Body axis elongation and segmentation are major morphogenetic events that take place
concomitantly during vertebrate embryonic development. Establishment of the final body plan …

For over a century, embryologists who studied cellular motion in early amniotes generally
assumed that morphogenetic movement reflected migration relative to a static extracellular …

Vertebrate embryos are characterized by an elongated antero-posterior (AP) body axis, which
forms by progressive cell deposition from a posterior growth zone in the embryo. Here, we …

Apoptosis plays an important role in morphogenesis, and the notion that apoptotic cells can
impact their surroundings came to light recently. However, how this applies to vertebrate …

… (B) The elongating posterior body axis of a chicken embryo. On the left, the magnified area
shows the spatial arrangement of the PD and newly formed NC, NT, and PSM, as illustrated …

… we can see medial-to-lateral movement in the caudal intermediate part (yellow arrowheads
in AC) and medial-to-lateral rotation in the anterior intermediate part (red arrowheads in A,B); …

… (C and D) Cross sections at the level of the beads in A and B, respectively. The embryo in
B is representative of the stronger effects we observed. (E–H) Treating embryos with SU5402 (…

Although cell-to-cell heterogeneity in gene and protein expression within cell populations
has been widely documented, we know little about its biological functions. By studying …

Embryogenesis is the coordinated assembly of tissues during morphogenesis through changes
in individual cell behaviors and collective cell movements. Dynamic imaging, combined …

… A′, B′, Higher magnifications of the areas framed in A and B, showing newly generated
MNs marked by the coexpression of both transcription factors at E10.5 (arrows in A′) but not …