The evolution of insect metamorphosis is one of the most important sagas in animal history,
transforming small, obscure soil arthropods into a dominant terrestrial group that has …

Vitellogenesis is pre-requisite to insect egg production and embryonic development after
oviposition. During insect vitellogenesis, the yolk protein precursor vitellogenin (Vg) is …

The synthesis of vitellogenin and its uptake by maturing oocytes during egg maturation are
essential for successful female reproduction. These events are regulated by the juvenile …

Around 150 million years ago, eusocial termites evolved from within the cockroaches, 50
million years before eusocial Hymenoptera, such as bees and ants, appeared. Here, we …

Aristotle made important contributions to the study of developmental biology, including the
complete metamorphosis of insects. One concept in particular, that of the perfect or complete …

In both vertebrates and insects, developmental transition from the juvenile stage to
adulthood is regulated by steroid hormones. In insects, the steroid hormone, 20 …

Since it was first postulated by Wigglesworth in 1934, juvenile hormone (JH) is considered a
status quo hormone in insects because it prevents metamorphosis that is initiated by the …

Juvenile hormone (JH) represses precocious metamorphosis of larval to pupal and adult
transitions in holometabolous insects. The early JH-inducible gene Krüppel homolog 1 (Kr …

Synthetic compounds that mimic the action of juvenile hormones (JHs) are founding
members of a class of insecticides called insect growth regulators (IGRs). Like JHs, these …

The molecular control of insect metamorphosis from larva to pupa to adult has long been a
mystery. The Broad and E93 transcription factors, which can modify chromatin domains, are …