Fig. 1

Overview of the differential gene expression experiment comparing transcriptomic profiles of four different Loripes orbiculatus organs. a Anatomical illustration of L. orbiculatus. Four different organs from three individuals were sampled for RNA-Seq: the gills, mantle, foot, and visceral mass. b Principal components analyses plotted using the transformed raw counts (variance stabilising transformation) of each sample, with PC1 on the horizontal axis and PC2 on the vertical axis. The samples from different individuals cluster together by organ type. Colours indicate the different organs and shapes indicate different clam specimens. c Expression patterns of genes (rows) specifically expressed in each organ (column). Yellow indicates high levels of expression while blue low indicates low levels of expression. The heatmap was plotted from VSD transformed counts and scaled by row. More details on the differentially expressed genes are in Additional file 3