Molecular and morphological phylogeny of host-specific
Dactylogyrus parasites (Monogenea) sheds new light on the
puzzling Middle Eastern origin of European and African lineages

J 2021

Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages

BENOVICS, Michal, Farshad NEJAT PASHAKI, Asghar ABDOLI and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ

Basic information

Original name

Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages

Authors

BENOVICS, Michal (703 Slovakia, guarantor, belonging to the institution), Farshad NEJAT PASHAKI (364 Islamic Republic of Iran, belonging to the institution), Asghar ABDOLI and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ (203 Czech Republic, belonging to the institution)

Edition

Parasites and Vectors, BioMed Central Ltd, 2021, 1756-3305

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30310 Parasitology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 4.047

RIV identification code

RIV/00216224:14310/21:00119178

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1186/s13071-021-04863-7

UT WoS

000677616800002

Keywords in English

Parasites; Platyhelminthes; Phylogeography; Historical dispersion; Cyprinoidei

Abstract

V originále

Background: Freshwater fauna of the Middle East encompass elements shared with three continents-Africa, Asia, and Europe-and the Middle East is, therefore, considered a historical geographic crossroad between these three regions. Even though various dispersion scenarios have been proposed to explain the current distribution of cyprinids in the peri-Mediterranean, all of them congruently suggest an Asian origin for this group. Herein, we investigated the proposed scenarios using monogenean parasites of the genus Dactylogyrus, which is host-specific to cyprinoid fishes. Methods: A total of 48 Dactylogyrus species parasitizing cyprinids belonging to seven genera were used for molecular phylogenetic reconstruction. Taxonomically important morphological features, i.e., sclerotized elements of the attachment organ, were further evaluated to resolve ambiguous relationships between individual phylogenetic lineages. For 37 species, sequences of partial genes coding 18S and 28S rRNA, and the ITS1 region were retrieved from GenBank. Ten Dactylogyrus species collected from Middle Eastern cyprinoids and D. falciformis were de novo sequenced for the aforementioned molecular markers. Results: The phylogenetic reconstruction divided all investigated Dactylogyrus species into four phylogenetic clades. The first one encompassed species with the"varicorhini"type of haptoral ventral bar with a putative origin linked to the historical dispersion of cyprinids via the North African coastline. The second Glade included the majority of the investigated species parasitizing various phylogenetically divergent cyprinid hosts. The morphological and molecular data suggest the ancestral diversification of the species of this Glade into two groups: (1) the group possessing the haptoral ventral bar of the "cornu" type, and (2) the group possessing the "wunderi"type. Dactylogyrus diversification apparently occurred in the Middle East, which is indicated by the presence of species with all morphotypes in the region. The last two clades included species parasitizing cyprinids with an East Asian origin, and species possessing the "magnihamatus"type of ventral bar. Conclusions: The molecular data suggest that some morphological characters of host-specific parasites may undergo convergent evolution in the divergent lineages, and therefore, to fully resolve the phylogenetic relationships among host-specific parasites, an integrative approach combining morphological and molecular data is still needed. In addition, our study indicates that parasite diversity in many regions is still under-explored, and thus we highlight the importance of studies of host-associated parasites, especially in the context of freshwater fish biogeography.

Links

GA20-13539S, research and development project

Name: Paraziti odhalují historické a součastné kontakty kaprovitých hostitelů: role Blízkého východu v biogeografii západního Palearktu

Investor: Czech Science Foundation

Citovat

BENOVICS, Michal, Farshad NEJAT PASHAKI, Asghar ABDOLI and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ. Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages. Parasites and Vectors. BioMed Central Ltd, 2021, vol. 14, No 1, p. "372", 15 pp. ISSN 1756-3305. Available from: https://dx.doi.org/10.1186/s13071-021-04863-7.

