Field isolates of Tomato spotted wilt virus overcoming resistance in capsicum in Australia

被引：0
作者：
M. Sharman
D. M. Persley
机构：
[1] Department of Primary Industries and Fisheries,
[2] Cooperative Research Centre for Tropical Plant Protection,undefined
来源：
Australasian Plant Pathology | 2006年 / 35卷
关键词：
gene; gene;
D O I：
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中图分类号：
学科分类号：
摘要：
In 2002 at Virginia, South Australia, capsicum cultivars having the Tsw resistance gene against Tomato spotted wilt virus (TSWV) developed symptoms typical of TSWV infection and several glasshouse-grown crops were almost 100% infected. Samples reacted with TSWV antibodies in ELISA. Virus isolates from infected plants induced severe systemic symptoms, rather than a hypersensitive reaction, when inoculated onto capsicum cultivars and Capsicum chinense genotypes (PI 152225 and PI 159236) that carry the Tsw resistance gene. Isolates virulent towards the Tsw gene had molecular and biological properties very similar to standard TSWV isolates, including a hypersensitive reaction in Sw-5 (TSWV-resistant) tomato genotypes. Tsw-virulent isolates were found during surveys at Virginia in 2002 and 2004 in both TSWV-resistant and susceptible cultivars of capsicum and tomato.
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页码：123 / 128
页数：5
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