Deficiency C-Sh-Bz-857003

In an isolation plot of C-I Sh Bz Wx En x En C sh bz wx (Cross 1), a kernel with a shrunken, bronze phenotype was isolated. This would appear to be a deficiency for C-I Sh Bz. There is no male transmission of this chromosome segment. In crosses of this deficiency by c-m(r), the resulting kernels are colored with some colored to colorless sectors. This mutation deleted shrunken and bronze action as well as that of C-I but the colored phenotype from the c-m(r) cross indicates that this C can complement with the c-m(r) allele. The colorless sectors are either a reversion to C-I or a loss of the C component.

Peter A. Peterson

Please Note: Notes submitted to the Maize Genetics Cooperation Newsletter may be cited only with consent of the authors.

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