<Emphasis Type="Italic">Myxobolus honghuensis</Emphasis> n. sp. (Myxosporea: Bivalvulida) parasitizing the pharynx of allogynogenetic gibel carp <Emphasis Type="Italic">Carassius auratus gibelio</Emphasis> (Bloch) from Honghu Lake,China |
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| Authors: | Yang Liu Christopher M Whipps Z M Gu C Zeng M J Huang |
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| Institution: | (1) Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, People’s Republic of China;(2) Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry (SUNY-ESF), 246 Illick Hall, 1 Forestry Drive, Syracuse, NY 13210, USA; |
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| Abstract: | Myxobolus honghuensis n. sp. is described from allogynogenetic gibel carp Carassius auratus gibelio (Bloch), during a survey of myxosporean parasites in Honghu Lake, Hubei Province, China. It is characterized by the presence
of round plasmodia of 5–12 mm in diameter in the pharynx of host. Mature spores of M. honghuensis were pyriform in frontal view and anterior pointed with bluntly round posterior, they measured 16.9 ± 0.5 (15.1–19.5) μm
long, 10.4 ± 0.4 (9.0–11.3) μm wide, and 8.4 ± 0.4 (7.9–9.1) μm thick. Two polar capsules were pyriform and slightly unequal
with larger polar capsule 8.4 ± 0.4 (7.6–10.2) μm × 3.9 ± 0.2 (3.0–4.5) μm and smaller capsule 7.9 ± 0.2 (7.0–9.3) μm × 3.7 ± 0.3
(2.8–4.1) μm. Polar filaments coiled with seven to eight turns. Both morphology and DNA sequence data revealed that M. honghuensis n. sp. was distinct from other described Myxobolus species. Phylogenetic analysis placed M. honghuensis n. sp. in a clade of gill-infecting myxobolids. |
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