Begomovirus genetic diversity in the native plant reservoir Solanum nigrum:: Evidence for the presence of a new virus species of recombinant nature

被引：109

作者：

Garcia-Andres, Susana ^{[1
]}

Monci, Francisco ^{[1
]}

Navas-Castillo, Jesus ^{[1
]}

Moriones, Enrique ^{[1
]}

机构：

[1] CSIC, Estac Expt La Mayora, Malaga 29750, Spain

来源：

VIROLOGY | 2006年 / 350卷 / 02期

关键词：

begomovirus; Bemisia tabaci; genetic diversity; Lycopersicon esculentum; recombination; Solanum nigrum; tomato yellow leaf curl disease; tomato yellow leaf curl virus; wild reservoir; whitefly transmission;

D O I：

10.1016/j.virol.2006.02.028

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

We examined the native plant host Soloman nigrum as reservoir of genetic diversity of begomoviruses that cause the tomato yellow leaf curl disease (TYLCD) emerging in southern Spain. Presence of isolates of all the species and strains found associated with TYLCD in this area was demonstrated. Mixed infections were common, which is a prerequisite for recombination to occur. In fact, presence of a novel recombinant begomovirus was demonstrated. Analysis of an infectious clone showed that it resulted from a genetic exchange between isolates of the ES strain of Tomato yellow leaf curl Sardinia virus and of the type strain of Tomato yellow leaf curl virus. The novel biological properties suggested that it is a step forward in the ecological adaptation to the invaded area. This recombinant represents an isolate of a new begomovirus species for which the name Tomato yellow leaf curl Axarquia virus is proposed. Spread into commercial tomatoes is shown. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：433 / 442

页数：10

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