Fig. 6
TD analysis of gene expression profiles. TD-based unsupervised FE was applied to gene expression and methylation profiles of P. canadensis (a, b, c)and D. quadriceps (d, e, f). a: The first sample singular value vector for methylation profiles \(u_{k_{3}\ell }\) (with k3=1), (b) A boxplot of the third sample singular value vectors for gene expression profiles, \(u_{k_{2}j}\) (with k2=3). c The ninth and 10th gene singular value vector, \(u_{k_{1}i}\) (with 9≤k1≤10). Red areas in (c) represent 133 selected genes. d: The first sample singular value vector for methylation profiles, \(u_{k_{3}\ell }\) (at k3=1). e A boxplot of the fifth sample singular value vectors for gene expression profiles, \(u_{k_{2}j}\) (at k2=5). f The 11th gene singular value vector, \(u_{k_{1}i}\) (at k1=11). Red areas in (f) represent 128 selected genes