Morphological and Molecular Characterization of Myxobolus planilizae n. sp. (Cnidaria; Myxosporea; Myxobolidae) Infecting the Largescale Mullet Planiliza macrolepis (Smith, 1846) Collected From Cochin Backwaters, India

Correya, Mary Soniya; Vijayagopal, P; Karayi, Sanil Nandiath

doi:10.1007/s11686-022-00637-y

Cited by 2 publications

(3 citation statements)

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“…In agreement with previous cladograms (e.g. [ 8 , 21 , 40 ]), our phylogenetic analysis showed all novel Myxobolus sequences clustering within the clade of mugiliform-infecting Myxobolus , which reinforces the proposed monophyletic origin of this group [ 40 ]. Congruently with host affinity being the main evolutionary driver of myxobolid radiation [ 6 , 27 ], host-associated clustering was retrieved within the mugiliform-infecting clade, which included well-defined lineages of species parasitizing mullets belonging to the genera Chelon , Mugil , Planiliza , and Crenimugil .…”

Section: Discussionsupporting

confidence: 92%

“…[ 40 ] reported hyperdiversification of Myxobolus spp. in mullet hosts, which presently account for more than 55 species of this myxozoan genus [ 8 , 21 , 37 , 39 , 40 , 45 , 52 ]. In Portugal, a total of 14 Myxobolus spp.…”

Section: Introductionmentioning

confidence: 99%

“…Mullets are highly susceptible to infection by myxozoan parasites, with over 90 species identified from these hosts worldwide, most of which belonging to the genus Myxobolus Bütschli, 1882 [8,21,37,39,40,45,52]. In fact, Rocha et al [40] reported hyperdiversification of Myxobolus spp.…”

Section: Introductionmentioning

confidence: 99%

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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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