Virome of Three Termite Species from Southern Vietnam

Litov, Alexander G.; Zueva, A.I.; Tiunov, Alexei V.; Thinh, Nguyen Van; Belyaeva, N. V.; Karganova, Galina G.

doi:10.3390/v14050860

Cited by 3 publications

(2 citation statements)

References 31 publications

(60 reference statements)

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“…1). The LsDV identified in this study shared the closest phylogenetic relationship with a virus identified from Macrotermes carbonarius in southern Vietnam (17_N1 + N237) [ 81 ]. M. carbonarius is an open-air foraging species that collects plant litter and wood debris to cultivate fungi in fungal gardens [ 82 ], termites may act as vectors, transmitting deltaflexivirus to other fungi.…”

Section: Discussionmentioning

confidence: 93%

Discovery of novel RNA viruses through analysis of fungi-associated next-generation sequencing data

Lu,

Dai,

Xue

et al. 2024

BMC Genomics

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Background Like all other species, fungi are susceptible to infection by viruses. The diversity of fungal viruses has been rapidly expanding in recent years due to the availability of advanced sequencing technologies. However, compared to other virome studies, the research on fungi-associated viruses remains limited. Results In this study, we downloaded and analyzed over 200 public datasets from approximately 40 different Bioprojects to explore potential fungal-associated viral dark matter. A total of 12 novel viral sequences were identified, all of which are RNA viruses, with lengths ranging from 1,769 to 9,516 nucleotides. The amino acid sequence identity of all these viruses with any known virus is below 70%. Through phylogenetic analysis, these RNA viruses were classified into different orders or families, such as Mitoviridae, Benyviridae, Botourmiaviridae, Deltaflexiviridae, Mymonaviridae, Bunyavirales, and Partitiviridae. It is possible that these sequences represent new taxa at the level of family, genus, or species. Furthermore, a co-evolution analysis indicated that the evolutionary history of these viruses within their groups is largely driven by cross-species transmission events. Conclusions These findings are of significant importance for understanding the diversity, evolution, and relationships between genome structure and function of fungal viruses. However, further investigation is needed to study their interactions.

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Section: Discussionmentioning

confidence: 93%

Discovery of novel RNA viruses through analysis of fungi-associated next-generation sequencing data

Lu,

Dai,

Xue

et al. 2024

BMC Genomics

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“…Early studies have focused on the cockroach-specific densovirus for development as a biological control agent [18][19][20][21]. Advanced next-generation sequencing technologies and bioinformatic tools have enabled the identification and genetic characterization of novel viruses in several termites and cockroaches [15,[22][23][24]. These findings have important significance in reflecting viral origin, evolution and distribution in Blattodea.…”

Section: Introductionmentioning

confidence: 99%

The hidden RNA viruses in Blattodea (cockroaches and termites)

Wu,

Li,

Fan

et al. 2024

Microbial Genomics

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The insect order Blattodea (cockroaches and termites) has drawn substantial research attention for their dietary habits and lifestyle of living with or around humans. In the present study, we focused on the discovery of RNA viruses hidden in Blattodea insects using the publicly available RNA sequencing datasets. Overall, 136 distinctive RNA viruses were identified from 36 Blattodea species, of which more than 70 % were most closely related to the invertebrate-associated viral groups within Picornavirales, Sobelivirales, Bunyaviricetes, Jingchuvirales, Durnavirales, Lispiviridae, Orthomyxoviridae, Permutotetraviridae, Flaviviridae and Muvirales. Several viruses were associated with pathogens of vertebrates (Paramyxoviridae), plants (Tymovirales), protozoa (Totiviridae), fungi (Narnaviridae) and bacteria (Norzivirales). Collectively, 93 complete or near-complete viral genomes were retrieved from the datasets, and several viruses appeared to have remarkable temporal and spatial distributions. Interestingly, the newly identified Periplaneta americana dicistrovirus displayed a remarkable distinct bicistronic genome arrangement from the well-recognized dicistroviruses with the translocated structural and non-structural polyprotein encoding open reading frames over the genome. These results significantly enhance our knowledge of RNA virosphere in Blattodea insects, and the novel genome architectures in dicistroviruses and other RNA viruses may break our stereotypes in the understanding of the genomic evolution and the emergence of potential novel viral species.

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