Поиск по автору "Yurakhno, V."
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Материал First report of Auerbachia chakravartyi (Myxosporea: Bilvavulida) from the gallbladder of Torpedo scad (Megalaspis cordyla) in Vietnam(Севастополь, 2019) Chinh, Nguyen Ngoc; Ngo, Ha Duy; Yurakhno, V.; Doanh, Pham NgocМатериал Molecular characterization of Kudoa nova (Myxosporea: Multivalvulida) infecting the round goby Neogobius melanostomus from the Sea of Azov(2012) Pascual, S.; Abollo, E.; Yurakhno, V.; Gaevskaya, A.Diagnosis of Kudoa nova infecting the skeletal muscle tissue of round gobiid Neogobius melanostomus collected in the Sea of Azov was done by adding molecular data to the demographic and morphological characterizations of the parasite. The small subunit (SU) ribosomal DNA sequence analysis revealed Kudoa nova cluster within clade that includes Kudoa paniformis, Kudoa dianae, Kudoa sp., Kudoa miniauriculata, Kudoa alliaria and Kudoa rosenbuschi. Results on the molecular sequence data of Kudoa nova provide new evidence to discuss the hypothesis of tissue tropism playing an important role in the radiation of kudoids.Материал Morphology, histology and phylogeny of Henneguya sinova sp. nov. (Myxobolidae: Myxozoa) infecting gills of Parablennius tentacularis in the Black Sea, Turkey(2016) Özer, A.; Özkan, H.; Gürkanlı, C. T.; Yurakhno, V.; Çiftçi, Y.Myxosporeans of the genus Henneguya have a global distribution and infect organs and tissues of both marine and freshwater fishes. Here we describe the morphological, histological and molecular characteristics of Henneguya sinova sp. nov. parasitizing the gill arches of tenta-cled blenny Parablennius tentacularis (Perciformes: Blenniidae) collected from the coast of Sinop on the Black Sea in Turkey. Several oval whitish plasmodia of different sizes in the gill arches of fish were found. The mature spores were rounded oval in frontal view, with a mean (range) total length 57.5 (51.5-68.0) µm; the spore body was 11.7 (11.3-12.0) µm in length by 7.6 (7.3-8.3) µm in width and 6.7 (6.6-6.8) µm in thickness. The caudal appendages, measuring 46.0 (40.0-55.0) µm in length, were very thin at the tapered end. The prevalence of infection by H. sinova sp. nov. was 35.5%. Phylogenetic analysis of nuclear small subunit ribosomal DNA (SSU rDNA) clearly suggested H. sinova as a new species which is clustered within the marine Henneguya lineage. Pairwise nucleotide similarities and DNA distance values of SSU rDNA between H. sinova sp. nov. and other related Henneguya species also supported this suggestion.