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Authors: Малыш, Ю. М.
Грушевая, И. В.
Игнатьева, А. Н.
Фролов, А. Н.
Токарев, Ю. С.
Исси, И. В.
Title: Генетический полиморфизм микроспоридий рода Nosema
Other Titles: Genetic polymorphism of microsporidia of the genus Nosema
Issue Date: 2016
Language (ISO): Russian
Pages: 151-152
Description: Genus Nosema is a polyphyletic taxon, composed of members of two phylogenetic lineages of microsporidia in sister position to each other. Presence of additional octosporous sporogony is formal criterion for species allocation to the genus Vairimorpha, while the absence - to the genus Nosema. The problem is that additional sporogony is not obligatory and is present in certain members of both lineages. It was proposed to define genus for this microsporidia basing upon their small subunit ribosomal RNA (SSU rRNA) sequence similarity to the type species, Nosema bombycis and Vairimorpha necatrix, respectively, more than ten years ago (Vossbrinck, Debrunner-Vossbrinck, 2005) yet remains unsupported formally. As opposed to SSU rRNA locus, internal transcribed spacer (ITS) is highly polymorphic. Comparison of Nosema pyrausta isolates shows molecular clone similarity of 65-85% for molecular clones derived both from a single host specimen or from different geographical locations.
Appears in Collections:Современные проблемы теоретической и морской паразитологии / Contemporary problems of theoretical and marine parasitology

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