Global ETD Search
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Showing 1 to 3 of 3 for “"spiralian"”.
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Dorsal-Ventral Patterning in the Mud Snail, Ilyanassa obsoleta
… snail, Ilyanassa obsoleta. Ilyanassa and other spiralians utilize an embryonic organizer to induce dorsal identity, and thus establish the bilateral axis. The D macromere embryonic organizer in Ilyanassa is specified at the four-cell stage by the inheritance of the polar lobe, but does not …
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Comparative embryology and muscle development of polyclad flatworms (Platyhelminthes: Rhabditophora)
… is still scarce and most of the work on spiralian development has focused on mollusks and annelids. In view of polyclad embryonic significance, a comparative study of their embryonic development including several species of direct and indirect developers was performed.</p><p>Developing …
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Patterning the Mud Snail Ilyanassa obsoleta: The Role of Cell Signaling and Asymmetric Protein Localization
The polar lobe of Ilyanassa is asymmetrically partitioned into the D lineage of cells. Two of these cells, 3D and 4d, induce proper axial cell fate patterning in the embryo. Based on known embryological data in Ilyanassa, I hypothesized that Notch signaling would be required for this induction. I …