Study of species diversity of viviparous monogeneans
parasitizing african cichlids: looking for a needle in a
haystack

k 2014

Study of species diversity of viviparous monogeneans parasitizing african cichlids: looking for a needle in a haystack

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

Základní údaje

Originální název

Study of species diversity of viviparous monogeneans parasitizing african cichlids: looking for a needle in a haystack

Autoři

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

Vydání

2014

Další údaje

Jazyk

angličtina

Typ výsledku

Prezentace na konferencích

Obor

10600 1.6 Biological sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/14:00073921

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova česky

Gyrodactylus diversity cichlids phylogeny new species Africa

Klíčová slova anglicky

Gyrodactylus diversity cichlids phylogeny new species Africa

Změněno: 1. 10. 2014 19:45, Mgr. Petra Zahradníčková

Anotace

V originále

The diversity of monogenean ectoparasites of Gyrodactylidae Cobbold, 1864 is well known with more than 440 described species worldwide. However, to date, gyrodactylids from the African continent has not been well-researched. In order to better understand the diversity of viviparous monogeneans parasitizing African cichlids, various species of cichlids were collected and examined during 2011-2013 from Zimbabwe, South Africa, Burundi and Democratic Republic of Congo. In addition viviparous parasites of northern African cichlids, originating from Sudan and Egypt were also included in the study. Thus material from four African riverine basins were examined, i.e. Limpopo River basin (Nwanedzi River, South Africa), Zambezi River basin (Zambezi River, Kariba and Chivero Lakes, Zimbabwe), Congo River basin (Lake Tanganyika, Burundi and Democratic Republic of Congo) and Nile River basin (Nile River, Sudan and Egypt). Viviparous monogeneans of the genus Gyrodactylus Nordmann, 1832 were recorded from a wide range of cichlid hosts, representing five different tribes. The tribes and infected host were as follows: Ectodini - Opthalmotilapia nasuta (Poll & Matthes, 1962); Eretmodini - Eretmodomus marksmithi Burgess, 2012; Haplochromini - Astatotilapia burtoni (Günther, 1894), Ctenochromis horei (Günther, 1894), Pharyngochromis acuticeps (Steindachner, 1866), Pseudocrenilabrus philander (Weber, 1987); Tropheini - Simochromis diaphragma (Günther, 1894), and Tilapiini - Oreochromis niloticus (L.), Tilapia rendalli (Boulenger, 1897), Tilapia sparrmanii (Smith, 1840), Tilapia zillii (Gervais, 1844) and Tilapia sp. Identification of parasite species based on haptoral sclerite morphometry and nuclear ribosomal DNA internal transcribed spacer (ITS) sequences identified 15 Gyrodactylus species. Only three of them are currently known to science i.e. Gyrodactylus nyanzae Paperna, 1973, Gyrodactylus sturmbaueri Vanhove, Snoeks, Volckaert & Huyse, 2011, and Gyrodactylus yacatli García-Vásquez, Hansen, Christison, Bron & Shinn, 2011. Identification of 10 undescribed Gyrodactylus species insinuates high diversity of these parasites in Africa. Based on the shape of the haptoral complex, species were divided into groups within each of them the species can be distinguished based on measurements of the haptoral sclerites and/or the shape of marginal hook sickles. The use of principal component analyses (PCA) helped to distinguish between the different Gyrodactylus species and their relative positions were plotted. Phylogenetic analyses, the maximum likelihood (ML) and Bayesian interference (BI), revealed interspecific relationship and evolutionary lineages indicating different origin of Gyrodactylus species parasitizing African cichlids. Study was financially supported by the projects P505/11/P470 and GBP505/12/G112 from the Grant Agency of the Czech Republic.

Návaznosti

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 J. LUUS-POWELL. Study of species diversity of viviparous monogeneans parasitizing african cichlids: looking for a needle in a haystack. 2014.

