The zebrafish Hairy/Enhancer-of-split-related gene her6 is segmentally expressed during the early development of hindbrain and somites
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Updated: Oct 9, 2026

Zebrafish Whole Mount High-Resolution Double Fluorescent In Situ Hybridization
Published on: March 25, 2009
A Pasini1, D Henrique, D G Wilkinson
1Division of Developmental Neurobiology, National Institute for Medical Research, The Ridgeway, Mill Hill, NW7 1AA, London, UK.
Several vertebrate genes of the Hairy/Enhancer-of-split (HES) family are involved in paraxial mesoderm segmentation and intersomitic boundary establishment/maintenance. Here, we show that the zebrafish hairy-related gene, her6, highly homologous to the mammalian and chicken HES-1 genes, is expressed in the posterior part of each segmented somite and in stripes in the anterior presomitic mesoderm (PSM), and also in a dynamic, segmentally restricted pattern during hindbrain segmentation, with all rhombomeres expressing her6 at different time points and at different levels.
Several vertebrate genes of the Hairy/Enhancer-of-split (HES) family are involved in paraxial mesoderm segmentation and intersomitic boundary establishment/maintenance. Here, we show that the zebrafish hairy-related gene, her6, highly homologous to the mammalian and chicken HES-1 genes, is expressed in the posterior part of each segmented somite and in stripes in the anterior presomitic mesoderm (PSM), and also in a dynamic, segmentally restricted pattern during hindbrain segmentation, with all rhombomeres expressing her6 at different time points and at different levels.

