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.
Publisher
Cambridge University Press (CUP)
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics
Reference6 articles.
1. Inheritance of Resistance to Two Strains of Blight (Phytophthora infestans de Bary) in Potatoes;Black;Trans. Roy. Soc. Edin.,1943
2. Untersuchungen über die Genetik und Physiologie der Resistenz der Kartoffel gegen Phytophthora infestans de Bary. Die genetische Analyse der Resistenz von Solanum demissum sp. (vorl. Mitteilung);Lehmann;Züchter,1941
3. Inheritance of Resistance to Blight (Phytophthora infestans) in Potatoes: Unbalanced Segregations;Black;Proc. Roy. Soc. Edin.,1945
4. Strains of Potato Blight in Scotland;Black;Scottish Agriculture,1947
5. Building up virulence in phytophthora infestans
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