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Integrative Biology of Marine Organisms
UMR 7232


Ciona intestinalis embryo at stage 21. Expression of KLF1/2/4 and Msxb (Agnès Roure ©)


















Research unit of the CNRS and the Sorbonne University (UMR 7232)

  • Director : Hector Escriva (hector.escriva @ obs-banyuls.fr)
  • Administration : Didier Peuzé

Address :
Observatoire Océanologique
1 avenue Pierre Fabre
66650 Banyuls sur mer - France

Tel : +33 (0)
E-mail didier.peuze @ obs-banyuls.fr


The main purpose of the "Integrated Biology of Marine Organisms (BIOM)" research unit is to study, in an evolutionary approach, the mechanisms of development and adaptation of marine organisms. This very general objective is achieved through the use of non-conventional marine model organisms allowing comparative studies complementary to those carried out with more traditional models. This type of approach is based both on the specificities related to the diversity of the organisms studied, but also on the profound unity of the living world which allows comparisons between organisms that are in many cases phylogenetically very distant from each other.


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    • New publication (DEEVA group)

      The ascidians are surrounded by their tunic, a sort of exoskeleton made of extracellular material, cellulose in particular, secreted by the epidermis. In larvae, this tunic differentiates into fins that are essential for swimming.
      The DEEVA group has elucidated some molecular mechanisms that regulate this specific 3D morphogenesis of an extracellular matrix. The results are published in BMC Biology

    • Looking for a PhD?

      The DEEVA team proposes a PhD research project on the formation of cellulosic fins in ascidians. This project stems from a study that we have recently published. Fellowship to be obtained through competitive selection of the doctoral school Complexité du Vivant(ED515). Details of the project and application using the ADUM website. Deadline 7 june 2024. Contact: sebastien.darras at obs-banyuls.fr

    • New publication (DEEVA group)

      The genome of Clavelina lepadiformis. A collaboration between the DEEVA group and the bioinformatic service BSBII allowed to generate an annotated genome for a colonial ascidian that is very common on our shores, the light-bulb sea squirt Clavelina lepadiformis. This work has been funded through the AscidianDiversity project (Diversity of Biological Mechanisms 2020 call from CNRS Biologie) and the...

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