Appearance of "Giant Egg" Mutant of Bombyx mori (Lepidoptera: Bombycidae). 4. Surface Structure of Eggshell in Ge egg.

phytanoyl-CoA dioxygenase domain-containing protein 1 plays an important role in egg shell formation of silkworm (Bombyx mori)

“…As oocyte increases in size, more follicular cells are required to secrete chorion proteins to form eggshell. During the eggshell formation of Ge , the number of follicular cells significantly increases compared with that of normal eggs [ 28 ], indicating that giant eggs increase the ovoid shape by increasing the number of follicular cells during eggshell formation. Hence, the occurrence of giant eggs is a passive reaction caused by the increase in the egg contents.…”

Physiological Activities of Anti-Juvenile Hormone Agents Against Insects and Their Role For Devising Fourth Generation Insecticides: A Comprehensive Review

“…Many imidazoles and their analogues had been studied in the recent 30 years for inducing trimolter silkworms (for review see Wu et al (2013). For some detail, many imidazole derivatives, such as KK-22, KK-42, KK-110, have been proved to be promising compounds in sericulture, from the standpoint of producing fine cocoon filament in B. mori (Akai et al, 1986), increasing efficiency of egg production (Kawaguchi et al, 1993) and breaking of diapause in pharate first instar larvae of the wild silk moth Antheraea yammami (Suzuki et al, 1989). However, some reported research works about the effectiveness of these compounds as trimolter inducers in silkworms, can be reviewed herein.…”