File:Koller's Sickle and Avian Gastrulation.jpg
![File:Koller's Sickle and Avian Gastrulation.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/6/69/Koller%27s_Sickle_and_Avian_Gastrulation.jpg/599px-Koller%27s_Sickle_and_Avian_Gastrulation.jpg?20161117081444)
Original file (1,967 × 1,968 pixels, file size: 863 KB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]DescriptionKoller's Sickle and Avian Gastrulation.jpg |
Image of avian gastrulation and Koller's sickle's role. Figure 2. Simulation of differentiation in the early epiblast. The embryo in these simulations contains (initially) 625 cells, i.e. 1 simulated cell corresponds to 16 cells in the real embryo. (A) Simulation showing that the embryo attains a stable circular shape, provided that the adhesion between cells is strong enough (J1,2>2J2,2). (B) To create the AP and AO we assign the AP cell type (red) to all cells whose centre-of-mass lies inside a circle of radius 77 voxels from the center of the embryo and the AO cell type (green) to the remaining cells. The AO (green cells) correspond to the AO in Fig. 1A (area where Wnt8c RNA is expressed). (C) Concentration field of the differentiation morphogen in the epiblast (according to Eq. 9). Gray-scale indicates concentration from 0 (black) to 1.5 (white). (D) Simulation of mesoderm (blue) differentiation. AP cells differentiate into mesoderm if the concentration of the differentiation morphogen in (C) is greater than 0.7. Blue cells form a Koller's Sickle, i.e. corresponding to the Wnt8c RNA expressing area in Fig. 1B. See Supplementary Materials Movie S2 for a movie of this process. See Simulation Details and Supplementary Materials Table S1 for the model architecture and parameter values. Simulations generated using the code in Supplementary Materials Code S1. |
Source | http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0010571 |
Author | Vasiev |
Permission (Reusing this file) |
http://www.plosbiology.org/static/license.action |
Licensing
[edit]![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
Original upload log
[edit]Date/Time | Dimensions | User | Comment |
---|---|---|---|
2013-11-13 20:44:49 | 1967× 1968× | Allielew00 | Uploading a file from a free published source using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]] |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 08:14, 17 November 2016 | ![]() | 1,967 × 1,968 (863 KB) | FastilyClone (talk | contribs) | Transferred from en.wikipedia (MTC!) |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on en.wikipedia.org
- Usage on nl.wikipedia.org
- Usage on www.wikidata.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Orientation | Normal |
---|---|
Horizontal resolution | 233.27 dpi |
Vertical resolution | 233.27 dpi |