Results 41 to 50 of about 10,115 (192)
Gastrulation in the sea urchin
Gastrulation is arguably the most important evolutionary innovation in the animal kingdom. This process provides the basic embryonic architecture, an inner layer separated from an outer layer, from which all animal forms arise. An extraordinarily simple and elegant process of gastrulation is observed in the sea urchin embryo. The cells participating in
McClay, David R.+4 more
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Nematode Gastrulation: Having a BLASTocoel! [PDF]
During gastrulation of the nematode worm Caenorhabditis elegans, individual cells ingress into a solid ball of cells. Gastrulation in a basal nematode, in contrast, has now been found to occur by invagination into a blastocoel, revealing an unanticipated embryological affinity between nematodes and all other triploblastic metazoans.
Pradeep M. Joshi, Joel H. Rothman
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Summary: The mechanism by which morphogenetic signals engage the regulatory networks responsible for early embryonic tissue patterning is incompletely understood.
Himanshu Kaul+8 more
doaj
Regionalized tissue fluidization is required for epithelial gap closure during insect gastrulation
Many animal embryos pull and close an epithelial sheet around the ellipsoidal egg surface during a gastrulation process known as epiboly. The ovoidal geometry dictates that the epithelial sheet first expands and subsequently compacts.
Akanksha Jain+12 more
semanticscholar +1 more source
Retinoic Acid is Required for Normal Morphogenetic Movements During Gastrulation
Retinoic acid (RA) is a central regulatory signal that controls numerous developmental processes in vertebrate embryos. Although activation of Hox expression is considered one of the earliest functions of RA signaling in the embryo, there is evidence ...
Michal Gur+3 more
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In vitro culture of cynomolgus monkey embryos beyond early gastrulation
In vitro development of monkey embryos Owing to technical and ethical limitations, the molecular and cellular mechanisms underlying primate gastrulation are far from clear (see the Perspective by Tam).
Huaixiao Ma+12 more
semanticscholar +1 more source
A spatially resolved single cell atlas of human gastrulation
Gastrulation is the fundamental process during the embryogenesis of all multicellular animals through which the basic body plan is first laid down. It is pivotal in generating cellular diversity coordinated with spatial patterning. Gastrulation in humans
R. Tyser+5 more
semanticscholar +1 more source
A Developmental Requirement for HIRA-Dependent H3.3 Deposition Revealed at Gastrulation in Xenopus
Discovering how histone variants that mark distinct chromatin regions affect a developmental program is a major challenge in the epigenetics field. To assess the importance of the H3.3 histone variant and its dedicated histone chaperone HIRA, we used an ...
Emmanuelle Szenker+2 more
doaj +1 more source
Furry is required for cell movements during gastrulation and functionally interacts with NDR1
Gastrulation is a key event in animal embryogenesis during which germ layer precursors are rearranged and the embryonic axes are established. Cell polarization is essential during gastrulation, driving asymmetric cell division, cell movements, and cell ...
Ailen S. Cervino+5 more
doaj +1 more source
Actomyosin-based Self-organization of cell internalization during
Background Gastrulation is a key transition in embryogenesis; it requires self-organized cellular coordination, which has to be both robust to allow efficient development and plastic to provide adaptability.
Pohl Christian+4 more
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