Publications by authors named "Mathilde Villegas"
Article Synopsis
- Thousands of endoparasitoid wasp species from the Braconidae and Ichneumonidae families carry domesticated endogenous viruses (DEVs), specifically ichnoviruses (IVs), in their genomes.
- The study focuses on how large quantities of IV virions are produced in the ovary calyx cells of female wasps, especially during pupal and adult stages, and how these virions aid in the successful development of wasp offspring by infecting host insects.
- Researchers generated a detailed genome assembly for the Hyposoter didymator wasp and identified 67 HdIV loci, concluding that a specific gene, U16, is crucial for both the amplification of these loci and the formation of vir
Article Synopsis
- * Nanoviruses are transmitted by aphids and, after being ingested, can change their genome formula within the aphid’s digestive system, which is surprising since they do not replicate during transport.
- * The study indicates that these changes in the genome formula are not adaptive and are likely due to the differential degradation of virus particles when exposed to various conditions in the aphid's gut and saliva, rather than a response to environmental pressures like those seen in plants.
Vector transmission plays a primary role in the life cycle of viruses, and insects are the most common vectors. An important mode of vector transmission, reported only for plant viruses, is circulative nonpropagative transmission whereby the virus cycles within the body of its insect vector, from gut to salivary glands and saliva, without replicating. This mode of transmission has been extensively studied in the viral families and and is also reported for The biology of viruses within these three families is different, and whether the viruses have evolved similar molecular/cellular virus-vector interactions is unclear.
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