Molecular characterization of three species belongs to the Allocreadioidea, Hemiuroidea and Plagiorchioidea (Platyhelminthes: Trematoda) infecting freshwater fishes in India

Chaudhary, Alka; Mukut, S.; Singh, Hridaya Shanker

doi:10.1515/helmin-2016-0039

Cited by 10 publications

(3 citation statements)

References 17 publications

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“…n. in the ingroup, may support the speculated origin of the group in the south of the Far East (Manter 1963, Vainutis 2020. Nevertheless, the need for additional molecular study of this group is exemplified by the exclusion of sequence KX344072 (Chaudhary et al 2016) in the current work. It was designated as Allocreadium handiai Pande, 1937 but does not relate to oth-…”

Section: Discussionmentioning

confidence: 72%

Morphological and molecular description of Allocreadium apokryfi sp. n. (Digenea: Allocreadiidae) from native Labeobarbus aeneus (Cyprinidae) in South Africa, including notes on its biology, evolutionary history and an updated key of African Allocreadium

et al. 2021

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Adult trematodes of Allocreadium Looss, 1900 (Digenea) infect the intestine of mostly freshwater fishes in Asia, Europe, Africa and the Americas. During routine parasitological surveys in the Vaal River system, adult trematodes were collected from the intestine of smallmouth yellowfish, Labeobarbus aeneus (Burchell). The trematodes were confirmed to represent a member of Allocreadium and did not match any existing taxon. Therefore, they are described as a new species, Allocreadium apokryfi sp. n. The morphology of the new species most closely resembles that of Allocreadium aswanense El-Naffar, Saoud et Hassan, 1984, but it differs from it by having a bipartite internal seminal vesicle, wider eggs, a shorter intertesticular distance, an intestinal bifurcation at the ventral sucker level, a ventral sucker that is larger than the oral sucker, and a genital pore near the intestinal bifurcation or the ventral sucker. The surface topology of the new species is notably different from that of other allocreadiids. Papillae were observed in the ventral sucker and surrounding both ventral and oral suckers, but the number and arrangement of the latter were not consistent among specimens. The protruding cirrus of A. apokryfi sp. n. was described using SEM and is the first such observation for the genus. Genetic characterisation showed that the new species was clearly distinct from other Allocreadium spp. using both 18S (nucleotide difference 1.3-9.1%) and 28S (4.7-6.5%) rDNA, forming a well-supported clade in Allocreadium. The presence of A. apokryfi sp. n. in a well-studied river is unexpected, and considering the diet of its host and the scarcity of Allocreadium in Africa, the possible biology of this species is discussed herein.

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Section: Discussionmentioning

confidence: 72%

Morphological and molecular description of Allocreadium apokryfi sp. n. (Digenea: Allocreadiidae) from native Labeobarbus aeneus (Cyprinidae) in South Africa, including notes on its biology, evolutionary history and an updated key of African Allocreadium

et al. 2021

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“…The primary morphological characteristics of the haptoral sclerites and the reproductive organs (copulatory organ and vagina), which are generally considered for the identification of monogeneans, are used to distinguish distinct parasitic species [ 30 , 31 , 32 ]. The taxonomic identification of many parasites is currently thought to greatly benefit from the use of molecular advanced tools [ 33 ]. The partial 28S rRNA gene sequence was employed in the current investigation as a genetic marker to confirm the phylogenetic position of monogenean species collected from the Red Sea (Saudi Arabia).…”

Section: Discussionmentioning

confidence: 99%

A Monogenean Gill Parasite within the Genus Haliotrema (Ancyrocephalidae) Infecting Argyrops filamentosus Fish: Morphology and Molecular Studies

Abdel‐Gaber

Alghamdi

Quraishy

et al. 2023

Animals

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Due to the presence of different parasite taxa and other disease-causing agents, all fish species are extremely prone to dangers. As a result, the current study focused on some of the monogenean parasites that infect one of the economically important fish species, the soldier bream Argyrops filamentosus, from the Red Sea coast of Jeddah, Saudi Arabia. Following that, thirty A. filamentosus fish specimens were examined for monogenean parasites. The parasitic species were isolated and morphologically and molecularly studied. The presence of one monogenean species of Haliotrema susanae (F: Ancyrocephalidae) infecting gills was observed in 50% of the investigated fish species. The ancyrocephalid species Haliotrema susanae is characterized by having all generic features within the genus Haliotrema. It could be distinguished from other species within this genus by the male copulatory organ including a copulatory tube with no accessory piece and a haptor made up of two pairs of anchors, two bars, and seven pairs of marginal hooks. As ectoparasitic taxa of the investigated sparid fish, the current study of Haliotrema species constitutes the first report of this genus. A molecular phylogenetic analysis based on the partial 28S rRNA gene region was analyzed to investigate the phylogenetic affinity of this parasite with the genus Haliotrema belonging to Ancyrocephalidae. This study considers the addition of a new genetic sequence for this parasite species.

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“…Molecular biological tools are recently considered sensitive and advanced tests for parasite taxonomy (Chaudhary et al, 2016)…”

Section: Molecular Analysismentioning

confidence: 99%

Monostephanostomum mesospinosum (Digenea: Acanthocolpidae) Infecting the Coastal Trevally Carangoides caeruleopinnatus (Carangiformes: Carangidae) from the Marine Water off Saudi Arabia

Dkhil¹,

Alotaibi²,

Quraishy³

et al. 2023

IJAR

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Background: Carangids, like any other fish, can become infected with a variety of external and internal parasites. Little information on parasite infestations in these fish species is known. This study aimed to provide light on parasites that infect caragnids in Saudi Arabia. Methods: A total of 20 Carangoides caeruleopinnatus specimens were collected from the Red Sea (Saudi Arabia) and then examined for the presence of digenetic trematodes. Parasitic species were isolated and studied morphologically by using light microscopic examination and molecularly via the partial sequencing of 18S rRNA and 28S rRNA genes. Result: Only one parasitic species has been identified. This parasite is morphologically and morphometric compatible with previously Monostephanostomum mesospinosum, identified from Carangoides malabaricus in VSK, BOB. Phylogeny revealed that these putative acanthocolpid species nested well within a clade clustering Monostephanostomum species, which along with morphological data, suggests it is a member of the genus Monostephanostomum. Query sequences showed identities of 97.99% and 97.98% for 18S (EF506762.1.1) and 28S rRNA (EF506763.1) of Monostephanostomum nolani, respectively. This study reflects the third account of this genus as endoparasitic taxa of various carangid fish, as well as providing novel DNA data for this species.

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Molecular characterization of three species belongs to the Allocreadioidea, Hemiuroidea and Plagiorchioidea (Platyhelminthes: Trematoda) infecting freshwater fishes in India

Cited by 10 publications

References 17 publications

Morphological and molecular description of Allocreadium apokryfi sp. n. (Digenea: Allocreadiidae) from native Labeobarbus aeneus (Cyprinidae) in South Africa, including notes on its biology, evolutionary history and an updated key of African Allocreadium

Morphological and molecular description of Allocreadium apokryfi sp. n. (Digenea: Allocreadiidae) from native Labeobarbus aeneus (Cyprinidae) in South Africa, including notes on its biology, evolutionary history and an updated key of African Allocreadium

A Monogenean Gill Parasite within the Genus Haliotrema (Ancyrocephalidae) Infecting Argyrops filamentosus Fish: Morphology and Molecular Studies

Monostephanostomum mesospinosum (Digenea: Acanthocolpidae) Infecting the Coastal Trevally Carangoides caeruleopinnatus (Carangiformes: Carangidae) from the Marine Water off Saudi Arabia

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