Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Tail regeneration"”.
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teashirt is required for head-versus-tail regeneration polarity in planarians
Regeneration requires that the identities of new cells are properly specified to replace missing tissues. The Wnt signaling pathway serves a central role in specifying posterior cell fates during planarian regeneration. We identified a gene encoding a homolog of the Teashirt family of zinc finger …
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Studying the Molecular Mechanisms for Generating Progenitor Cells during Tail Regeneration in Ambystoma mexicanum
… the molecular mechanisms that underlie urodele regeneration. Urodele amphibians (newts and salamanders) are among the few vertebrates with the remarkable ability to regenerate lost body appendages, like the limbs and the tail. Urodele tail and limb regeneration occurs via blastemal epimorphic …
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The energetic consequences of tail loss to juvenile lizards
… the hypothesis that juveniles of species whose tail is important for predator deflection should allocate energy preferentially to tail growth at the expense of body growth. Relative linear tail growth (linear tail growth/linear body growth) and relative mass tail growth (tail mass growth/body …
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Development of transgenic Ambystoma mexicanum (axolotl) to study cell fate during development and regeneration
… axolotls is crucial for studying development and regeneration, as it would allow for long-term fate tracing as well as gene expression analysis, therefore we were interested in both obtaining animals expresing the transgene with little mosaicism in F0 generation and transgenesis. We demonstrate …
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Activin signaling controls a wound-induced program essential for regenerative patterning
A central problem in animal regeneration is how animals determine what body part to regenerate. Planarians are flatworms that can regenerate any missing body part, and are studied to identify mechanisms underlying regeneration. At transverse amputation planes, a poorly understood mechanism …
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Bmp proteins in urodele myotube cell cycle re-entry and in regeneration
… Bmp signaling in vivo causes defects in axolotl tail regeneration.
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Molecular Characterization of Early Dedifferentiation in Newt Forelimb Regeneration
… and tissues as adults, including the limbs. Limb regeneration occurs via the dedifferentiation of stump tissue and the formation of a blastema, which provides the majority of cells for the regenerate. Despite all that we have learned about dedifferentiation and blastema formation, the cellular and …
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Positional Information in Adult Bilaterian Tissues
… in a predictable, repeatable formation. In regeneration, missing tissue is reformed in a manner that recapitulates that which was lost, including shape, orientation, and internal structure. These challenging biological processes require positional information, which influences spatial fate …
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Cellular principles of Xenopus appendage regeneration
… their lost appendages, such as limbs and tails. To identify cellular principles driving this ability, I investigated Xenopus laevis tadpoles. Tadpoles can regrow their lost tails and limbs only at specific developmental stages, allowing comparative studies to determine principles of …