Alteration of egg character in the emi mutation of Bombyx mori by the application of 20-hydroxyecdysone

摘要

The influence of exogenous 20-hydroxyecdysone on the expression of the miniature egg (emi) mutation of Bombyx mori was investigated. Female pupae of emi injected with the hormone produced larger and heavier eggs than the inherent emi eggs. The enlarged emi eggs were approximately similar to the normal eggs, indicating that the administration of 20-hydroxyecdysone recovered the inferiority of the emi character.