Department of Plant Pathology & Microbiology, Texas A&M University, College Station, TX 77802, USA.
Department of Agriculture Biology, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka.
Viruses. 2020 Sep 10;12(9):1010. doi: 10.3390/v12091010.
are negative-sense segmented RNA viruses infecting arthropods, protozoans, plants, and animals. This study examines the phylogenetic relationships of plant viruses within this order, many of which are recently classified species. Comprehensive phylogenetic analyses of the viral RNA dependent RNA polymerase (RdRp), precursor glycoprotein (preGP), the nucleocapsid (N) proteins point toward common progenitor viruses. The RdRp of and show a close evolutional relationship while the preGP of and show a closed relationship. The N proteins of were closer to the , the were close to some members and the . The plant viral movement proteins of species within the and were more closely related to each other than to members of the . Interestingly, distal ends of 3' and 5' untranslated regions of species within the shared similarity to arthropod and vertebrate infecting members of the and compared to other plant virus families. Co-phylogeny analysis of the plant infecting viruses indicates that duplication and host switching were more common than co-divergence with a host species.
是感染节肢动物、原生动物、植物和动物的负义分段 RNA 病毒。本研究考察了该目中植物病毒的系统发育关系，其中许多是最近分类的物种。对病毒 RNA 依赖性 RNA 聚合酶（RdRp）、前体糖蛋白（preGP）和核衣壳（N）蛋白的综合系统发育分析表明，存在共同的祖先病毒。RdRp 与 密切相关，而 preGP 与 密切相关。N 蛋白与 、 与一些 成员和 关系密切。有趣的是， 科和 科内的植物病毒运动蛋白彼此之间的关系比与 科的成员更为密切。此外，与其他植物病毒家族相比， 科和 科内的物种 3'和 5'非翻译区的末端与节肢动物和脊椎动物感染的 科和 科成员具有相似性。植物感染病毒的共进化分析表明，与宿主物种共同进化相比，复制和宿主转换更为常见。
