Fig. 5From: Developmental characteristics of pearl oyster Pinctada fucata martensii: insight into key molecular events related to shell formation, settlement and metamorphosisDifferentially expressed elements of neuroendocrine pathways involved in shell formation, settlement and metamorphosis. The expression pattern of thyroid hormone receptor (ThR), estrogen receptor (ER) and vitamin D3 receptor (VDR) at different development stages were shown in a. The expression pattern of ecdysone receptor (EcR) and other elements in ecdysone signal pathway at different development stages were shown in b. Neurotransmitter receptors including adrenergic receptor (ADR), dopamine receptor (DRD), histamine receptor (HRH) and 5-HT receptor (HTR), and neuropeptide Y/S/FF receptors were shown in c. The y-axis is the normalized RPKM valueBack to article page