Gyrodactylus parasites on african cichlids: A view on species
diversity, distribution, interspecific relationship and
ecological patterns

k 2015

Gyrodactylus parasites on african cichlids: A view on species diversity, distribution, interspecific relationship and ecological patterns

ZAHRADNÍČKOVÁ, Petra; Iva PŘIKRYLOVÁ; Maxwell BARSON a Wilmien LUUS-POWELL

Základní údaje

Originální název

Gyrodactylus parasites on african cichlids: A view on species diversity, distribution, interspecific relationship and ecological patterns

Autoři

ZAHRADNÍČKOVÁ, Petra; Iva PŘIKRYLOVÁ; Maxwell BARSON a Wilmien LUUS-POWELL

Vydání

2015

Další údaje

Jazyk

angličtina

Typ výsledku

Prezentace na konferencích

Obor

10600 1.6 Biological sciences

Stát vydavatele

Španělsko

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/15:00081113

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Gyrodactylus diversity cichlids phylogeny Africa

Změněno: 15. 10. 2015 08:26, Mgr. Petra Zahradníčková

Anotace

V originále

Gyrodactylus von Nordmann, 1832 (Monogenea:Gyrodactylidae) includes highly diverse ubiquitous viviparous monogeneans. These ectoparasites feed on mucus and epithelial cells of host fishes that can induce hyperplasia of affected tissues and increase the potential of subsequent secondary infections. To date, 33 Gyrodactylus species from hosts originating from nine host families have been described in Africa, but at least two species should be regarded as invalid. The present study summarizes ongoing research on Gyrodactylus species parasitizing African cichlids with emphasis on its diversity using an integrative approach (molecular sequences supported by morphometrical analysis), distribution and ecological patterns in the host-parasite system taking into account diverse environmental factors. Our findings of 10 undescribed Gyrodactylus species on cichlid hosts in different part of Africa significantly extend the knowledge on these parasites in terms of species richness and distribution. The observed “diversity” of Gyrodactylus species on cichlids differs considerably between the host species. The highest number of species was observed from the invasive Oreochromis niloticus and commonly widespread Pseudocrenilabrus philander. The overlap in theirs habitats and distribution together with artificial spreading by humans undoubtedly contributed to the current situation. The phylogenetic analyses resulted in the clustering Gyrodactylus species sharing similarities in the morphological type of the hard parts of attachment organs. Species of one morpho-group can parasitize cichlids species of up to 5 tribes, and to date we have found Gyrodactylus species on cichlid hosts of 7 tribes. Our results show clear evidence for intensive host-switching in this Gyrodactylus-cichlids system.

Návaznosti

GBP505/12/G112, projekt VaV

Název: ECIP - Evropské centrum ichtyoparazitologie

Investor: Grantová agentura ČR, ECIP - Evropské centrum ichtyoparazitologie

GPP505/11/P470, projekt VaV

Název: Afričtí gyrodaktylové ? bílé místo na mapě dosavadních poznatků: pátrání po diversitě monogeneí a jejich fylogenetických vztazích

Investor: Grantová agentura ČR, Afričtí gyrodaktylové - bílé místo na mapě dosavadních poznatků: pátrání po diverzitě monogeneí a jejich fylogenetických vztazích

Citovat

ZAHRADNÍČKOVÁ, Petra; Iva PŘIKRYLOVÁ; Maxwell BARSON a Wilmien LUUS-POWELL. Gyrodactylus parasites on african cichlids: A view on species diversity, distribution, interspecific relationship and ecological patterns. 2015.

@proceedings{1313910,
   author = {Zahradníčková, Petra and Přikrylová, Iva and Barson, Maxwell and LuusandPowell, Wilmien},
   keywords = {Gyrodactylus diversity cichlids phylogeny Africa},
   language = {eng},
   title = {Gyrodactylus parasites on african cichlids: A view on species diversity, distribution, interspecific relationship and ecological patterns},
   year = {2015}
}

TY  - CONF
ID  - 1313910
AU  - Zahradníčková, Petra - Přikrylová, Iva - Barson, Maxwell - Luus-Powell, Wilmien
PY  - 2015
TI  - Gyrodactylus parasites on african cichlids: A view on species diversity, distribution, interspecific relationship and ecological patterns
KW  - Gyrodactylus diversity cichlids phylogeny Africa
N2  - Gyrodactylus von Nordmann, 1832 (Monogenea:Gyrodactylidae) includes highly diverse ubiquitous viviparous monogeneans. These ectoparasites feed on mucus and epithelial cells of host fishes that can induce hyperplasia of affected tissues and increase the potential of subsequent secondary infections. To date, 33 Gyrodactylus species from hosts originating from nine host families have been described in Africa, but at least two species should be regarded as invalid. The present study summarizes ongoing research on Gyrodactylus species parasitizing African cichlids with emphasis on its diversity using an integrative approach (molecular sequences supported by morphometrical analysis), distribution and ecological patterns in the host-parasite system taking into account diverse environmental factors. Our findings of 10 undescribed Gyrodactylus species on cichlid hosts in different part of Africa significantly extend the knowledge on these parasites in terms of species richness and distribution. The observed “diversity” of Gyrodactylus species on cichlids differs considerably between the host species. The highest number of species was observed from the invasive Oreochromis niloticus and commonly widespread Pseudocrenilabrus philander. The overlap in theirs habitats and distribution together with artificial spreading by humans undoubtedly contributed to the current situation. The phylogenetic analyses resulted in the clustering Gyrodactylus species sharing similarities in the morphological type of the hard parts of attachment organs. Species of one morpho-group can parasitize cichlids species of up to 5 tribes, and to date we have found Gyrodactylus species on cichlid hosts of 7 tribes. Our results show clear evidence for intensive host-switching in this Gyrodactylus-cichlids system.
ER  -

ZAHRADNÍČKOVÁ, Petra; Iva PŘIKRYLOVÁ; Maxwell BARSON a Wilmien LUUS-POWELL. \textit{Gyrodactylus parasites on african cichlids: A view on species diversity, distribution, interspecific relationship and ecological patterns}. 2015.

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