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Embryonic Stage/Time Correlation Table 2

Standard Temperature: 20 degree C

Embryonic Stage Time Comments
     
proliferating embryo (=early) 0-350min Until cleavage is over
elongating embryo (=mid) 350-620min During elongation
fully_elongated embryo 
(=late =pre-hatched = morphogenetic)
620-800min After elongation
   
 
pre_gastrula embryo
0-100min
Until gastrulation starts
gastrulating embryo
100-290min During gastrulation
enclosing embryo
290-350min
(proposed)
late cleavage stage embryo 210-350min At least 200 cells, not elongated yet
bean embryo 350-390min Elongation started, but not comma yet
comma embryo 390-420min According to Sulston figure
1.5-fold embryo 420-460min According to Sulston figure
2-fold emrbyo 460-520min According to Sulston figure
3-fold embryo (=pretzel) 520-620min According to Sulston figure, and M. Labouesse
     
1-cell embryo
-50 - 0 min
Included in pre-gastrulation embryo
2-cell embryo
0-20min
Included in pre-gastrulation embryo
4-cell embryo
20-40min
Included in pre-gastrulation embryo
(.. other -cell embryos)
---
(proposed)
51-cell embryo
120-135min Will replace the original "50-70 cell embryo"
.(.. other -cell embryos)
---
(proposed)
88-cell embryo
145-150min Will replace the original "90 cell embryo"
.(..other -cell embryos)
---
(proposed)

Color Code:

Apple red : going to be removed from wormbase
Sea blue: going to be added to wormbase
black: orginally exist and will remain in wormbase
clover: proposed, will not be added to wormbase until encountered during curation.
 
 

Graphic Display of relationships among Life_stages


 

Explanations on WormBase Life_stages:

We are going to have 3 threads to describe embryonic Life_stages. Each of these threads will cover the whole embryonic life stages from 0min to 800min. The order they are listed are their time-order.
Example: "proliferating" is followed by "elongating", then by "fully-elongated".

        Thread A: proliferating/elongating/fully-elongated
        Thread B: pre-gastrulation/gastrulating/.../3-fold/fully-elongated
        Thread C: 1-cell/2-cell/.../51-cell/.../88-cell/...

See the color code listed above for the status of each Life-stage.
 


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