Alcohol dehydrogenase loci of sterile and fertile lines of tomato in the process of ontogenesis

A biochemical analysis through electrophoresis in polyacrylamide gel of alc ohol dehydrogenase loci in three ontogenetic phases of tomatoes' developmen t was carried out. This subject of investigation were the male-sterile line 6944 aa and the fertile anthocyan line 6944 aa(+). Higher levels of isozym e expression in leaves in the cotyledon phase of anthocyan plants, particul arly of isozyme No 1 in the Adh-2 locus, was found. The connection between alcohol dehyhrogenase, and pollen male sterility and anthocyan staining (aa (+)) were discussed. A quantitative molecular marker connected to a genetic marker (in this case) for the purposes of identifying sterile from fertile plants in the earliest phase of their development was established.