En(Active)
in inbred 4Co63
--Peter A. Peterson
In extensive screening of numerous populations,
only Uq and Mrh have generally been found. In an accidental
crossing with a W23/4Co63 hybrid, every ear showed mutability when crossed
with c-m(r). In order to distinguish which of the two lines carried
the En, c-m(r) was crossed to the individual inbreds. Every
plant (from 4Co63) (9/9 tested) carried En and in the homozygous
condition. This is surprising since even with Uq or Mrh,
rarely do all the plants have the element and even more rarely, in the
homozygous condition.
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