Linkage of Molecular Markers to Cercospora zeae-maydis Resistance in Maize
Stuart G. Gordona,
Michael Bartschc,
Inge Matthiesc,
Hans O. Geversd,
Patrick E. Lippsb and
Richard C. Pratt*,a
a Department of Horticulture and Crop Science, The Ohio State University/Ohio Agricultural Research & Development Center, 1680 Madison Ave., Wooster, OH 44691
b Department of Plant Pathology, The Ohio State University/OARDC, 1680 Madison Ave., Wooster, OH 44691
c University of Hohenheim, 350 Institute of Plant Breeding, Seed Science, and Population Genetics, 70593 Stuttgart, Germany
d Quality Seed CC, P.O. Box 100881, Scottsville 3209, KZN, Republic of South Africa

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Fig. 1. Frequency distribution of percent leaf area affected (PLAA) values calculated for gray leaf spot disease assessments in the F2:3 generation of VO613Y x Pa405 maize lines evaluated at Wooster, OH, and Cedara, RSA, 1998. The values represent the final disease assessment.
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Fig. 2. Linkage groups on the long arms of maize chromosomes two (left) and four (right). Molecular marker loci are listed to the right of the linkage group, and the intervals in centimorgans are shown to the left. The total length of the linkage group on 2L is 121 cM (includes markers from bins 2.08 and 2.09) and 73 cM on 4L (includes markers in bins 4.08 to 4.11). Black arrows indicate significant marker intervals, ! = marker used as a co-factor, # = marker flanks a significant interval. All markers in bold were added for genetic map construction after initial QTL detection identified these chromosomes as associated with resistance.
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Copyright © 2004 by the Crop Science Society of America.