Analysis of Variance|Animals|Base Sequence|Cluster Analysis|Conserved Sequence|Gene Expression Profiling|HSP90 Heat-Shock Proteins|Long Interspersed Nucleotide Elements|Models, Genetic|Models, Statistical|Molecular Sequence Data|Mytilus|Neoplasms|Organ Specificity|Principal Component Analysis|Promoter Regions, Genetic|Sequence Alignment|Stress, Physiological|Tumor Suppressor Protein p53