Fig. 3. Distribution of ß-gal+ cells in the dorsal aorta
and myotomes, classified according to their myotomal labelling. (A)
The position of labelled cells in the dorsal aorta for clones within each
class is represented by grey boxes, `segments', at the corresponding somite
(S) level, for somites 1-34 at E10.5. Asterisks (*) indicate the
position of somites with ß-gal+ cells in the myotome. The
figure below each column indicates the total number of ß-gal+
cells in the dorsal aorta (DA) for each clone (Total DA). The average number
of ß-gal+ cells in the dorsal aorta per `segment' (DA/segment)
is indicated at the bottom. s.d., standard deviation, is shown in parentheses.
The number above each column identifies individual clones. The category of
clone is indicated above each group. (B) Comparison between
ß-gal+ cells per `segment' of the dorsal aorta in different
categories of clone with labelled cells in the myotome. Student's
t-test compares average values and the Snedecor F-test compares
distributions. Numbers in brackets indicate the threshold figure for a
significant statistical difference. In all cases, with a probability of
P=0.05, there is no significant difference. (C) Representation
of clones at E9.5, with a similar presentation to A.