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烟草脆裂病毒在‘绿喷泉’玉簪杂种及其它植物中的基因组改变：重配、重组和缺失。

Tobacco rattle virus genome alterations in the Hosta hybrid 'Green Fountain' and other plants: reassortments, recombinations and deletions.

机构信息

Julius Kühn Institute, Federal Research Center for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics, Messeweg 11, Braunschweig, Germany.

出版信息

Arch Virol. 2012 Oct;157(10):2005-8. doi: 10.1007/s00705-012-1365-0. Epub 2012 Jun 13.

DOI:10.1007/s00705-012-1365-0
PMID:22692679
Abstract

Tobacco rattle virus from a Hosta hybrid contained one RNA1 (Ho-1) and two RNA2 species (Ho-2a, Ho-2b). Whereas Ho-1 resembles TRV Al RNA1 from Alstroemerias, Ho-2a and Ho-2b resemble TRV TpO1 RNA2 from a potato field. Ho-2a has a complete RNA2-specific sequence, whereas that of Ho2-b carries a large deletion. The short RNA1-related 3' end of Ho-2a is distinct from that of Ho-1, whereas the longer one of Ho-2b is identical to that of Ho-1. TRV RNA2 molecules may apparently become associated with different TRV RNA1 molecules, from which they can acquire 3'ends of various lengths while often losing large portions of their RNA2-specific sequences.

摘要

从一种玉簪属杂种植物中分离到的烟草脆裂病毒含有一个 RNA1（Ho-1）和两个 RNA2 物种（Ho-2a、Ho-2b）。虽然 Ho-1 类似于从孤挺花中分离到的 TRV Al RNA1，但 Ho-2a 和 Ho-2b 类似于从马铃薯田中分离到的 TRV TpO1 RNA2。Ho-2a 具有完整的 RNA2 特异性序列，而 Ho2-b 的序列则带有较大的缺失。Ho-2a 的短 RNA1 相关 3' 端与 Ho-1 不同，而 Ho-2b 的长 3' 端与 Ho-1 相同。TRV RNA2 分子显然可以与不同的 TRV RNA1 分子结合，从这些分子中，它们可以获得不同长度的 3' 端，同时经常失去其 RNA2 特异性序列的大部分。

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