Three-dimensional structural evolution of the cuttlefish Sepia officinalis shell from embryo to adult stages.

ABSTRACT: The cuttlefish shell is an internal structure with a composition and general organization unique among molluscs. Its formation and the structure-function relation are explored during Sepia officinalis development, using computerized axial tomography scanning (CAT-scan) three-dimensional analyses coupled to physical measurements and modelling. In addition to the evolution of the overall form, modifications of the internal structure were identified from the last third embryonic stages to adult. Most of these changes can be correlated to life cycle stages and environmental constraints. Protected by the capsule during embryonic life, the first internal chambers are sustained by isolated pillars formed from the dorsal to the ventral septum. After hatching, the formation of pillars appears to be

SUBMITTER: Le Pabic C 

PROVIDER: S-EPMC6769316 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature