Data on mapping of rye dwarfing gene ct1 are presented. The F-2 popula
tion of rye plants from crossing of the Halo (Ct1/Ct1) and Gulzow Kurz
(ct1/ct1) varieties was analyzed by the RFLP method. The gene was loc
ated using 17 molecular probes. One of the probes, ScB 11, was isolate
d by the authors from Pst I genomic library of rye. According to the d
ata obtained, the ct1 gene was located on chromosome 7 in the centrome
re region between the probes X alpha-Amy2 and Xpsr163.