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rescuant (plural rescuants)

  1. (genetics) A rescued mutation, typically in a virus.
    • 2015 July 18, “Widely Used Herpes Simplex Virus 1 ICP0 Deletion Mutant Strain dl 1403 and Its Derivative Viruses Do Not Express Glycoprotein C Due to a Secondary Mutation in the gC Gene”, in PLOS ONE[1], DOI:10.1371/journal.pone.0131129:
      The mutation was also present in a rescuant virus and in two dl1403-derived viruses, D8 and FXE, but absent from the parental 17+, suggesting that the mutation was introduced during the construction of the dl1403 virus, and not as a result of passage in culture.