A glimpse into the DNA virome of the unique “living fossil” Welwitschia mirabilis
Here, we report the identification and characterization of four novel DNA viruses from Welwitschia mirabilis transcriptomic and genomic datasets. Complete circular virus-like sequences with affinity to members of the Caulimoviridae and Geminiviridae families were detected and characterized from We...
| Autores principales: | , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/12828 https://www.sciencedirect.com/science/article/pii/S0378111922006254 https://doi.org/10.1016/j.gene.2022.146806 |
| Sumario: | Here, we report the identification and characterization of four novel DNA viruses from Welwitschia mirabilis
transcriptomic and genomic datasets. Complete circular virus-like sequences with affinity to members of the
Caulimoviridae and Geminiviridae families were detected and characterized from Welwitschia mirabilis genomic
data. The two newly members of the Caulimoviridae family have been tentatively named as Welwitschia mirabilis
virus 1 and 2 (WMV1-WMV2); whereas the two identified geminiviruses were named as Welwitschia mirabilis
associated geminivirus A and B (WMaGVA-WMaGVB). Phylogenetic analysis suggests that WMV1-2 belong to a
proposed genus of Caulimoviridae-infecting gymnosperms. WMaGVA-B are phylogenetically related with both
mastreviruses and capulaviruses and likely represent a distinct evolutionary lineage within geminiviruses.
Additionally, we detected several endogenous virus-like elements (EVE) linked to the discovered viruses in the
recently reported W. mirabilis genome, suggesting a shared ancient evolutionary history of these viruses and the
Welwithschia. |
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