XX.—Inheritance of Resistance to Blight (Phytophthora infestans) in Potatoes: Comparison of A and B Strains

1 January 1949

journal article
research article
Published by Cambridge University Press (CUP) in Proceedings of the Royal Society of Edinburgh. Section B. Biology

Vol. 63 (3) , 290-301
https://doi.org/10.1017/s0080455x00011942

Abstract

Previous reports (Black, 1943, 1945) on the resistance of potatoes to the blight fungus (Phytophthora infestans) have shown the existence of at least two major genetic factors (Ra and Rb) in the host, and the occurrence of not less than two strains (A and B) of the pathogen.From the studies then reported, it was concluded that the two genes had been brought into the potato from different phyletic sources and that one, Ra, when in the dominant state, conferred resistance to strain A, while similarly Rb conferred resistance to strain B.

Keywords

This publication has 2 references indexed in Scilit:

Untersuchungen über die Genetik und Physiologie der Resistenz der Kartoffel gegenPhytophthora infestans de Bary
Der Züchter, 1941
Building up virulence in phytophthora infestans
American Journal of Potato Research, 1938