File:Multiple developmental polarities in Drosophila border cell migration.gif

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Figure 1. Multiple developmental polarities in Drosophila border cell migration.

(A–C) Schematic of egg chambers showing the stages of border cell migration during ovarian development. Border cells form at the anterior end of the egg chamber (A), migrate between nurse cells (B), and reach the oocyte at the posterior end (C). For simplicity, individual follicle cell membranes are not shown. (D–G) Close-up view of border cell clusters, and the variety of cell polarities displayed by border cells, at the indicated stages of migration. Polar cells (brown) are always at the center of the cluster. The morphological cell polarities correspond to polarized actin, myosin, lateral, and apical markers, as shown in the key. (D) Pre-migration stage. Border cells exhibit a clear front-rear polarity. Prior to the movement between nurse cells, border cells detach from the basement membrane and delaminate from adjacent epithelial follicle cells. (E,F) Migration stage. Two views of the same cluster are shown: a three-dimensional view (E) and a two-dimensional view through the middle of the cluster (F). At this stage, border cells display inside-outside (E), apical-basal (E) and front-rear (F) polarities. (G) Post-migration stage. Once border cells reach the oocyte, they orient with the apical side touching the oocyte.
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Source https://f1000research.com/articles/5-1084 Veeman MT and McDonald JA. Dynamics of cell polarity in tissue morphogenesis: a comparative view from Drosophila and Ciona [version 1; peer review: 2 approved]. F1000Research 2016, 5(F1000 Faculty Rev):1084 (https://doi.org/10.12688/f1000research.8011.1)
Author Veeman MT and McDonald JA.
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© 2016 Veeman MT and McDonald JA. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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current00:25, 27 May 2024Thumbnail for version as of 00:25, 27 May 20241,000 × 1,123 (138 KB)Rasbak (talk | contribs){{Information |description=Figure 1. Multiple developmental polarities in Drosophila border cell migration.<br> (A–C) Schematic of egg chambers showing the stages of border cell migration during ovarian development. Border cells form at the anterior end of the egg chamber (A), migrate between nurse cells (B), and reach the oocyte at the posterior end (C). For simplicity, individual follicle cell membranes are not shown. (D–G) Close-up view of border cell clusters, and the variety of cell pola...

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