linkage data for pr-Dap-v2 and pr-v12-Dap on 5L
--Philip S. Stinard and Donald S.
We report the results of three-point linkage
tests for pr-Dap-v2 (Table 1) and pr-v12-Dap (Table 2). The
linkage tests were set up as modified backcrosses as indicated in Tables
1 and 2. Kernels from the backcross ears were planted in the field, the
resulting plants selfed, and the selfed ears scored for pr and Dappled
(Dap = dominant aleurone mosaic, dap = wild type solid aleurone
color). Approximately 50 kernels from each selfed ear were grown to seedling
stage in a cold sandbench (18 C) and the seedlings scored for v2
and v12. The following linkage relationships were established: pr-28.7-Dap-14.7-v2
and pr-5.6-v12-24.2-Dap. These data are consistent
with the known linkage relationships between pr, v12, and
and would place Dappled approximately 29 cM distal to pr on the
linkage map of chromosome 5, very close to Got2. The data also suggest
the placement of v2 43 cM distal to pr, which would move
v2 to a new map position of 110 from its previous position of 107.
The suggested map revision is:
1. Three-point linkage data for pr-Dap--v2.
2. Three-point linkage data for pr-v12-Dap.
Please Note: Notes submitted to the Maize Genetics Cooperation
Newsletter may be cited only with consent of the authors
to the MNL 64 On-Line Index
the Maize Newsletter Index
Return to the
Maize Genome Database Page