In an isolation plot that was C C and included the Dt
element, crossed by c sh wx, a kernel was isolated that showed colorless
sectors on a colored background. This appeared to be a loss of C,
c. In crosses with the wx-m1 reporter, Ac
activity was not evident. From a self of a plant that was
the following segregation was observed.
Because 1/2 of the progeny of this self are colorless, it would appear that the sectored type is not male transmissible. The colored class could come from crossovers of the breaker locus with the C allele. This hypothesis will be tested further. There are a number of breaker phenotypes, unrelated to Ac-Ds that are being explored.
to the MNL 67 On-Line Index
Return to the Maize Newsletter Index
Return to the Maize Genome Database Page