Fins infestation induced by Myxobolus xiantaoensis in yellow catfish Tachysurus fulvidraco Richardson, 1846: Some pathophysiological and molecular insights

Tahir, Urfa Bin; Guo, Qingxiang; Gu, Zemao

doi:10.1016/j.micpath.2021.104772

Cited by 4 publications

(1 citation statement)

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“…However, morphological plasticity is not uncommon between myxozoans, and has been reported between geographical isolates of several Myxobolus spp. [ 20 , 21 , 26 , 47 , 49 , 51 ]. For instance, in clear parallelism to our case, Israeli isolates of Myxobolus exiguus Thélohan, 1895 were also reported to have smaller myxospores than Portuguese isolates belonging to the same species, with identification based on the comparison of ~2,000 bp sequences [ 21 ].…”

Section: Discussionmentioning

confidence: 99%

Myxozoan survey of thicklip grey mulletChelon labrosusreinforces successful radiation ofMyxobolusin mugiliform hosts

et al. 2023

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A myxozoan survey was performed on specimens of thicklip grey mullet Chelon labrosus (Risso) captured from the Douro River estuary, northern Portugal. Eleven new species, all belonging to the genus Myxobolus Bütschli, 1882 (M. abdominalis n. sp., M. aestuarium n. sp., M. caudalis n. sp., M. chelonari n. sp., M. cucurbitiformis n. sp., M. douroensis n. sp., M. intestinicola n. sp., M. invictus n. sp., M. labicola n. sp., M. peritonaei n. sp., and M. pinnula n. sp.) are described based on microscopic and molecular data, confirming the known high radiation of these myxozoans in mullets. Additionally, Myxobolus pupkoi Gupta et al., 2022 is reported for the first time from C. labrosus, bringing forth a novel case of morphological plasticity between geographic isolates. We consider that molecular-based comparisons are imperative for the description of mugiliform-infecting Myxobolus, with distance estimation further matching two of the novel Myxobolus spp. with sphaeractinomyxon types previously reported from another Portuguese estuary. This finding supports sphaeractinomyxon as specific life cycle counterparts of Myxobolus that infect mullets. Phylogenetic analyses of 18S rDNA retrieved a monophyletic clade of mugiliform-infecting myxobolids comprising well-supported lineages of species parasitizing mullets from the genera Chelon, Mugil, Crenimugil, and Planiliza. The existence of more than one Chelon- and Planiliza-infecting lineage reveals that myxobolids parasitized members of these genera multiple times during their evolution. Lastly, the elevated number of unmatched sphaeractinomyxon sequences included in the Chelon-infecting lineages clearly shows that Myxobolus diversity hosted by this genus remains underrated.

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