The impacts of geographic and host species isolation on population divergence of Myxobolus lentisuturalis

Wang, Mao; Zhao, Yuanjun; Yang, Chengzhong

doi:10.1007/s00436-019-06234-9

Cited by 7 publications

(10 citation statements)

References 33 publications

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“…The low genetic divergence observed between isolates from these two widely-separated localities (511 km apart), indicates that geography has had limited impact in terms of genetic differentiation. Our finding is consistent with previous studies where samples of the same myxosporeans species, collected in distant geographic areas, had zero or very low genetic divergence in their 18S rDNA sequences (Urawa et al 2011, Adriano et al 2012, Wang et al 2019. According to Whipps and Kent (2006), host distribution and migration can be equally important factors in maintaining parasite gene flow over broad geographic areas.…”

Section: Discussionsupporting

confidence: 92%

“…Unini River myxospores were slightly crescent-shaped, shorter in length and significantly thicker compared to the Rio Negro River myxospores which were strongly arcuate shaped, comparatively longer and less thick (Mathews et al 2016). Although we noticed some discordance in myxospore morphology between the new isolate obtained and previously described C. amazonensis from Rio Negro River, the molecular analysis revealed a high similarity (99.91%) in 18S rDNA sequence data, with only a single (Zhao et al 2013, Wang et al 2019. The low genetic divergence observed between isolates from these two widely-separated localities (511 km apart), indicates that geography has had limited impact in terms of genetic differentiation.…”

Section: Discussionmentioning

confidence: 47%

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Molecular diagnostic based on 18S rDNA and supplemental taxonomic data of the cnidarian coelozoic Ceratomyxa (Cnidaria, Myxosporea) and comments on the intraspecific morphological variation

Sousa¹,

Milanin²,

Morandini³

et al. 2021

ZSE

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Ceratomyxa amazonensis is a cnidarian myxosporean originally described with strongly arcuate crescent-shaped myxospores, absence of vegetative stages and infecting Symphysodon discus, an important Amazonian ornamental fish in the aquarium industry. As part of a long-term investigation concerning myxosporeans that infect discus fish Symphysodon spp. from different rivers of the Amazon Basin, thirty specimens of S. discus collected from Unini River were examined. Plasmodial vegetative stages therefrom were found freely floating in the bile of gall bladders from eighteen fish. Mature myxospores were slightly crescent-shaped, measuring 4.72 ± 0.1 (4.52–4.81) μm in length, 24.2 ± 0.4 (23.9–25.3) μm in thickness with polar capsules 2.31 ± 0.1 (2.29–2.33) μm in length and 2.15 ± 0.1 (2.13–2.17) μm in width. Strong morphological differences were observed between the newly isolated myxospores obtained and the previously described C. amazonensis; however, molecular assessment, based on 18S rDNA, revealed a high similarity (99.91%), with only a single nucleotide base change. This study provides new data, expanding the original description of the species with a discussion on differences in myxospore-morphology in the context of intraspecific morphological plasticity.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 47%

Molecular diagnostic based on 18S rDNA and supplemental taxonomic data of the cnidarian coelozoic Ceratomyxa (Cnidaria, Myxosporea) and comments on the intraspecific morphological variation

Sousa¹,

Milanin²,

Morandini³

et al. 2021

ZSE

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“…were located in the serous membrane of the spleen, while M. colossomatis was described infecting several organs (fins, gills, heart and intestine). On the same vein, host species isolation plays an important role in myxosporean population divergence [31]. Such isolation concerns particularly parasites of freshwater fishes which usually inhabit in isolate watersheds [32].…”

Section: Discussionmentioning

confidence: 99%

Morphostructural data and phylogenetic relationships of a new cnidarian myxosporean infecting spleen of an economic and ecological important bryconid fish from Brazil

Milanin

Mathews

Morandini

et al. 2021

Microbial Pathogenesis

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“…They were deposited in the GenBank under the accession numbers (OR416129-34) and compared with the previous sequences of M. lentisuturalis in the GenBank. Our three 18S rDNA sequences showed ≥99.8% identity with the sequences from goldfish in Italy (AY278563), China (MF150547) and the USA (OP374272) (Caffara et al, 2009;Hepps Keeney et al, 2023;Wang et al, 2019).…”

Section: Molecular and Phylogenetic Analysesmentioning

confidence: 69%

The first detection of Myxobolus lentisuturalis Dyková, Fiala et Nie, 2002, a highly pathogenic muscle‐infecting parasite of gibel carp (Carassius auratus gibelio Berg, 1932) in Hungary

Suhaimi,

Colunga‐Ramírez,

Sellyei

et al. 2023

Journal of Fish Diseases

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Myxobolus lentisuturalis is a myxosporean parasite infecting the musculature both of goldfish (Carassius auratus auratus) and gibel carp (Carassius auratus gibelio). The species was originally described in China from gibel carp that is a common fish for sport fishing in Hungary meanwhile is one of the most popular farmed fish in China due to its high demand. Eighteen gibel carp with distortions were collected from a barrage pond in southern Hungary. All fish had large humps in the dorsolateral region due to infection of the muscle between the head and the dorsal fin. The swollen degenerated tissue was filled with myxozoan spores, which were collected for morphological and molecular studies. By size and morphology, the spores were consistent with morphological description of M. lentisuturalis. Histopathological examination showed that the formation of plasmodia containing myxospores leads to severe destruction of muscle tissue. The 18S ribosomal DNA and 28S ribosomal DNA data of the samples presented matched with previous sequences of M. lentisuturalis in GenBank. Phylogenetic analyses confirmed that our sequences belong to a monophyletic group with them supported by a high bootstrap. This study highlights the occurrence of a highly pathogenic myxozoan, M. lentisuturalis in Hungary as a new geographical location.

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The impacts of geographic and host species isolation on population divergence of Myxobolus lentisuturalis

Cited by 7 publications

References 33 publications

Molecular diagnostic based on 18S rDNA and supplemental taxonomic data of the cnidarian coelozoic Ceratomyxa (Cnidaria, Myxosporea) and comments on the intraspecific morphological variation

Molecular diagnostic based on 18S rDNA and supplemental taxonomic data of the cnidarian coelozoic Ceratomyxa (Cnidaria, Myxosporea) and comments on the intraspecific morphological variation

Morphostructural data and phylogenetic relationships of a new cnidarian myxosporean infecting spleen of an economic and ecological important bryconid fish from Brazil

The first detection of Myxobolus lentisuturalis Dyková, Fiala et Nie, 2002, a highly pathogenic muscle‐infecting parasite of gibel carp (Carassius auratus gibelio Berg, 1932) in Hungary

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