The isolation of recombinants between related orbiviruses. 1978

B M Gorman, and J Taylor, and P J Walker, and P R Young

Temperature-sensitive mutants of the related orbiviruses, Wallal and Mudjinbarry, recombine with high frequency when grown in pairs in cell culture. The genome of each virus consists of discrete segments of double-stranded RNA and high frequency recombination suggests that reassortment of genome segments occurs rather than classical recombination. Electrophoresis in acrylamide gels of RNA extracted from the progeny of a cross between Wallal ts 101 and Mudjinbarry ts 3 mutants, revealed that three plaque isolates of 60 tested differed in RNA pattern from each of the parent viruses and from each other. Further analysis of the electrophoretic profiles suggested that the isolates were recombinants with RNA segments derived from each of the parent viruses.

UI MeSH Term Description Entries
D009154 Mutation Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations. Mutations
D011995 Recombination, Genetic Production of new arrangements of DNA by various mechanisms such as assortment and segregation, CROSSING OVER; GENE CONVERSION; GENETIC TRANSFORMATION; GENETIC CONJUGATION; GENETIC TRANSDUCTION; or mixed infection of viruses. Genetic Recombination,Recombination,Genetic Recombinations,Recombinations,Recombinations, Genetic
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D001103 Arboviruses Arthropod-borne viruses. A non-taxonomic designation for viruses that can replicate in both vertebrate hosts and arthropod vectors. Included are some members of the following families: ARENAVIRIDAE; BUNYAVIRIDAE; REOVIRIDAE; TOGAVIRIDAE; and FLAVIVIRIDAE. (From Dictionary of Microbiology and Molecular Biology, 2nd ed) Arbovirus,Arthropod-Borne Virus,Arthropod-Borne Viruses,Arthropod Borne Virus,Arthropod Borne Viruses,Virus, Arthropod-Borne,Viruses, Arthropod-Borne
D012328 RNA Viruses Viruses whose genetic material is RNA. RNA Rodent Viruses,RNA Rodent Virus,RNA Virus,Rodent Virus, RNA,Rodent Viruses, RNA,Virus, RNA,Virus, RNA Rodent,Viruses, RNA,Viruses, RNA Rodent
D012367 RNA, Viral Ribonucleic acid that makes up the genetic material of viruses. Viral RNA
D013696 Temperature The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms. Temperatures
D014779 Virus Replication The process of intracellular viral multiplication, consisting of the synthesis of PROTEINS; NUCLEIC ACIDS; and sometimes LIPIDS, and their assembly into a new infectious particle. Viral Replication,Replication, Viral,Replication, Virus,Replications, Viral,Replications, Virus,Viral Replications,Virus Replications

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