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. 2018 Apr 4;18:9. doi: 10.1186/s12861-018-0168-2

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — A graphical representation of selected panel of epithelial genetic markers associated with oviduct cells. Three panels of epithelial genetic markers were proposed to provide a pattern of molecular signatures in the oviduct of hen and quail in 3 compartments: INF – infundibulum, DM – distal magnum, PM – proximal magnum. The first panel shown in the picture refers to stem-like markers: Nanog homebox (NANOG), octamer-binding protein 4 (OCT4/cPOUV) and sex determining region Y-box 9 (SOX9); and epithelial progenitor cells: cell surface glycoprotein CD44, leucine-rich repeat containing G protein-coupled receptor 5 (LGR5), and Musashi-1 (MSI-1). The second panel refers to epithelial cells: keratins KRT 5 and 14 and occludin (OCLN). The third panel refers to functional avian oviduct cells: estrogen receptor-1 (ESR1), ovalbumin (OVAL) and ovomucoid (OVM)