Fig. 3.—

The expression of bHLH genes among nine different tissues in C. gigas. Hierarchical clustering analysis of C. gigas transcriptome data from adult organs for all bHLH genes. Distances were measured for rows (genes) and clustered using pairwise complete-linkage. Normalization and median centering was conducted for each row: red blocks represent a high level of expression whereas blue blocks represent a low level, with white the median. For absolute read counts please refer to the supplementary table S10, Supplementary Material online. Organs are abbreviated as: Mo, the outer edge of mantle; Mi, the inner pallial of mantle; Fgo, female gonad; Mgo, male gonad; Amu, adductor muscle; Hem, hemocyte; Dgl, digestive gland; Gil, gills; and Lpa, labial palp.