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<jats:p>Neural crest (NC) is a vertebrate-specific population of multipotent embryonic cells predisposed to particular derivatives along the anteroposterior (A-P) axis. While only cranial NC progenitors give rise to ectomesenchymal cell types, trunk NC is biased for neuronal cell fates. By integrating multimodal single-cell analysis we uncovered heterogenous NC cells across the entire A-P axis expressing NC regulator foxd3. We pinpointed to its specific cranial and trunk auto-regulated enhancers. The trunk foxd3 enhancer, however, did not mark the bona fide NC, but bipotent tailbud neuromesodermal progenitors (NMps). A subset of these NMp-derived pro-neural cells appeared to give rise to neuronal trunk NC in amniotes in vivo, suggesting that at least a portion of trunk NC progenitors with a bias for neuronal fates originated from NMps in vivo.</jats:p>

Original publication

DOI

10.1101/2021.02.10.430513

Type

Journal article

Publisher

Cold Spring Harbor Laboratory

Publication Date

10/02/2021