AbstractClassic studies have shown that the presomitic mesoderm is already committed to a specific morphological fate, for example, the ability to generate a rib. Hox gene expression in the paraxial mesoderm has also been shown to be fixed early and not susceptible to modulation by an ectopic environment. This is in contrast to the plasticity of Hox expression in neuroectodermal derivatives. We reexamine here the potential of somites for morphological plasticity by transplanting the cranial (occipital) somites 1–4, that normally produce small contributions to the skull, to the trunk of avian embryos. Surprisingly, the transposed cranial somites are able to form reasonably normal vertebral anlage. In addition, the cranial somitic mesoderm pr...
Previous work has implicated Hox genes in the development of the branchial region. At 8 1/2 days I h...
AbstractThe vertebrae are derived from the sclerotome of somites. Formation of the vertebral body in...
AbstractStudies of the programming of Hox patterns at anterior spinal levels suggest that these even...
AbstractClassic studies have shown that the presomitic mesoderm is already committed to a specific m...
The successful organization of the vertebrate body requires that local information in the embryo be ...
A critical stage in the development of all vertebrate embryos is the generation of the body plan and...
AbstractThe developing vertebrate hindbrain consists of segments known as rhombomeres, which express...
In vertebrates, the total number of vertebrae is precisely defined. Vertebrae derive from embryonic ...
The axial skeleton in all vertebrates is composed of similar components that extend from anterior to...
To understand the function of murine homeobox genes, a genetic analysis is mandatory. We generated g...
AbstractThe anterior–posterior identities of cells in the hindbrain and cranial neural crest are tho...
AbstractDuring vertebrate embryogenesis, the paraxial mesoderm becomes segmented into somites, which...
To investigate whether Hoxb1, as well as related proteins Hoxa1 and Hoxb2, are involved in vertebral...
AbstractThe evolution of chordates was accompanied by critical anatomical innovations in craniofacia...
Formation of the vertebrate axial skeleton requires coordinated Hox gene activity. Hox group 6 genes...
Previous work has implicated Hox genes in the development of the branchial region. At 8 1/2 days I h...
AbstractThe vertebrae are derived from the sclerotome of somites. Formation of the vertebral body in...
AbstractStudies of the programming of Hox patterns at anterior spinal levels suggest that these even...
AbstractClassic studies have shown that the presomitic mesoderm is already committed to a specific m...
The successful organization of the vertebrate body requires that local information in the embryo be ...
A critical stage in the development of all vertebrate embryos is the generation of the body plan and...
AbstractThe developing vertebrate hindbrain consists of segments known as rhombomeres, which express...
In vertebrates, the total number of vertebrae is precisely defined. Vertebrae derive from embryonic ...
The axial skeleton in all vertebrates is composed of similar components that extend from anterior to...
To understand the function of murine homeobox genes, a genetic analysis is mandatory. We generated g...
AbstractThe anterior–posterior identities of cells in the hindbrain and cranial neural crest are tho...
AbstractDuring vertebrate embryogenesis, the paraxial mesoderm becomes segmented into somites, which...
To investigate whether Hoxb1, as well as related proteins Hoxa1 and Hoxb2, are involved in vertebral...
AbstractThe evolution of chordates was accompanied by critical anatomical innovations in craniofacia...
Formation of the vertebrate axial skeleton requires coordinated Hox gene activity. Hox group 6 genes...
Previous work has implicated Hox genes in the development of the branchial region. At 8 1/2 days I h...
AbstractThe vertebrae are derived from the sclerotome of somites. Formation of the vertebral body in...
AbstractStudies of the programming of Hox patterns at anterior spinal levels suggest that these even...