| 词条 | Picornavirales |
| 释义 |
| image = | image_alt = | image_caption = | taxon = Picornavirales | authority = | synonyms = | synonyms_ref = | subdivision_ranks = Families | subdivision =
}}Picornavirales is an order of viruses with vertebrate, insect, algal or plant hosts.[1] The name has a dual etymology.[2] First, picorna- is an acronym for poliovirus, insensitivity to ether, coxsackievirus, orphan virus, rhinovirus, and ribonucleic acid.[2] Secondly, pico-, meaning extremely small, combines with RNA to describe these very small RNA viruses.[2] The families within this order share a number of common features:
The evolution of picorna-like viruses seems to have antedated the separation of eukaryotes into the extant crown groups.[3] TaxonomyThe taxonomy of this group has been reorganized by the International Committee on Taxonomy of Viruses in its 9th report in 2011.[4] The order contains six families and two unassigned genera. Although they did show some similarities, the families Caliciviridae and Potyviridae have not been included in the order, because they differed in some key features (capsid symmetry, absence of conservation in the sequence module, etc.). References1. ^{{Cite journal|last=Le Gall|first=Olivier|last2=Christian|first2=Peter|last3=Fauquet|first3=Claude M.|last4=King|first4=Andrew M. Q.|last5=Knowles|first5=Nick J.|last6=Nakashima|first6=Nobuhiko|last7=Stanway|first7=Glyn|last8=Gorbalenya|first8=Alexander E.|date=2008-04-01|title=Picornavirales, a proposed order of positive-sense single-stranded RNA viruses with a pseudo-T = 3 virion architecture|journal=Archives of Virology|volume=153|issue=4|pages=715–27 |pmid=18293057 |doi=10.1007/s00705-008-0041-x }} 2. ^1 2 {{cite web |title=Picornaviridae |url=https://talk.ictvonline.org/ictv-reports/ictv_online_report/positive-sense-rna-viruses/picornavirales/w/picornaviridae |website=International Committee on Taxonomy of Viruses (ICTV) |accessdate=5 February 2019 |language=en |format=html |date=October 2017}} 3. ^{{Cite journal|last=Koonin|first=Eugene V.|last2=Wolf|first2=Yuri I.|last3=Nagasaki|first3=Keizo|last4=Dolja|first4=Valerian V.|title=The Big Bang of picorna-like virus evolution antedates the radiation of eukaryotic supergroups|journal=Nature Reviews Microbiology|volume=6|issue=12|pages=925–939 |pmid=18997823 |doi=10.1038/nrmicro2030|year=2008}} 4. ^{{Cite web|url=https://talk.ictvonline.org/ictv-reports/ictv_9th_report/positive-sense-rna-viruses-2011/w/posrna_viruses/227/picornavirales|title=Picornavirales - Positive Sense RNA Viruses - Positive Sense RNA Viruses (2011) - International Committee on Taxonomy of Viruses (ICTV)|website=International Committee on Taxonomy of Viruses (ICTV)|language=en|access-date=2017-04-27}} External links
4 : Picornavirales|Animal virology|Virus orders|Riboviria |
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