Dt6-Su-Gl3

Dt6 was derived from virus-exposed cultures. The pattern is more extreme than. Dt1 in dosage response. In homozygous form the lower third to half of the kernel appears almost self-colored. In heterozygotes dotting is more frequent on the sides than crowns of the seeds. Dt4 in the Coop stocks is supposed to be on chromosome 4 but in repeated tests I have been unable to establish any linkage with su. On that basis I have assumed Dt6 to be new. Limited backcross data indicate the following linear order: Dt6 13 Su 41 Gl3.

G.F. Sprague
 
 


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