 The "S. citri" chromosome contains CDS of plectrovirus prophages at multiple sites, often truncated, and many homologous to SpV1.There is evidence that shows, in the partially sequenced "S. citri" genome, at least 20.5% of CDS are phage-related, while 47.2% of CDS are of unknown function.These sequences of unknown function could be remnants of viral sequence insertions, a common feature with other Mollicute genomes, as they contain repeated clusters of genes that could be "mobile genetic elements or remnants of ancient phage attacks."