Structural and molecular diversity of dactylogyrids
parasitizing African characiform fishes

a 2018

Structural and molecular diversity of dactylogyrids parasitizing African characiform fishes

ČERVENKA KIČINJA, Maria Lujza; Mária SEIFERTOVÁ; Milan GELNAR a Eva ŘEHULKOVÁ

Základní údaje

Originální název

Structural and molecular diversity of dactylogyrids parasitizing African characiform fishes

Autoři

ČERVENKA KIČINJA, Maria Lujza; Mária SEIFERTOVÁ; Milan GELNAR a Eva ŘEHULKOVÁ

Vydání

2018

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

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/00216224:14310/18:00101558

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-210-9079-8

Klíčová slova anglicky

Monogenea; Africa; Characiformes; Morphology; Phylogeny

Příznaky

Mezinárodní význam

Změněno: 12. 1. 2019 16:00, Mgr. Maria Lujza Červenka Kičinja, Ph.D.

Anotace

V originále

In 2018, my research activities continue to investigate the diversity of dactylogyrids parasitizing African tetras. Herein, the most important results are briefly summarized. Morphological and molecular characterizations of seven (three new) species of Characidotrema (C. auritum n. sp., C. brevipenis, C. nursei, C. pollex n. sp., C. spinivaginus, C. vespertilio n. sp., and C. zelotes) from Brycinus nurse and B. imberi have been provided [1]. Morphological analysis confirmed that the most apparent character distinguishing species in the genus is morphology of the male copulatory organ and vagina. Observations on the haptoral sclerotized structures of these parasites by employing phase contrast microscopy revealed the presence of an accessory structure relating to the ventral anchor, a feature that improves generic diagnosis of Characidotrema. Phylogenetic analyses based on 28S rDNA sequences supported the monophyly of Characidotrema spp., and indicated a closer relationship of this genus to monogeneans parasitizing African cyprinids (Dactylogyrus spp.) and cichlids (species of Cichlidogyrus, Scutogyrus, and Onchobdella) rather than to those parasitizing catfishes (species of Quadriacanthus, Schilbetrema, and Synodontella). The overall agreement between the morphological diversification of the MCOs and molecular tree observed in our study indicates that significant phylogenetic signals for clarifying relationships among species of Characidotrema are present in characteristics of the MCO. Morphological and molecular evaluation of 16 species of Annulotrema collected from nine species of African tetras (Alestes baremoze, A. dentex, Brycinus imberi, B. nurse, Hydrocynus forskahlii, H. brevis, H. vittatus, Micralestes acutidens, and M. elongatus) revealed the presence of nine undescribed species. The obtained molecular data will be used for phylogenetic reconstruction of monogeneans parasitizing African tetras. Finally, preliminary phylogenetic analyses of monogeneans parasitizing alestids showed that Afrocleidodiscus hydrocynuous from Hydrocynus forskahlii and representatives of Annulotrema clustered together, while A. paracleidodiscus from Distichodus rostratus (Characiformes: Distichodontidae) forms separate cluster close to the Characidotrema species. Division of the both species of Afrocleidodiscus highlights the necessity of a revision of the genus [2].

Návaznosti

GBP505/12/G112, projekt VaV

Název: ECIP - Evropské centrum ichtyoparazitologie

Investor: Grantová agentura ČR, ECIP - Evropské centrum ichtyoparazitologie

Citovat

ČERVENKA KIČINJA, Maria Lujza; Mária SEIFERTOVÁ; Milan GELNAR a Eva ŘEHULKOVÁ. Structural and molecular diversity of dactylogyrids parasitizing African characiform fishes. 2018. ISBN 978-80-210-9079-8.

@proceedings{1485637,
   author = {Červenka Kičinja, Maria Lujza and Seifertová, Mária and Gelnar, Milan and Řehulková, Eva},
   keywords = {Monogenea; Africa; Characiformes; Morphology; Phylogeny},
   language = {eng},
   isbn = {978-80-210-9079-8},
   title = {Structural and molecular diversity of dactylogyrids parasitizing African characiform fishes},
   year = {2018}
}

TY  - CONF
ID  - 1485637
AU  - Červenka Kičinja, Maria Lujza - Seifertová, Mária - Gelnar, Milan - Řehulková, Eva
PY  - 2018
TI  - Structural and molecular diversity of dactylogyrids parasitizing African characiform fishes
SN  - 9788021090798
KW  - Monogenea
KW  - Africa
KW  - Characiformes
KW  - Morphology
KW  - Phylogeny
N2  - In 2018, my research activities continue to investigate the diversity of dactylogyrids parasitizing African tetras. Herein, the most important results are briefly summarized. Morphological and molecular characterizations of seven (three new) species of Characidotrema (C. auritum n. sp., C. brevipenis, C. nursei, C. pollex n. sp., C. spinivaginus, C. vespertilio n. sp., and C. zelotes) from Brycinus nurse and B. imberi have been provided [1]. Morphological analysis confirmed that the most apparent character distinguishing species in the genus is morphology of the male copulatory organ and vagina. Observations on the haptoral sclerotized structures of these parasites by employing phase contrast microscopy revealed the presence of an accessory structure relating to the ventral anchor, a feature that improves generic diagnosis of Characidotrema. Phylogenetic analyses based on 28S rDNA sequences supported the monophyly of Characidotrema spp., and indicated a closer relationship of this genus to monogeneans parasitizing African cyprinids (Dactylogyrus spp.) and cichlids (species of Cichlidogyrus, Scutogyrus, and Onchobdella) rather than to those parasitizing catfishes (species of Quadriacanthus, Schilbetrema, and Synodontella). The overall agreement between the morphological diversification of the MCOs and molecular tree observed in our study indicates that significant phylogenetic signals for clarifying relationships among species of Characidotrema are present in characteristics of the MCO. Morphological and molecular evaluation of 16 species of Annulotrema collected from nine species of African tetras (Alestes baremoze, A. dentex, Brycinus imberi, B. nurse, Hydrocynus forskahlii, H. brevis, H. vittatus, Micralestes acutidens, and M. elongatus) revealed the presence of nine undescribed species. The obtained molecular data will be used for phylogenetic reconstruction of monogeneans parasitizing African tetras. Finally, preliminary phylogenetic analyses of monogeneans parasitizing alestids showed that Afrocleidodiscus hydrocynuous from Hydrocynus forskahlii and representatives of Annulotrema clustered together, while A. paracleidodiscus from Distichodus rostratus (Characiformes: Distichodontidae) forms separate cluster close to the Characidotrema species. Division of the both species of Afrocleidodiscus highlights the necessity of a revision of the genus [2].
ER  -

ČERVENKA KIČINJA, Maria Lujza; Mária SEIFERTOVÁ; Milan GELNAR a Eva ŘEHULKOVÁ. \textit{Structural and molecular diversity of dactylogyrids parasitizing African characiform fishes}. 2018. ISBN~978-80-210-9079-8.

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