A Major Gene for Resistance to Anthracnose Leaf Blight in Maize |
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| Authors: | B Badu-Apraku V E Gracen G C Bergstrom |
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| Institution: | Dr. B. Badu;-Apraku Prof. V. E. Gracen, Department of Plant Breeding and Biometry Dr. G. C. Bergstrom;, Department of Plant Pathology, Cornell University, Ithaca, NY 14853 (U.S.A.). |
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| Abstract: | The inheritance of the reaction of maize (Zea mays L.) to anthracnose leaf blight caused by Colletotrichum graminicola was studied in eight generations derived from a cross between a hypersensitively resistant inbred. LB–58, and a susceptible inbred, A632. The generations consisted of the two parents, F1, F2 backcrosses and the backcrosses-selfed, Chisquare analysis of the data for individual locations as well as across locations indicated that resistance at both the seedling and mature plant stages of development is conditioned by a single dominant gene, designated CgL. A study of the reactions of LB-58 in several hybrid combinations indicated that resistance was expressed in ail cast-s even though the expression of CgL gene was modified somewhat in different hybrid combinations. |
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| Keywords: | Key words Zea mays anthracnose leaf blight -resistance genetic analysis gene expression |
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