Figure 7 .

FISH-images of ssa08/29 with arrows pointing at BAC probes. Metaphase spreads of a North American Atlantic salmon from Aqua Bounty Canada and a European Atlantic salmon. Red label: BAC S0214J02 on ssa8, Green label: BAC S0016D16 on ssa29 1: European Atlantic salmon: As predicted the signals go to individual chromosomes in the European sample. Note the intense light blue stain of heterochromatin on ssa08, which is where the rRNA genes are located. 2: North American Atlantic salmon: The signals co-locate to separate chromosomes (fusion of ssa08 and ssa29) and also to the two unfused acrocentric chromosomes (ssa08 and ssa29), indicating that this North American Atlantic salmon is heterozygous for the fusion.