In March 2020, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote on newly proposed taxa, the phylum Negarnaviricota was amended and emended. At the genus rank, 20 new genera were added, two were deleted, one was moved, and three were renamed. At the species rank, 160 species were added, four were deleted, ten were moved and renamed, and 30 species were renamed. This article presents the updated taxonomy of Negarnaviricota as now accepted by the ICTV.
- MeSH
- Mononegavirales klasifikace MeSH
- terminologie jako téma MeSH
- Publikační typ
- zprávy MeSH
A myxosporean producing actinospores of the tetractinomyxon type in Hydroides norvegicus Gunnerus (Serpulidae) in Denmark was identified as a member of the family Parvicapsulidae based on small-subunit ribosomal DNA (SSU rDNA) sequences. Myxosporean samples from various Danish and Norwegian marine fishes were examined with primers that detect the novel myxosporean. Sprattus sprattus (Linnaeus) and Clupea harengus Linnaeus (Teleostei, Clupeidae) were found to be infected. The sequences of this parvicapsulid from these hosts were consistently slightly different (0.8% divergence), but both these genotypes were found in H. norvegicus. Disporic trophozoites and minute spores of a novel myxosporean type were observed in the renal tubules of some of the hosts found infected through PCR. The spores appear most similar to those of species of Gadimyxa Køie, Karlsbakk et Nylund, 2007, but are much smaller. The actinospores of the tetractinomyxon type from H. norvegicus have been described previously. In GenBank, the SSU rDNA sequences of Parvicapsulidae gen. sp. show highest identity (82%) with Parvicapsula minibicornis Kent, Whitaker et Dawe, 1997 infecting salmonids (Oncorhynchus spp.) in fresh water in the western North America. A phylogenetic analysis places P. minibicornis and Parvicapsulidae gen. sp. in a sister clade to the other parvicapsulids (Parvicapsula spp. and Gadimyxa spp.).
- MeSH
- fylogeneze MeSH
- genotyp MeSH
- hostitelská specificita MeSH
- ledviny parazitologie MeSH
- molekulární sekvence - údaje MeSH
- Myxozoa klasifikace genetika růst a vývoj izolace a purifikace MeSH
- nemoci ryb parazitologie MeSH
- parazitární nemoci u zvířat parazitologie MeSH
- Polychaeta parazitologie MeSH
- polymerázová řetězová reakce veterinární MeSH
- ribozomální DNA chemie genetika MeSH
- ryby MeSH
- sekvence nukleotidů MeSH
- sekvenční analýza DNA veterinární MeSH
- sladká voda parazitologie MeSH
- spory ultrastruktura MeSH
- stadia vývoje MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Dánsko MeSH
- Norsko MeSH
Sequencing of SSU rDNA showed that actinospores of the tetractinomyxon type, which develop in Chone infundibuliformis Kroyer (Annelida, Polychaeta, Sabellidae) from the northern Oresund, Denmark, are identical with Ceratomyxa auerbachi Kabata, 1962 (Myxozoa, Ceratomyxidae). This myxosporean was found in the gallbladder of the Atlantic herring Clupea harengus L. from the northern Oresund, Denmark, and from the Bergen area, western Norway. The pansporocysts and actinospores of C. auerbachi are described. This is the third elucidated two-host life cycle of a marine myxozoan, and the first involving a marine ceratomyxid.
- MeSH
- Eukaryota cytologie fyziologie izolace a purifikace MeSH
- fylogeneze MeSH
- molekulární sekvence - údaje MeSH
- Polychaeta parazitologie MeSH
- protozoální DNA genetika chemie MeSH
- ribozomální DNA genetika chemie MeSH
- RNA ribozomální 18S genetika MeSH
- ryby parazitologie MeSH
- sekvenční analýza DNA MeSH
- sekvenční homologie nukleových kyselin MeSH
- spory protozoální genetika izolace a purifikace MeSH
- žlučník patofyziologie MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Geografické názvy
- Dánsko MeSH
- Norsko MeSH
- MeSH
- finanční podpora výzkumu jako téma MeSH
- nemoci ryb přenos psychologie MeSH
- odběr vzorku krve metody využití MeSH
- pijavice parazitologie MeSH
- Trypanosoma parazitologie růst a vývoj MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Geografické názvy
- Norsko MeSH
