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电蚁（Wasmannia auropunctata）中的 RNA 病毒发现。

RNA virus discoveries in the electric ant, Wasmannia auropunctata.

机构信息

Center for Medical, Agricultural and Veterinary Entomology, USDA-ARS, 1600 SW 23rd Drive, Gainesville, FL, USA.

Genomics and Bioinformatics Research Unit, USDA-ARS, 1600 SW 23rd Drive, Gainesville, FL, USA.

出版信息

Virus Genes. 2023 Apr;59(2):276-289. doi: 10.1007/s11262-023-01969-1. Epub 2023 Feb 2.

DOI:10.1007/s11262-023-01969-1
PMID:36729322
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10025213/
Abstract

Despite being one of the most destructive invasive species of ants, only two natural enemies are known currently for Wasmannia auropunctata, commonly known as the electric ant or little fire ant. Because viruses can be effective biological control agents against many insect pests, including ants, a metagenomics/next-generation sequencing approach was used to facilitate discovery of virus sequences from the transcriptomes of W. auropunctata. Five new and complete positive sense, single-stranded RNA virus genomes, and one new negative sense, single-stranded RNA virus genome were identified, sequenced, and characterized from W. auropunctata collected in Argentina by this approach, including a dicistrovirus (Electric ant dicistrovirus), two polycipiviruses (Electric ant polycipivirus 1; Electric ant polycipivirus 2), a solinvivirus (Electric ant solinvivirus), a divergent genome with similarity to an unclassified group in the Picornavirales (Electric ant virus 1), and a rhabdovirus (Electric ant rhabdovirus). An additional virus genome was detected that is likely Solenopsis invicta virus 10 (MH727527). The virus genome sequences were absent from the transcriptomes of W. auropunctata collected in the USA (Hawaii and Florida). Additional limited field surveys corroborated the absence of these viruses in regions where the electric ant is invasive (the USA and Australia). The replicative genome strand of four of the viruses (Electric ant polycipivirus 2, Electric ant solinvivirus, Electric ant virus 1, and Solenopsis invicta virus 10 (in the electric ant) was detected in Argentinean-collected W. auropunctata indicating that the ant is a host for these viruses. These are the first virus discoveries to be made from W. auropunctata.

摘要

尽管红火蚁（Wasmannia auropunctata）是最具破坏性的入侵物种之一，但目前仅知两种红火蚁的天敌。由于病毒可以有效控制包括蚂蚁在内的许多害虫，因此采用宏基因组/下一代测序方法，从红火蚁的转录组中发现病毒序列。通过这种方法，从阿根廷采集的红火蚁中鉴定、测序和表征了五个新的和完整的正单链 RNA 病毒基因组和一个新的负单链 RNA 病毒基因组，包括一个双顺反子病毒（红火蚁双顺反子病毒）、两个多质病毒（红火蚁多质病毒 1；红火蚁多质病毒 2）、一个索林病毒（红火蚁索林病毒）、一个与小 RNA 病毒目中未分类群相似的离散基因组（红火蚁病毒 1）和一个弹状病毒（红火蚁弹状病毒）。还检测到一个可能是红火蚁病毒 10（MH727527）的病毒基因组。在美国（夏威夷和佛罗里达州）采集的红火蚁转录组中未检测到病毒基因组。额外的有限野外调查证实，在红火蚁入侵的地区（美国和澳大利亚）不存在这些病毒。在阿根廷采集的红火蚁中检测到四个病毒（红火蚁多质病毒 2、红火蚁索林病毒、红火蚁病毒 1 和红火蚁病毒 10（在红火蚁中）的复制基因组链，表明蚂蚁是这些病毒的宿主。这是首次从红火蚁中发现病毒。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcb1/10025213/48e25270a13a/11262_2023_1969_Fig7_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fcb1/10025213/48e25270a13a/11262_2023_1969_Fig7_HTML.jpg
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