This is the same embryo as
the one you just observed and lineaged. The lineaging has been
completed up to 100-cell embryonic stage. You may find it interesting
to constuct a 4D map for the embryonic development using the movies
* Click on the link
to observe the development for individual focal plane with an
example family tree of cells constructed
The Coding System:
Dr. Sulston’s naming system was followed in lineaging this embryo.
However, as the embryo divides, the dividing cells becoming smaller
and the cells’ name becoming longer. Thus, it is difficult to put
the whole name on the recorded embryo (especially for AB and MS
series cells). Therefore, a number is used instead of a letter to
indicate the location for AB and MS series cells.
Note: Only D
series cells were recorded in black. Due to the
recording imperfection, some of the AB
cells were recorded in black with partial digit
showed (like 57
in the upper right corner was recorded as 5 at
Time Elapsed 02:28:40 in focal plane 3). Please only use the name
recorded in red for AB
series in the embryonic development.
Thought: What does the 4D map look
like? At any time point, are cells in focal plane 1 also in focal
plane 12 or other focal planes? Pick a cell (e.g.: AB) and pretend
that you are that cell. How big are you, where are you and what
will you become?