The term vertical resistance, used commonly in context of plant selection, was first used by J.E. Vanderplank
[Vanderplank, J.E. (1963) Plant Diseases: Epidemics and Control. Academic Press, New York and London, 349pp.] to describe single-gene resistance. This contrasted the term
horizontal resistance In genetics, the term horizontal resistance was first used by J.E. VanderplankVanderplank, J.E. (1963) Plant Diseases: Epidemics and Control. Academic Press, New York and London, 349pp. to describe many-gene resistance, which is sometimes also call ...
which was used to describe many-gene resistance.
Raoul A. Robinson[ Robinson, Raoul A. (1976) Plant Pathosystems. Springer-Verlag, Berlin, Heidelberg, New York, 184pp.] further refined the definition of vertical resistance, emphasizing that in vertical resistance there are single genes for resistance in the host plant, and there are also single genes for parasitic ability in the parasite. This phenomenon is known as the
gene-for-gene relationship, and it is the defining character of vertical resistance.
References
Phytopathology
Molecular biology
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