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Título: | How stage identity is established in insects: the role of the Metamorphic Gene Network |
Autor: | Martín Casacuberta, David A. CSIC ORCID ; Chafino, Silvia CSIC ORCID; Franch-Marro, Xavier CSIC ORCID | Fecha de publicación: | feb-2021 | Editor: | Elsevier | Citación: | Current Opinion in Insect Science 43: 29-38 (2021) | Resumen: | Proper formation of adult insects requires the integration of spatial and temporal regulatory axes. Whereas spatial information confers identity to each tissue, organ and appendage, temporal information specifies at which stage of development the animal is. Regardless of the type of post-embryonic development, either hemimetabolous or holometabolous, temporal specificity is achieved through interactions between the temporal identity genes Kr-h1, E93 and Br-C, whose sequential expression is controlled by the two major developmental hormones, 20-hydroxyecdysone and Juvenile hormone. Given the intimate regulatory connection between these three factors to specify life stage identity, we dubbed the regulatory axis that comprises these genes as the Metamorphic Gene Network (MGN). In this review, we survey the molecular mechanisms underlying the control by the MGN of stage identity and progression in hemimetabolous and holometabolous insects. | Descripción: | This review comes from a themed issue on Development and regulation. | Versión del editor: | http://doi.org/10.1016/j.cois.2020.10.002 | URI: | http://hdl.handle.net/10261/241919 | DOI: | 10.1016/j.cois.2020.10.002 | Identificadores: | doi: 10.1016/j.cois.2020.10.002 e-issn: 2214-5745 |
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