Long-lived chondroprogenitors are generated by Gli1+ fetal cells and are replenished upon mosaic cell-cycle arrest in the cartilage.
Single-cell RNA sequencing of cells dissociated from Hindlimb (femur and tibia at E14.5 embryos to identify how catch-up growth occurs during injury and to show transcriptional identities of contributors in p21-overexpression induced injury model.