Examination of host genome for the presence of integrated fragments of Solenopsis invicta virus
2011
Valles, Steven M. | Bextine, Blake
A series of oligonucleotide primer pairs covering the entire genome of Solenopsis invicta virus 1 (SINV-1) were used to probe the genome of its host, S. invicta, for integrated fragments of the viral genome. All of the oligonucleotide primer sets yielded amplicons of anticipated size from cDNA created from an RNA template from SINV-1. However, no corresponding amplification was observed when genomic DNA (from 32 colonies of S. invicta) was used as template for the PCR amplifications. Host DNA integrity was verified by amplification of an ant-specific gene, SiGSTS1. The representation of fire ant colonies included both social forms, monogyne and polygyne, and those infected and uninfected with SINV-1. Furthermore, no amplification was observed from genomic DNA from ant samples collected from Argentina or the US. Thus, it appears that SINV-1 genome integration, or a portion therein, has not likely occurred within the S. invicta host genome.
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