The leptin system and its expression at different nutritional and pregnant stages in lined seahorse (Hippocampus erectus)
Leptin is an essential hormone for the regulation of energy metabolism and food intake in vertebrate animals.To better understand the physiological roles of leptin in nutrient regulation in paternal ovoviviparous fish (family Syngnathidae), the present study cloned the full-length of leptin-a and leptin receptor (lepr) genes in lined seahorse (Hipp