RT Journal Article T1 Distinct Expression Profiles of Three Melatonin Receptors during Early Development and Metamorphosis in the Flatfish Solea senegalensis A1 Lan-Chow-Wing, Olivier A1 Confente, Francesca A1 Herrera-Pérez, Patricia A1 Isorna Alonso, Esther A1 Chereguini, Olvido A1 Rendón, Maria A1 Falcón, Jack A1 Muñoz-Cueto, José AB Melatonin actions are mediated through G protein-coupled transmembrane receptors. Recently, mt1, mt2, and mel1c melatonin receptors were cloned in the Senegalese sole. Here, their day-night and developmental expressions were analyzed by quantitative PCR. These results revealed distinct expression patterns of each receptor through development. mel1c transcripts were more abundant in unfertilized ovulated oocytes and declined during embryonic development. mt1 and mt2 expression was higher at the earliest stages (2–6 days post-fertilization), decreasing before (mt2) or during (mt1) metamorphosis. Only mt1 and mel1c expression exhibited day-night variations, with higher nocturnal mRNA levels. These results suggest different roles and transcriptional regulation of these melatonin receptors during flatfish development and metamorphosis. PB MDPI SN 1422-0067 YR 2014 FD 2014-11-13 LK https://hdl.handle.net/20.500.14352/34319 UL https://hdl.handle.net/20.500.14352/34319 LA eng NO Ministerio de Economía y Competitividad (MINECO) DS Docta Complutense RD 9 abr 2025