作者：Batuman O, Mawassi M, Bar-Joseph M.
摘要：In an attempt to utilize post-transcriptional gene silencing (PTGS) as a means to impart resistance against Citrus tristeza virus (CTV) into citrus plants, the p23 + 3?UTR sequence (p23U) of the VT strain of CTV was engineered to fold into a double-stranded (ds) RNA structure. The resulting construct (p23UI) was introduced into Nicotiana benthamiana and Alemow (Citrus macrophylla) plants by Agrobacteriummediated transformation. Transgenic p23UI- N. benthamiana were resistant to infection with a viral vector made of Grapevine virus A (GVA) + p23U (GVA-p23U), as indicated by the absence of the chimeric virus from inoculated plants. Inoculation of transgenic p23UI Alemow plants with CTV resulted in delayed appearance of symptoms in 9 out of the 70 transgenic plants. However, none of the plants showed durable resistance, as indicated by the obtaining of similar Northern hybridization signals from both transgenic and non-transgenic citrus plants. The possible causes for the failure of transgenic citrus plants to confer durable resistance to CTV are discussed.
关键词：Citrus ; Nicotiana benthamiana ; Closterovirus ; Transgenic plants ; Pathogen-d
文献注录：Batuman O, Mawassi M, Bar-Joseph M.. Transgenes consisting of a dsRNA of an RNAi suppressor plus the 3\' UTR provide resistance to Citrus tristeza virus sequences in Nicotiana benthamiana but not in citrus [J]. Virus Genes. 2006, 03: 319-327.
报/刊名：《Virus Genes》，发表于2006 / 第 03 期。
文献类型： [J]
页码：第 319-327 页 / 共9 页