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. 2015 Feb 3;9:3. doi: 10.3389/fnana.2015.00003

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Copyright © 2015 Domínguez, González and Moreno.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Comparative aspects of the suprachiasmatic (SC) territory between amphibians and reptiles. Photomicrographs of transverse (C,F,I–K) and sagittal (A,B,D,E,H,M) sections through the developing SC territory of Xenopus (A–H) and Pseudemys (I–M) illustrating its molecular profile based on the combinatorial expression of different transcription factors and neuropeptides indicated in each figure. The developmental stage in the cases of Xenopus is also marked. (G) and (L) are summarizing schemes of lateral views of the brains in which the main molecular features of the SC region are illustrated according to the color code indicated. In both schemes, a transverse section through the level indicated on the lateral view of the brain is illustrated. Scale bars = 25 μm (D,H), 50 μm (B,C,E,F), 100 μm (A,K), 200 μm (I,J,M).