Click here to close Hello! We notice that you are using Internet Explorer, which is not supported by Echinobase and may cause the site to display incorrectly. We suggest using a current version of Chrome, FireFox, or Safari.
Echinobase
ECB-ART-51842
Nat Commun 2021 Jun 29;121:4032. doi: 10.1038/s41467-021-24346-8.
Show Gene links Show Anatomy links

Cnidarian-bilaterian comparison reveals the ancestral regulatory logic of the β-catenin dependent axial patterning.

Lebedeva T , Aman AJ , Graf T , Niedermoser I , Zimmermann B , Kraus Y , Schatka M , Demilly A , Technau U , Genikhovich G .


???displayArticle.abstract???
In animals, body axis patterning is based on the concentration-dependent interpretation of graded morphogen signals, which enables correct positioning of the anatomical structures. The most ancient axis patterning system acting across animal phyla relies on β-catenin signaling, which directs gastrulation, and patterns the main body axis. However, within Bilateria, the patterning logic varies significantly between protostomes and deuterostomes. To deduce the ancestral principles of β-catenin-dependent axial patterning, we investigate the oral-aboral axis patterning in the sea anemone Nematostella-a member of the bilaterian sister group Cnidaria. Here we elucidate the regulatory logic by which more orally expressed β-catenin targets repress more aborally expressed β-catenin targets, and progressively restrict the initially global, maternally provided aboral identity. Similar regulatory logic of β-catenin-dependent patterning in Nematostella and deuterostomes suggests a common evolutionary origin of these processes and the equivalence of the cnidarian oral-aboral and the bilaterian posterior-anterior body axes.

???displayArticle.pubmedLink??? 34188050
???displayArticle.link??? Nat Commun
???displayArticle.grants??? [+]


References [+] :
Amiel, A bipolar role of the transcription factor ERG for cnidarian germ layer formation and apical domain patterning. 2017, Pubmed