Single-gene resistance is a term commonly used in plant pathology, referring to the ability of a plant to resist a disease due to a single gene. There are various synonyms for this phrase depending on the context. Some other phrases that can be used in place of single-gene resistance include monogenic resistance, qualitative resistance, major gene resistance, and R gene-mediated resistance. These terms are used to describe the genetic mechanisms that allow plants to defend themselves against pathogens. It is important to have a range of terminologies available when discussing plant resistance, as it can help to improve understanding and communication within the field.