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Visualizing the cell cycle behavior of individual cells within living organisms can facilitate the understanding of developmental processes such as pattern formation, morphogenesis, cell differentiation, growth, cell migration, and cell death. Fluorescence Ubiquitin Cell Cycle Indicator (FUCCI) technology offers an accurate, versatile, and universally applicable means of achieving this end. In recent years, the FUCCIsystem has been adapted to several model systems including flies, fish, mice, and plants, making this technology available to a wide range of researchers for studies of diverse biological problems. Moreover, a broad range of FUCCI‐expressing cell lines originating from diverse cell types have been generated, hence enabling the design of advanced studies that combine in vivoexperiments and cell‐based methods such as high‐content screening. Although only a short time has passed since its introduction, the FUCCItechnology has already provided fundamental insight into how cells establish quiescence and how G1phase length impacts the balance between pluripotency and stem cell differentiation. Further discoveries using the FUCCItechnology are sure to come. WIREs Dev Biol2015, 4:469–487. doi: 10.1002/wdev.189 This article is categorized under: Adult Stem Cells, Tissue Renewal, and Regeneration > Methods and PrinciplesTechnologies > Generating Chimeras and Lineage AnalysisTechnologies > Analysis of Cell, Tissue, and Animal Phenotypes |
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