A ring chromosome on 2S
I have been maintaining stock of a ring chromosome (Ring 2S)
composed of a centromere and the segment of the short arm of
chromosome 2 carrying the B1:Peru allele of the B1 locus.
Transmission is through the male only. The stock may be
maintained by crossing as a male on the mutant cp*-1122A (also
called de*-N1122A), and selecting kernels that are sectored for
the collapsed phenotype. These produce seedlings that have
chimeras and pale green tassels (for photos, see Figure 1
My supply of this stock is very small, so if anyone is interested
in having a sample of this material please contact me soon.
Please Note: Notes submitted to the Maize Genetics Cooperation Newsletter may be cited only with consent of the authors
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