Single gene heterosis for alcohol dehydrogenase in maize: the nature of the subunit interaction.

The products of the Adh 1 (F) allele which specifies an active enzyme, and the Adh 1 (Cm) allele which specifies a stable enzyme, interact in the heterodimer to give an active stable alcohol dehydrogenase. Investigations on the nature of the heterotic interaction are presented including comparisons of in vivo and in vitro synthesized heterodimers.