The transcription factor Tcf21 is necessary for adoption of cell fates by Foxd1+ stromal progenitors during kidney development. - Finer G; Yacu GS; Khan MD; Zhou Y; Gadhvi G; Ward SE; Sayed M; Gomez RA; Sequeira-Lopez MLS; Park JS; Lim HW; Quaggin SE; et al. (American journal of physiology. Renal physiology, 2026)