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. 2018 May 18;12:42. doi: 10.3389/fnana.2018.00042

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Copyright © 2018 Moreno, López, Morona, Lozano, Jiménez and González.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner 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 Isl1/Nkx2.1 expression in the telencephalon. Photomicrographs of sagittal (A–C) and transverse (D–P) sections through the telencephalon of Protopterus dolloi (A–E), Neoceratodus forsteri (F,G,N–P) and Pleurodeles waltl (H–M). In the telencephalon, the combined immunohistochemical detection of Isl1 (green) and Nkx2.1 (red), expressed in the subpallium, clearly allowed the identification of the boundaries of this region and the identification of the marked areas. Arrowheads point to Nkx2.1 labeled cells in striatal and ventral pallial areas. Scale bars = 500 μm (A,B,D,K–M) and 200 μm (C,E–G,H–J,N–P). See list for abbreviations.