Where did the pupa come from? The timing of juvenile horrmone signalling supports homology between stages of hemimetabolous and holometabolous insects

0507823 - BC 2020 RIV GB eng J - Journal Article
Jindra, Marek
Where did the pupa come from? The timing of juvenile horrmone signalling supports homology between stages of hemimetabolous and holometabolous insects.
Philosophical Transactions of the Royal Society B-Biological Sciences. Roč. 374, č. 1783 (2019), č. článku 20190064. ISSN 0962-8436. E-ISSN 1471-2970
R&D Projects: GA ČR GA15-23681S
Institutional support: RVO:60077344
Keywords : metamorphosis * evolution * juvenile hormone
OECD category: Developmental biology
Impact factor: 5.680, year: 2019
Method of publishing: Limited access
https://royalsocietypublishing.org/doi/10.1098/rstb.2019.0064

Where does the 'miracle' of metamorphosis of caterpillars to beautiful butterflies have its origin has taunted thinkers since Aristotle. Particularly enigmatic is the origin of the pupa, a transitory stage between the caterpillar and the adult butterfly. The debate is on to this day. One hypothesis sees the caterpillars and other insect larvae as embryos and the pupa as a continuation of their interrupted development. A competing view has it that insect larvae and pupae have evolved to their specialized forms gradually from primitive ancestors, and that their development is continuous. The latter hypothesis, advocated by the author of this review, gains support as we begin to understand how hormones work to navigate insect development.
Permanent Link: http://hdl.handle.net/11104/0300126