Mechanisms controlling skin heterogeneity are poorly understood. In this issue of Developmental Cell, Liang et al. show that in chicken, the difference in β-keratin genes expressed in feathered and scaly skin is regulated via typical enhancers, while differential expression within individual feathers correlates with chromatin looping within the gene cluster.

中文翻译：

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鸟如何获得羽毛：染色质循环的见解。

控制皮肤异质性的机制了解甚少。在本期《发育细胞》中，Liang等人。表明在鸡中，羽毛和鳞状皮肤中表达的β-角蛋白基因的差异是通过典型的增强子调节的，而单个羽毛中的差异表达与基因簇内的染色质环相关。