Inheritance of resistance to Watermelon mosaic virus in Cucumis melo that impairs virus accumulation, symptom expression, and aphid transmission
Inheritance of resistance to Watermelon mosaic virus in Cucumis melo that impairs virus accumulation, symptom expression, and aphid transmission
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DOI：
10.1094/phyto-95-0840
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发表时间：
2005-07-01
期刊：
影响因子：
3.2
通讯作者：
Moriones, E
中科院分区：
文献类型：
--
作者：
Díaz-Pendón, JA;Fernández-Muñoz, R;Moriones, E
发现黄瓜属梅洛登记号TGR-1551对西瓜花叶病毒（WMV，马铃薯Y病毒属，马铃薯Y病毒科）具有抗性。抗性导致病毒滴度急剧和显著降低，并且受感染的植物无症状或表现出轻微的病害症状。同一基因或紧密连锁的基因限制了病毒积累并改善了症状表达。没有观察到对接种叶片中病毒积累的影响，这表明感染的初始阶段不受影响。该抗性对来自西班牙甜瓜产区的一系列WMV分离物有效。使用蚜虫接种，抗性植物表现出较低的倾向，感染WMV和作为病毒源的二次传播，一旦感染。抗性受隐性遗传控制。
The Cucumis melo accession TGR-1551 was found to be resistant to Watermelon mosaic virus (WMV, genus Potyvirus, family Potyviridae). The resistance resulted in a drastic and significant reduction of virus titer and infected plants were asymptomatic or exhibited mild disease symptoms. The same gene or closely linked genes restricted virus accumulation and ameliorated symptom expression. No effect was observed on virus accumulation in inoculated leaves, which suggested that the initial phases of infection were not affected. The resistance was effective against a range of WMV isolates from Spanish melon production areas. Using aphid inoculations, resistant plants showed a lower propensity for infection by WMV and for serving as virus sources for secondary spread once infected. Resistance was determined to be under recessive genetic control.