J 2016

Reduced host-specificity in a parasite infecting non-littoral Lake Tanganyika cichlids evidenced by intraspecific morphological and genetic diversity.

KMENTOVÁ, Nikol, Milan GELNAR, Monika MENDLOVÁ, Maarten VAN STEENBERGE, Stephan KOBLMÜLLER et. al.

Základní údaje

Originální název

Reduced host-specificity in a parasite infecting non-littoral Lake Tanganyika cichlids evidenced by intraspecific morphological and genetic diversity.

Autoři

KMENTOVÁ, Nikol (203 Česká republika, garant, domácí), Milan GELNAR (203 Česká republika, domácí), Monika MENDLOVÁ (203 Česká republika, domácí), Maarten VAN STEENBERGE (56 Belgie), Stephan KOBLMÜLLER (40 Rakousko) a Maarten Pieterjan VANHOVE (56 Belgie, domácí)

Vydání

Scientific Reports, London, Nature Publishing Group, 2016, 2045-2322

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.259

Kód RIV

RIV/00216224:14310/16:00088562

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000390268100001

Klíčová slova anglicky

Monogenea; host specificity; Bathybates; Hemibates

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2018 10:09, Maarten Pieterjan Vanhove, Ph.D.

Anotace

V originále

Lake Tanganyika is well-known for its high species-richness and rapid radiation processes. Its assemblage of cichlid fishes recently gained momentum as a framework to study parasite ecology and evolution. It offers a rare chance to investigate the influence of a deepwater lifestyle in a freshwater fish-parasite system. Our study represents the first investigation of parasite intraspecific genetic structure related to host specificity in the lake. It focused on the monogenean flatworm Cichlidogyrus casuarinus infecting deepwater cichlids belonging to Bathybates and Hemibates. Morphological examination of C. casuarinus had previously suggested a broad host range, while the lake’s other Cichlidogyrus species are usually host specific. However, ongoing speciation or cryptic diversity could not be excluded. To distinguish between these hypotheses, we analysed intraspecific diversity of C. casuarinus. Monogeneans from nearly all representatives of the host genera were examined using morphometrics, geomorphometrics and genetics. We confirmed the low host-specificity of C. casuarinus based on morphology and nuclear DNA. Yet, intraspecific variation of sclerotized structures was observed. Nevertheless, the highly variable mitochondrial DNA indicated recent population expansion, but no ongoing parasite speciation, confirming, for the first time in freshwater, reduced parasite host specificity in the deepwater realm, probably an adaptation to low host availability.

Návaznosti

GBP505/12/G112, projekt VaV
Název: ECIP - Evropské centrum ichtyoparazitologie
Investor: Grantová agentura ČR, ECIP - Evropské centrum ichtyoparazitologie