Abstract
The extent of DNA base sequence homology between entomopoxviruses (EPVs) from Lepidoptera, Orthoptera, and the vertebrate poxvirus Vaccinia was investigated by DNA-DNA hybridization. α- 32P-Labeled DNA from Amsacta moorei EPV, Melanoplus sanguinipes EPV, and Vaccinia virus strain WR was hybridized with the DNA from six different entomopoxvirus isolates. Based on the thermal denaturation temperature of hybrid DNA molecules, approximately 54% base sequence homology was detected between Amsacta moorei and Euxoa auxiliaris EPV DNAs. Extensive DNA hybridization was detected between α- 32P-labeled Melanoplus sanguinipes EPV DNA and DNA from Arphia conspirsa and Phoetaliotes nebrascensis entomopoxviruses. No base sequence homology was detected between vaccinia DNA and DNA from any of the entomopoxvirus isolates used in this study.
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