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Genetics

Genetic Inhibition of Ascus Formation in Cochliobolus carbonum. S. C. Dalmacio, Graduate Assistant, Department of Plant Pathology, The Pennsylvania State University, University Park 16802; R. R. Nelson, Evan Pugh Professor, Department of Plant Pathology, The Pennsylvania State University, University Park 16802. Phytopathology 66:1354-1355. Accepted for publication 1 June 1976. Copyright © 1976 The American Phytopathological Society, 3340 Pilot Knob Road, St. Paul, MN 55121. All rights reserved.. DOI: 10.1094/Phyto-66-1354.

An analysis of 51 complete ascus tetrads from four different crosses of Cochliobolus carbonum isolates indicates that inhibition of ascus formation is controlled by a single locus, designated S-s in allelic form, and inherited independently of the A-a mating type alleles.