In homeostasis of grownup vertebrate tissues, stem cells Histone deacetylases(HDAC) are believed to self-renew by infrequent and asymmetric divisions that create an additional stem cell daughter along with a progenitor daughter cell committed to differentiate. This model is based largely on in vivo invertebrate or in vitro mammal research. Here, we examine the dynamic habits of grownup hair follicle stem cells inside their ordinary setting by using selleck chemical Alisertib mice with repressible H2B-GFP expression to track cell divisions and Cre-inducible mice to perform long-term single-cell lineage tracing. We supply direct evidence for that infrequent stem cell division model in intact tissue. Also, we obtain that differentiation of progenitor cells happens at different occasions and tissue destinations than self-renewal of stem cells. Distinct fates of differentiation or self-renewal are assigned to person cells within a temporal-spatial manner. We propose that big clusters of tissue stem cells behave as populations whose maintenance includes unidirectional daughter-cell-fate choices.