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. Author manuscript; available in PMC: 2021 Jun 8.
Published in final edited form as: Dev Cell. 2020 Jun 8;53(5):561–576.e9. doi: 10.1016/j.devcel.2020.05.007

Figure 7. The Three-Factor Hypothesis of How Region-Specific β-Keratin Expression May Be Established via the Two-Mode Epigenetic Strategy.

Figure 7.

Throughout the body, the differences are controlled by the enhancer-driven uniform expression of subclustered genes. Whereas within feather differences are controlled by intra-cluster chromatin looping.