Suppr超能文献

通过宏转录组学数据拓展侵染植物的蛇形病毒组。

Expanding the Repertoire of the Plant-Infecting Ophioviruses through Metatranscriptomics Data.

机构信息

Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria (IPAVE-CIAP-INTA), Camino 60 Cuadras Km 5,5, Córdoba X5020ICA, Argentina.

Unidad de Fitopatología y Modelización Agrícola, Consejo Nacional de Investigaciones Científicas y Técnicas, Camino 60 Cuadras Km 5,5, Córdoba X5020ICA, Argentina.

出版信息

Viruses. 2023 Mar 25;15(4):840. doi: 10.3390/v15040840.

Abstract

Ophioviruses (genus , family ) are plant-infecting viruses with non-enveloped, filamentous, naked nucleocapsid virions. Members of the genus have a segmented single-stranded negative-sense RNA genome (ca. 11.3-12.5 kb), encompassing three or four linear segments. In total, these segments encode four to seven proteins in the sense and antisense orientation, both in the viral and complementary strands. The genus includes seven species with viruses infecting both monocots and dicots, mostly trees, shrubs and some ornamentals. From a genomic perspective, as of today, there are complete genomes available for only four species. Here, by exploring large publicly available metatranscriptomics datasets, we report the identification and molecular characterization of 33 novel viruses with genetic and evolutionary cues of ophioviruses. Genetic distance and evolutionary insights suggest that all the detected viruses could correspond to members of novel species, which expand the current diversity of ophioviruses ca. 4.5-fold. The detected viruses increase the tentative host range of ophioviruses for the first time to mosses, liverwort and ferns. In addition, the viruses were linked to several , and crops/ornamental plants. Phylogenetic analyses showed a novel clade of mosses, liverworts and fern ophioviruses, characterized by long branches, suggesting that there is still plenty of unsampled hidden diversity within the genus. This study represents a significant expansion of the genomics of ophioviruses, opening the door to future works on the molecular and evolutionary peculiarity of this virus genus.

摘要

噬菌病毒(属,科)是一类感染植物的病毒,具有无包膜、丝状、裸露核衣壳的病毒粒子。属的成员具有分段的单链负义 RNA 基因组(约 11.3-12.5 kb),包含三个或四个线性片段。总的来说,这些片段在正义和反义方向上编码四个到七个蛋白质,包括病毒和互补链上的蛋白质。属包括七种感染单子叶植物和双子叶植物的病毒,主要是树木、灌木和一些观赏植物。从基因组的角度来看,截至今天,只有四个物种有完整的基因组。在这里,通过探索大型公开可用的宏转录组数据集,我们报告了 33 种新病毒的鉴定和分子特征,这些病毒具有噬菌病毒的遗传和进化线索。遗传距离和进化分析表明,所有检测到的病毒都可能对应于新种的成员,这将噬菌病毒的现有多样性扩大了约 4.5 倍。这些检测到的病毒首次将噬菌病毒的暂定宿主范围扩大到苔藓、地钱和蕨类植物。此外,这些病毒与几种农作物/观赏植物有关。系统发育分析显示了一个新的苔藓、地钱和蕨类植物噬菌病毒分支,其特征是长分支,这表明该属内仍有大量未被采样的隐藏多样性。本研究代表了噬菌病毒基因组学的重大扩展,为该病毒属的分子和进化特征的未来研究打开了大门。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8757/10144540/e1600ccd282d/viruses-15-00840-g001.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验