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. 2017 Jul 27;13(7):e1006903. doi: 10.1371/journal.pgen.1006903

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© 2017 Thierion et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 2 — Cooperation in cis between elements A and C. (A) In situ hybridization for Krox20 mRNA was performed on wild type (WT), Krox20^+/Cre, Krox20^ΔA/ΔA, Krox20^ΔC/ΔC and composite heterozygous Krox20^ΔA/ΔC embryos at the indicated somite stages. (B) In situ hybridization for Krox20 mRNA was performed on Krox20^+/Cre and Krox20^Cflox/Cre embryos at the indicated somite stages. In (A) and (B) embryos were flat-mounted with anterior toward the top.