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首页> 外文期刊>Plant Pathology >Characterization of Passionfruit severe leaf distortion virus, a novel begomovirus infecting passionfruit in Brazil, reveals a close relationship with tomato-infecting begomoviruses
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Characterization of Passionfruit severe leaf distortion virus, a novel begomovirus infecting passionfruit in Brazil, reveals a close relationship with tomato-infecting begomoviruses

机译：百香果严重叶片畸变病毒（一种在巴西感染百香果的新型贝莫病毒）的特征揭示了与番茄感染贝莫病毒的密切关系

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摘要

Molecular and biological characterization of the begomovirus isolate BR:LNS2:Pas:01, obtained from yellow passionfruit plants in Livramento de Nossa Senhora, Bahia state, Brazil, was carried out. Sequence analysis demonstrated that the BR:LNS2:Pas:01 DNA-A had highest nucleotide sequence identity with Tomato chlorotic mottle virus (77%) and had five ORFs corresponding to the genes cp, rep, trap, ren and ac4. The DNA-B had highest nucleotide sequence identity with Tomato yellow spot virus (74%) and two ORFs corresponding to the genes mp and nsp. These identity values indicate that this isolate represents a new begomovirus species, for which the name Passionfruit severe leaf distortion virus (PSLDV), is proposed. Phylogenetic analysis clustered the PSLDV DNA-A and -B in a monophyletic branch with Brazilian tomato-infecting begomoviruses. The isolate's host range was restricted to species from the Passifloraceae and Solanaceae. PSLDV-[BR:LNS2:Pas:01] was capable of forming pseudorecombinants with tomato-infecting begomoviruses, reinforcing its close relationship with these viruses and suggesting a possible common origin. However, the virus was not capable of infecting tomato.
机译：对得自巴西巴伊亚州Livramento de Nossa Senhora的黄色西番莲植物的Begomovirus分离株BR：LNS2：Pas：01进行了分子和生物学表征。序列分析表明，BR：LNS2：Pas：01 DNA-A与番茄绿斑驳斑驳病毒具有最高的核苷酸序列同一性（77％），并具有五个分别对应于cp，rep，trap，ren和ac4基因的ORF。 DNA-B与番茄黄斑病毒具有最高的核苷酸序列同一性（74％），并且有两个对应于mp和nsp基因的ORF。这些同一性值表明该分离株代表一种新的begomovirus物种，为此提出了名称百香果严重叶片畸变病毒（PSLDV）的名称。系统发育分析将PSLDV DNA-A和-B聚类于感染巴西番茄的bemomoviruses的单系分支中。该菌株的寄主范围仅限于西番莲科和茄科。 PSLDV- [BR：LNS2：Pas：01]能够与感染番茄的bemomovirus病毒形成假重组体，加强与这些病毒的密切关系并暗示可能的共同起源。但是，该病毒不能感染番茄。

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