Mapping of dek31 on chromosome arm 4L --William F. Sheridan
The embryo-lethal defective kernel mutation dek31 (ptd*-1130) is located about 14 cM distal to the gl4 locus on 4L. Last spring backcross kernels were scored for sugary (su1) and colorless (c2), planted in the greenhouse, scored for glossy (gl4) as seedlings and transplanted to the field and self-pollinated. The 361 selfed ears were scored for dek31 segregation. Frequencies of each of the 16 classes of backcross progeny and the recombination frequencies for the four point linkage test are presented in Table 1.

Table 1. Linkage of dek31 with su1, gl4, and c2.

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