[Polyacrylamide gel electrophoresis of the soluble proteins of reproductive and trophic eggs of the ant Plagiolepis pygmaea Latr].

The soluble-protein contents in the reproductive eggs laid by queen and workers and in the trophic eggs laid by workers are compared by disc electrophoresis. Protein bands are clearly fewer in the latter. The role of this decrease in the lack of development in trophic eggs is discussed.