Fig. 4: Presence of ♂- and ♀-type mtDNAs in A. islandica somatic tissues.

The ratio of ♀ (x-axis) and ♂ (y-axis) cytochrome b forms (in ng [nanograms] of cytochrome b DNAs divided by the geometric mean of 28 S and 18 S DNAs in ng) was determined by a qPCR in the foot (A), gills (B) and mantle (C) for 37 individuals, male (open triangle) and female (filled circle).