This work reports the genome sequence, host responses and transmission assays of two isolates of catharanthus mosaic virus (CatMV) from plants of Mandevilla sp. in the state of São Paulo, Brazil. The complete genome sequences of CatMV isolates, M1 and M2, comprised 9593 and 9711 nucleotides, respectively. The deduced polyprotein showed 99% (M1) and 84% (M2) identities with the corresponding amino acid sequence of a CatMV from Australia. CatMV-M2 isolate was mechanically transmitted and systemically infected Nicotiana benthamiana and Catharanthus roseus . It also caused local lesions on inoculated leaves of Chenopodium amaranticolor and C. quinoa . This isolate was transmitted by Myzus persicae to plants of Mandevilla sp. CatMV-M1 isolate, however, did not infect any of the above plants when mechanically inoculated, neither was transmitted by M. persicae . Use of virus-free mother plants of Mandevilla sp. for seedling production is recommended for disease management.

中文翻译：

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感染 Mandevilla sp. 的长春花花叶病毒分离株的生物学和分子特征。

这项工作报告了来自 Mandevilla sp. 植物的两种长春花花叶病毒 (CatMV) 分离株的基因组序列、宿主反应和传播分析。在巴西圣保罗州。CatMV 分离株的完整基因组序列，M1 和 M2，分别包含 9593 和 9711 个核苷酸。推导出的多蛋白与来自澳大利亚的 CatMV 的相应氨基酸序列显示出 99% (M1) 和 84% (M2) 的同一性。CatMV-M2 分离株通过机械传播和全身感染 Nicotiana bethamiana 和 Catharanthus roseus。它还对藜麦和藜麦的接种叶片造成局部损伤。这种分离物由桃蚜传播给 Mandevilla sp. 的植物。然而，当机械接种时，CatMV-M1 分离株不会感染上述任何植物，也不会通过 M. 桃子。使用 Mandevilla sp. 的无病毒母株。建议用于病害管理的苗木生产。