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It is particularly used when two similar viruses that are infecting the same cell exchange genetic material. More specifically, it refers to the swapping of entire segments of the genome, which only occurs between viruses with segmented genomes. [1] (All known viruses with segmented genomes are RNA viruses.)
Multipartite is a class of virus that have segmented nucleic acid genomes, with each segment of the genome enclosed in a separate viral particle. Only a few ssDNA viruses have multipartite genomes, but a many more RNA viruses have multipartite genomes. [1]
Bunyavirales is an order of segmented negative-strand RNA viruses with mainly tripartite genomes. Member viruses infect arthropods, plants, protozoans, and vertebrates. [2] It is the only order in the class Ellioviricetes. [1] The name Bunyavirales derives from Bunyamwera, [3] where the original type species Bunyamwera orthobunyavirus was first ...
[1] [2] Viruses are the most abundant biological entity and are extremely diverse; however, only a small fraction of viruses have been sequenced and only an even smaller fraction have been isolated and cultured. [1] [3] Sequencing viruses can be challenging because viruses lack a universally conserved marker gene so gene-based approaches are ...
Excluding viruses in the genus Tenuivirus and some in the family Chuviridae, all −ssRNA viruses have linear rather than circular genomes, and the genomes may be segmented or non-segmented. [1] [3] [4] All −ssRNA genomes contain terminal inverted repeats, which are palindromic nucleotide sequences at each end of the genome. [5]
The order name Articulavirales derives from Latin articulata meaning "segmented" (alluding to the segmented genome of member viruses) added to the suffix for virus orders -virales. [3] The class name Insthoviricetes is a portmanteau of member viruses " in fluenza, i s avirus, and tho gotovirus" added to the suffix -viricetes for virus classes.
The genomes of viruses in family Reoviridae contain 9–12 segments which are grouped into three categories corresponding to their size: L (large), M (medium) and S (small). Segments range from about 0.2 to 3 kbp and each segment encodes 1–3 proteins (10–14 proteins in total [ 1 ] ).
Viruses with segmented genomes for which replication occurs in the cytoplasm and for which the viral RNA-dependent RNA polymerase produces monocistronic mRNAs from each genome segment. Examples in this class include the families Orthomyxoviridae, Paramyxoviridae, Bunyaviridae, Filoviridae, and Rhabdoviridae (which includes rabies).