Details

Autor(en) / Beteiligte

• Stentiford, G.D.
• Ross, S.H.
• Kerr, R.
• Bass, D.
• Bateman, K.S.

Titel

Paradoxium irvingi n.gen. n.sp. (Microsporidia) infecting the musculature of European pink shrimp Pandalus montagui

Ist Teil von

• Journal of invertebrate pathology, 2015-09, Vol.130, p.1-8

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2015

Quelle

MEDLINE

Beschreibungen/Notizen

• [Display omitted] •A new genus and species within Clade 5 of the phylum Microsporidia is described.•Paradoxium irvingi n.gen., n.sp. infects musculature of pink shrimp Pandalus montagui.•Morphologically and phylogenetically distinct from nearest relative Thelohania butleri.•Further demonstrates significant plasticity in the muscle-infecting Microsporidia. This paper utilises histological, ultrastructure and molecular phylogenetic data to describe a novel genus and species (Paradoxium irvingi n.gen., n.sp.) within clade 5 of the phylum Microsporidia. The parasite infects the musculature of the pink shrimp Pandalus montagui captured from United Kingdom waters. The novel microsporidium is morphologically and phylogenetically dissimilar to its nearest phylogenetic branch relative Thelohania butleri infecting the sister shrimp taxon Pandalus jordani. Furthermore, it is morphologically distinct from the type species of the genus Thelohania, Thelohania giardi infecting European brown shrimp Crangon crangon. Since phylogenetic data pertaining to type T. giardi is not currently available, our discovery places some doubt on the likelihood that T. butleri represents the proposed surrogate for the type taxon. Further it demonstrates potential for significant morphological plasticity in this clade of muscle-infecting microsporidians of crustaceans which contains the genera Myospora, Cucumispora, Thelohania, and now Paradoxium. Since it cannot be stated with certainty that T. butleri (or other taxa within the clade) represent true close relatives of T. giardi, clarity on this issue will only occur with re-discovery and genotyping of type T. giardi infecting C. crangon from European waters.