Concept
Chordata
Publications associées (16)
Reaction wavefront theory of notochord segment patterning
The vertebrate axis is segmented into repetitive structures, the vertebrae. In fish, these segmented structures are thought to form from the paraxial mesoderm and the adjacent notochord. Recent work revealed an autonomous patterning mechanism in the zebraf ...
FRONTIERS MEDIA SA2022"Fill the Gap" - Un tiny-quartier à Pully
Les lieux communément appelés « dents-creuses » en milieu urbain, désignent des petits lots vierges de construction entre deux bâtiments ; ils sont souvent les résidus d’une ancienne zone agricole. Cette expression pourrait s’appliquer à des parcelles de p ...
2020Control of Bio-Inspired Sprawling Posture Quadruped Robots with an Actuated Spine
Sprawling posture robots are characterized by upper limb segments protruding horizontally from the body, resulting in lower body height and wider support on the ground. Combined with an actuated segmented spine and tail, such morphology resembles that of s ...
EPFL2018Conservation and Divergence of Regulatory Strategies at Hox Loci and the Origin of Tetrapod Digits
Denis Duboule, Marion Leleu, Daniël Noordermeer
The evolution of tetrapod limbs from fish fins enabled the conquest of land by vertebrates and thus represents a key step in evolution. Despite the use of comparative gene expression analyses, critical aspects of this transformation remain controversial, i ...
Public Library Science2014Stable carbon and oxygen isotope compositions of extant crinoidal echinoderm skeletons
Anders Meibom, Jaroslaw Hubert Stolarski
The variability of delta C-13 and delta O-18 was determined within the columnal facet of individual ossicles, within different regions of skeletons and within bulk skeletons of extant stalked crinoids. Isotopic compositions of individual ossicles may vary ...
2012