Figure 1.—

Location of RFLP markers chosen for cytogenetic FISH mapping and their position on the linkage map of maize chromosome 9. (A) Partial linkage map of chromosome 9 adapted from UMC 98 9 (Davis et al. 1999). Core bin markers (CBM) are in boxes and their corresponding cumulative map position in centimorgans is indicated on the left. The genetic bins (9.00, 9.01, etc.) are indicated in boldface type and the centimorgan distance between adjacent markers is indicated (small numbers between loci). Markers with the same linkage-map positions are listed together and separated by commas or indicated by branching lines. (B) Magnified version of the linkage map between CBM 9.03 (wx1) and CBM 9.04 (csu147), showing markers around the centromere. The estimated position of the centromere is indicated (solid box, cent9).