Analysis of the autonomy of maize dwarf 1 action in genetic mosaics.
Genetic mosaic maize plants that contained dwarf1 sectors in otherwise normal plants were analyzed. The analysis of dwarf1 sector growth relative to the surrounding wild-type tissue should test the hypothesis that Dwarf1 controls the production of a diffusible factor. Maize dwarf1 sectors did not show altered growth relative to the surrounding tissue, indicating that Dwarf1 controls the production of a diffusible factor. As Dwarf1 has been proposed to control the conversion of GA20 to biologically active GA1, these results suggest that GA, itself is the diffusible factor.
Winkler
R G
RG
Department of Plant Biology, University of California, Berkeley.
Freeling
M
M
D017343:Genes, Plant; D005838:Genotype; D009030:Mosaicism; D003313:Zea mays / Q000235:genetics* / Q000254:growth & development / Q000528:radiation effects