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Taxonomy on three novel species of Sphaeromyxa Thélohan 1892 (Myxozoa, Bivalvulida, Sphaeromyxidae) with insight into the evolution of the genus
Three new myxosporeans of the genus Sphaeromyxa Thélohan 1892 were discovered from the coastal waters off Xiamen in the East China Sea and characterized based on morphological and SSU rDNA data. Sphaeromyxa photopectoralis sp. n. was described from Photopectoralis bindus , and Sphaeromyxa sebastisca...
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Published in: | Parasitology research (1987) 2020-05, Vol.119 (5), p.1493-1503 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Three new myxosporeans of the genus
Sphaeromyxa
Thélohan 1892 were discovered from the coastal waters off Xiamen in the East China Sea and characterized based on morphological and SSU rDNA data.
Sphaeromyxa photopectoralis
sp. n. was described from
Photopectoralis bindus
, and
Sphaeromyxa sebastisca
sp. n. was described infecting both
Sebastiscus marmoratus
(type-host) and
Scorpaenopsis cirrosa
. These two species are morphologically consistent with the “balbianii” group, possessing straight myxospores and truncated ends, but are distinct from one another genetically and by myxospore dimensions. A third myxosporean infecting
Siganus fuscescens
was described as
Sphaeromyxa xiamenensis
sp. n., and this species is morphologically consistent with the “incurvata” group, bearing arcuate myxospores with rounded ends. The molecular phylogeny and estimated rRNA secondary structure suggest that marine sphaeromyxids are probably derived from freshwater myxidiids, and “incurvata” and “balbianii” groups might each represent independent evolutionary lineages. The present study also shows that
S. limocapitis
phylogenetically nested in “incurvata” group. |
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ISSN: | 0932-0113 1432-1955 |
DOI: | 10.1007/s00436-020-06656-w |