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Iridoviridae (Paperback, Softcover reprint of the original 1st ed. 1985)
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Iridoviridae (Paperback, Softcover reprint of the original 1st ed. 1985)
Series: Current Topics in Microbiology and Immunology, 116
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In 1976 the International Committee on Taxonomy of Vi ruses (ICTV)
created the family Iridoviridae to encompass several different
vertebrate and invertebrate viruses that did not fit into any of
the other established groups. The unifying features of this new
family were (1) polyhedral symmetry; (2) large (approximately 170
kilobase pairs), lin ear, double-stranded DNA genomes; and (37) a
cytoplas mic site of replication. The name "iridovirus" was derived
from the observa tion that larvae infected with many of the insect
viruses, as well as purified pellets of these viruses, glowed with
a blue or green iridescence - presumably due to the Bragg effect of
the viral crystals. However, none of the vertebrate "iridoviruses"
displayed this particular characteristic. An attempt was made to
substitute the more descriptive name of "icosahedral cytoplasmic
deoxyribovirus," but not only was this term too unwieldy, it also
did not conform to the latinized nomenclature the ICTV wished to
adopt. So, for both historical and esthetic reasons, "Iridoviridae"
was adopted as a family name, with Iridovirus as the genus
represented by the type 1 iridescent insect virus, Tipula iri
descent virus. At the 1982 ICTV Meeting, enough biochem ical data
had accumulated to permit the establishment of the following five
genera in the family Iridoviridae: English vernacular International
Type species name name 1. Small iridescent Iridovirus Tipula
iridescent virus insect virus (Type 1) 2. Large iridescent
Chloriridovirus Mosquito iridescent insect virus virus (Type 2) 3."
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