DORSOVENTRAL PATTERNING IN HEMICHORDATES: INSIGHTS INTO EARLY CHORDATE EVOLUTION.

We have compared the dorsoventral development of hemichordates and chordates to deduce the organization of their common ancestor, and hence to identify the Accessories evolutionary modifications of the chordate body axis after the lineages split.In the hemichordate embryo, genes encoding bone morphogenetic proteins (Bmp) 2/4 and 5/8, as well as sev

Magma emplacement is commonly accommodated by uplift of the overburden and free surface.By assuming this deformation is purely elastic, we can invert the shape and Glass Bubbler kinematics of ground deformation to model the geometry and dynamics of underlying intrusions.However, magma emplacement can be accommodated by viscoelastic and/or inelastic