...-related vitellogenesis is uncoupled from life-shortening high juvenile hormone (JH)-titres in the honeybee and from insulin/insulin-like growth factor signalling (IIS) activity in ants. In termites, similarly, vitellogenesis seems tissue-specifically unlinked from JH signalling and IIS activity might have...

... , and further explored its potential effect on vitellogenesis. Firstly, cDNAs encoding C-type allatostatin ( Sp-AST-C ) precursor and its putative receptor ( Sp-AST-CR ) were isolated. Subsequently, RT-PCR revealed that Sp-AST-C was mainly expressed in the nervous tissue, middle gut and heart, whereas Sp-AST-CR...

..., similar use of warm retreat sites and similar sprint speeds. Thus, consistent evidence for adaptive prolongation of pregnancy was lacking. Unusually for squamates, pregnant females can begin vitellogenesis before giving birth, and a profound drop in maternal body temperature near the end of pregnancy...

... anautogenous mosquitoes are effective disease vectors. During mosquito vitellogenesis, a key process in reproduction, yolk protein precursor (YPP) gene expression is activated specifically in the fat body, the insect analogue of the vertebrate liver. We have demonstrated that blood meal derived amino acids...