Fig. 1

RT-qPCR cycle threshold (Ct) values of candidate reference genes in the different tissues. Ct distribution values of Rpl14, Rpl32, Rpl34, 18S, 28S, Act, Cyp-A, Ef1α, Gapdh and Rps4 from gills (A), digestive gland (B), gonads (C), mantle (D), foot (E) of M. galloprovincialis. The distribution is shown by vertical box plot as medians (lines), interquartile range (boxes) and ranges (whiskers)