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W. Wb_down, age downregulated or upregulated genes in whole body (this study). head_down, head_up: age downregulated or upregulated genes in head. thorax_down, thorax_up: age downregulated or upregulated genes in thorax. triple_WB_down, triple_WB_up: downregulated or upregulated genes in whole body in the three aging experiments

. Head_enriched, thorax enriched: genes enriched either in head (clusters 1 to 4) or in thorax