| Abstract: | A F2 mapping population was created from a cross between 'UC-90' and E-line ryes (Secale cereale L.), two lines that showed polymorphism for eight C-band loci. Clones from rye, as well as other grasses, were used as probes. RFLP maps of rye chromosomes 6R and 7R were generated that include the 6RS and 6RL terminal C-bands and the 7RS terminal C-band. The 6R map spans 230 cM and includes 9 loci. The 7R map covers 225 cM and includes 21 loci. Segregation distortion was detected for several chromosomal regions. Heterochromatic C-bands did not appear to be responsible for the distortion. |
