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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/11/26 21:57:18」(JST)

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The Potyviridae are a family of plant viruses. They are flexuous filamentous rod-shaped particles. Their genome is composed of positive-sense RNA which is surrounded by a protein coat made up of a single viral encoded protein called a capsid. All induce the formation of virus inclusion bodies called cylindrical inclusions (‘pinwheels’) in their hosts. These are composed of a single protein (70 kiloDaltons) made in their hosts from a single viral genome product.

Taxonomy

Based on the amino acid sequences of their coat proteins, the Potyiviridea are now divided into eight genera. All but the Bymovirus genus are single stranded particles. The eight genera are:

Genus Brambyvirus:
Genus Bymovirus; type species: Barley yellow mosaic virus
Genus Ipomovirus; type species: Sweet potato mild mottle virus
Genus Macluravirus; type species: Maclura mosaic virus
Genus Poacevirus:
Genus Potyvirus; type species: Potato virus Y
Genus Rymovirus; type species: Ryegrass mosaic virus
Genus Tritimovirus; type species: Wheat streak mosaic virus

The largest genus in the Family Potyviridea ^[1] is the potyviruses. There are more than 100 known species in this genus. These viruses are 720-850 nm in length and are transmitted by aphids. They can also be easily transmitted by mechanical means.

Notes on the genera

The species in the genus Macluravirus are 650-675 nm in length and are also transmitted by aphids.

The plant viruses in the genus Ipomovirus are transmitted by whiteflies and they are 750-950 nm long.

Tritimovirus and the Rymovirus are 680-750 nm long and are transmitted by eriophydid mites. (The rymoviruses are closely related to the potyviruses and may eventually be merged with the potyviruses.^[2])

The Bymovirus genome consists of two particles instead of one (275 and 550 nm) and these viruses are transmitted by the chytrid fungus, Polymyxa graminis.

References

^ Description of Plant Viruses: Potyviridae family
^ Description of Plant Viruses: Potyviridae family Figure

External links

Viralzone: Potyviridae

This plant virus article is a stub. You can help Wikipedia by expanding it.

English Journal

Ancient recombination events and the origins of hepatitis E virus.

Kelly AG1, Netzler NE1, White PA2.
BMC evolutionary biology.BMC Evol Biol.2016 Oct 12;16(1):210.
BACKGROUND: Hepatitis E virus (HEV) is an enteric, single-stranded, positive sense RNA virus and a significant etiological agent of hepatitis, causing sporadic infections and outbreaks globally. Tracing the evolutionary ancestry of HEV has proved difficult since its identification in 1992, it has be
PMID 27733122

Characterization of a new cucurbit-infecting ipomovirus from Sudan.

Desbiez C1, Verdin E2, Tepfer M2,3, Wipf-Scheibel C2, Millot P2, Dafalla G4, Lecoq H2.
Archives of virology.Arch Virol.2016 Oct;161(10):2913-5. doi: 10.1007/s00705-016-2981-x. Epub 2016 Jul 18.
Two members of the genus Ipomovirus (family Potyviridae) are known to infect cucurbits: cucumber vein yellowing virus (CVYV), which is emerging throughout the Mediterranean Basin, and squash vein yellowing virus (SqVYV), which has been described in America and the Caribbean Basin, and more recently
PMID 27430562

The Coat Protein and NIa Protease of Two Potyviridae Members Independently Confer Superinfection Exclusion.

Tatineni S1, French R2.
Journal of virology.J Virol.2016 Sep 28. pii: JVI.01697-16. [Epub ahead of print]
Superinfection exclusion (SIE) is an antagonistic virus-virus interaction whereby initial infection by one virus prevents subsequent infection by closely related viruses. Although SIE has been described in diverse viruses infecting plants, humans and animals, its mechanisms including involvement of
PMID 27681136

Japanese Journal

Soybean leaf rugose mosaic virus, a new soilborne virus in the family Potyviridae, isolated from soybean in Japan

KURODA Tomohisa,NABATA Koshio,HORI Takeshi,ISHIKAWA Kouji,NATSUAKI Tomohide
Journal of general plant pathology : JGPP 76(6), 382-388, 2010-12-01
NAID 10029720197

植物防疫基礎講座:植物ウイルスの分類学(6)ポティウイルス科(Potyviridae)

大木理
植物防疫 61(4), 235-238, 2007-04
NAID 40015385574

A universal PCR primer to detect members of the Potyviridae and its use to examine the taxonomic status of several members of the family

CHEN J
Arch Virol 146, 757-766, 2001
NAID 10015736873

Related Pictures

★リンクテーブル★

リンク元	「ポティウイルス科」「potato virus Y」「potyvirus」

「ポティウイルス科」

Potyviridae
Virus classification
Group:	Group IV ((+)ssRNA)
Family:	Potyviridae
Genera
	Brambyvirus; Bymovirus; Ipomovirus; Macluravirus; Poacevirus; Potyvirus; Rymovirus; Tritimovirus;