Extended Data Fig. 9: Cell density is uniform along the anteroposterior axis.
From: A fluid-to-solid jamming transition underlies vertebrate body axis elongation
a, Measured cell number density (cells per unit volume) in the MPZ, P-PSM and A-PSM. Mean ± s.e.m. Cell density does not vary significantly along the anteroposterior axis (within the 10% accuracy of our 3D measurements; Methods). b, 3D reconstructions of confocal stacks showing nuclei labelled with H2B::RFP, detected nuclei positions, and composition of both. Cell density was measured using 3D data of nuclear positions in the different regions (n = 7,866, 7,214, 11,537 detected cells in 694, 694, 833 defined boxes in 5, 5, 6 embryos, in A-PSM, P-PSM, MPZ, respectively; Methods).
