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Diapause hormone (DH) targets developing ovaries in female pupae to induce embryonic diapause immediately after completion of mesoderm segregation of the silkworm, Bombyx mori. At the same time, DH enhances trehalase activity on the oolemma, which leads to higher concentrations of glycogen in oocytes through the stimulated incorporation of hemolymph trehalose. In B. mori, the treh-1 and -2 genes encoding...