@article{1789484,
   author = {Benovics, Michal and Nejat Pashaki, Farshad and Abdoli, Asghar and Vetešníková Šimková, Andrea},
   article_number = {1},
   doi = {http://dx.doi.org/10.1186/s13071-021-04863-7},
   keywords = {Parasites; Platyhelminthes; Phylogeography; Historical dispersion; Cyprinoidei},
   language = {eng},
   issn = {1756-3305},
   journal = {Parasites and Vectors},
   title = {Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages},
   url = {https://doi.org/10.1186/s13071-021-04863-7},
   volume = {14},
   year = {2021}
}

TY  - JOUR
ID  - 1789484
AU  - Benovics, Michal - Nejat Pashaki, Farshad - Abdoli, Asghar - Vetešníková Šimková, Andrea
PY  - 2021
TI  - Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages
JF  - Parasites and Vectors
VL  - 14
IS  - 1
SP  - "372"
EP  - "372"
PB  - BioMed Central Ltd
SN  - 17563305
KW  - Parasites
KW  - Platyhelminthes
KW  - Phylogeography
KW  - Historical dispersion
KW  - Cyprinoidei
UR  - https://doi.org/10.1186/s13071-021-04863-7
N2  - Background: Freshwater fauna of the Middle East encompass elements shared with three continents-Africa, Asia, and Europe-and the Middle East is, therefore, considered a historical geographic crossroad between these three regions. Even though various dispersion scenarios have been proposed to explain the current distribution of cyprinids in the peri-Mediterranean, all of them congruently suggest an Asian origin for this group. Herein, we investigated the proposed scenarios using monogenean parasites of the genus Dactylogyrus, which is host-specific to cyprinoid fishes. Methods: A total of 48 Dactylogyrus species parasitizing cyprinids belonging to seven genera were used for molecular phylogenetic reconstruction. Taxonomically important morphological features, i.e., sclerotized elements of the attachment organ, were further evaluated to resolve ambiguous relationships between individual phylogenetic lineages. For 37 species, sequences of partial genes coding 18S and 28S rRNA, and the ITS1 region were retrieved from GenBank. Ten Dactylogyrus species collected from Middle Eastern cyprinoids and D. falciformis were de novo sequenced for the aforementioned molecular markers. Results: The phylogenetic reconstruction divided all investigated Dactylogyrus species into four phylogenetic clades. The first one encompassed species with the"varicorhini"type of haptoral ventral bar with a putative origin linked to the historical dispersion of cyprinids via the North African coastline. The second Glade included the majority of the investigated species parasitizing various phylogenetically divergent cyprinid hosts. The morphological and molecular data suggest the ancestral diversification of the species of this Glade into two groups: (1) the group possessing the haptoral ventral bar of the "cornu" type, and (2) the group possessing the "wunderi"type. Dactylogyrus diversification apparently occurred in the Middle East, which is indicated by the presence of species with all morphotypes in the region. The last two clades included species parasitizing cyprinids with an East Asian origin, and species possessing the "magnihamatus"type of ventral bar. Conclusions: The molecular data suggest that some morphological characters of host-specific parasites may undergo convergent evolution in the divergent lineages, and therefore, to fully resolve the phylogenetic relationships among host-specific parasites, an integrative approach combining morphological and molecular data is still needed. In addition, our study indicates that parasite diversity in many regions is still under-explored, and thus we highlight the importance of studies of host-associated parasites, especially in the context of freshwater fish biogeography.
ER  -

BENOVICS, Michal, Farshad NEJAT PASHAKI, Asghar ABDOLI and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ. Molecular and morphological phylogeny of host-specific Dactylogyrus parasites (Monogenea) sheds new light on the puzzling Middle Eastern origin of European and African lineages. \textit{Parasites and Vectors}. BioMed Central Ltd, 2021, vol.~14, No~1, p.~''372'', 15 pp. ISSN~1756-3305. Available from: https://dx.doi.org/10.1186/s13071-021-04863-7.

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