Deficiency c-sh-836882

In a population derived from the cross of C-I Sh Bz Wx1; En, En, En x C sh bz wx (Cross B), a colored shrunken kernel appeared. This is a simultaneous change in both the C-I and Sh genes. Crosses were made as follows, with the indicated results:

Table.

Comments on these preliminary data: lines 1 and 6 indicate adequate female transmission. Lines 2 and 4 show the absence of male transmission from this deficiency. This is also true of the tests of males on the C sh bz wx tester as in lines 3 and 5. Line 7 indicates that an En is present and the C-I allele changed to a null or deficiency that also includes parts of the Sh locus.

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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