Figure 4.

(A) Eigenvectors and spectra of the loss tangent $\text{tan}\delta \left(\overline{\omega }\right)$ for chromosome 6 in mouse ES cells (left), NPCs (middle), and CN cells (right) at a 250-kb resolution. Along the genomic coordinate and the logarithmic frequency ${\text{log}}_{10}\overline{\omega }$, a spectrum of ${\text{log}}_{10}\text{tan}\delta \left(\overline{\omega }\right)$ is depicted as a heat map. The white arrows for CNs indicate definite “island” regions around $\overline{\omega }$ = 10⁻³ with negative eigenvectors. (B) The scatter plots between the logarithmic loss tangent and the eigenvalue for $\overline{\omega }$ = 10⁻² and $\overline{\omega }$ = 10⁻³ are shown. For CNs, the black arrow indicates the appearance of the “islands” in (A). To see this figure in color, go online.