and parasite phylogenies based on distance and topology-based tests demonstrate significant congruence and suggest that host-switching is rare. Molecular rate evaluation indicates that species of Cichlidogyrus probably diverged synchronically with the initial radiation of the tropheines. They further diversified through within-host speciation into an over...Continue Reading

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Citations

May 24, 2016·Zoology : Analysis of Complex Systems, ZACS·Franziska S Brunner, Christophe Eizaguirre
Sep 7, 2016·Trends in Parasitology·Maarten P M VanhoveJoost A M Raeymaekers
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Jun 27, 2018·Journal of Evolutionary Biology·Anssi KarvonenOle Seehausen
Feb 16, 2019·Journal of Mathematical Biology·Damir Hasić, Eric Tannier
Apr 9, 2019·PLoS Computational Biology·Remco BouckaertAlexei J Drummond
Sep 12, 2019·Proceedings. Biological Sciences·Brett M CulbertSigal Balshine
May 20, 2017·Scientific Reports·Ivan N BolotovSakboworn Tumpeesuwan
Mar 17, 2020·Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology·Nicollas Breda LehmannMauricio Laterça Martins

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Methods Mentioned

BETA
dissection
PCR

Software Mentioned

AxParafit
CoRe
Copycat
BEAST
HIT Suite
APE
PAUP
TreeMap
PUZZLE
RAxML

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