@proceedings{1200046,
   author = {Zahradníčková, Petra and Přikrylová, Iva and Barson, Maxwell and LuusandPowell, Wilmien J.},
   keywords = {Gyrodactylus diversity cichlids phylogeny new species Africa},
   language = {eng},
   title = {Study of species diversity of viviparous monogeneans parasitizing african cichlids: looking for a needle in a haystack},
   year = {2014}
}

TY  - CONF
ID  - 1200046
AU  - Zahradníčková, Petra - Přikrylová, Iva - Barson, Maxwell - Luus-Powell, Wilmien J.
PY  - 2014
TI  - Study of species diversity of viviparous monogeneans parasitizing african cichlids: looking for a needle in a haystack
KW  - Gyrodactylus diversity cichlids phylogeny new species Africa
N2  - The diversity of monogenean ectoparasites of Gyrodactylidae Cobbold, 1864 is well known with more than 440 described species worldwide. However, to date, gyrodactylids from the African continent has not been well-researched. In order to better understand the diversity of viviparous monogeneans parasitizing African cichlids, various species of cichlids were collected and examined during 2011-2013 from Zimbabwe, South Africa, Burundi and Democratic Republic of Congo. In addition viviparous parasites of northern African cichlids, originating from Sudan and Egypt were also included in the study. Thus material from four African riverine basins were examined, i.e. Limpopo River basin (Nwanedzi River, South Africa), Zambezi River basin (Zambezi River, Kariba and Chivero Lakes, Zimbabwe), Congo River basin (Lake Tanganyika, Burundi and Democratic Republic of Congo) and Nile River basin (Nile River, Sudan and Egypt). Viviparous monogeneans of the genus Gyrodactylus Nordmann, 1832 were recorded from a wide range of cichlid hosts, representing five different tribes. The tribes and infected host were as follows: Ectodini - Opthalmotilapia nasuta (Poll & Matthes, 1962); Eretmodini - Eretmodomus marksmithi Burgess, 2012; Haplochromini - Astatotilapia burtoni (Günther, 1894), Ctenochromis horei (Günther, 1894), Pharyngochromis acuticeps (Steindachner, 1866), Pseudocrenilabrus philander (Weber, 1987); Tropheini - Simochromis diaphragma (Günther, 1894), and Tilapiini - Oreochromis niloticus (L.), Tilapia rendalli (Boulenger, 1897), Tilapia sparrmanii (Smith, 1840), Tilapia zillii (Gervais, 1844) and Tilapia sp. Identification of parasite species based on haptoral sclerite morphometry and nuclear ribosomal DNA internal transcribed spacer (ITS) sequences identified 15 Gyrodactylus species. Only three of them are currently known to science i.e. Gyrodactylus nyanzae Paperna, 1973, Gyrodactylus sturmbaueri Vanhove, Snoeks, Volckaert & Huyse, 2011, and Gyrodactylus yacatli García-Vásquez, Hansen, Christison, Bron & Shinn, 2011. Identification of 10 undescribed Gyrodactylus species insinuates high diversity of these parasites in Africa. Based on the shape of the haptoral complex, species were divided into groups within each of them the species can be distinguished based on measurements of the haptoral sclerites and/or the shape of marginal hook sickles. The use of principal component analyses (PCA) helped to distinguish between the different Gyrodactylus species and their relative positions were plotted. Phylogenetic analyses, the maximum likelihood (ML) and Bayesian interference (BI), revealed interspecific relationship and evolutionary lineages indicating different origin of Gyrodactylus species parasitizing African cichlids. Study was financially supported by the projects P505/11/P470 and GBP505/12/G112 from the Grant Agency of the Czech Republic.
ER  -

ZAHRADNÍČKOVÁ, Petra; Iva PŘIKRYLOVÁ; Maxwell BARSON a Wilmien J. LUUS-POWELL. \textit{Study of species diversity of viviparous monogeneans parasitizing african cichlids: looking for a needle in a haystack}. 2014.

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