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Cell and Tissue Research

, Volume 377, Issue 3, pp 445–458 | Cite as

Development and evolution of gut structures: from molecules to function

  • Rossella Annunziata
  • Carmen Andrikou
  • Margherita Perillo
  • Claudia Cuomo
  • Maria I. ArnoneEmail author
Review

Abstract

The emergence of a specialized system for food digestion and nutrient absorption was a crucial innovation for multicellular organisms. Digestive systems with different levels of complexity evolved in different animals, with the endoderm-derived one-way gut of most bilaterians to be the prevailing and more specialized form. While the molecular events regulating the early phases of embryonic tissue specification have been deeply investigated in animals occupying different phylogenetic positions, the mechanisms underlying gut patterning and gut-associated structures differentiation are still mostly obscure. In this review, we describe the main discoveries in gut and gut-associated structures development in echinoderm larvae (mainly for sea urchin and, when available, for sea star) and compare them with existing information in vertebrates. An impressive degree of conservation emerges when comparing the transcription factor toolkits recruited for gut cells and tissue differentiation in animals as diverse as echinoderms and vertebrates, thus suggesting that their function emerged in the deuterostome ancestor.

Keywords

Echinoderm Gastrointestinal system Pancreas Sphincter Gene regulatory network 

Notes

Funding

This work was partially supported by the Marie Curie ITN EVONET (project 215781) to MIA (and fellowship to CA), fellowship of the SZN PhD program (to CC, MP and RA) and fellowships POR Campania FSE 2007–2013 Project MODO, Model Organism (to CA, MP and RA).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.

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© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Biology and Evolution of Marine OrganismsStazione Zoologica Anton DohrnNaplesItaly
  2. 2.Sars International Centre for Marine Molecular BiologyUniversity of BergenBergenNorway
  3. 3.Department of Molecular and Cell Biology and BiochemistryBrown UniversityProvidenceUSA

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