Figure 5 | Scientific Reports

Figure 5

From: Developmental transcriptomes of the sea star, Patiria miniata, illuminate how gene expression changes with evolutionary distance

Figure 5

The correlation matrix diagonality, MD, reflects how the dominance between cellular and developmental constraints changes with evolutionary distance. Illustration of typical interspecies correlation matrices of developmental control genes and housekeeping genes between closely related and further diverged species (upper and lower panels, respectively). With increasing evolutionary distance, that is, between the sea urchin and the sea star, the average correlation and the diagonality decrease for all gene sets but the diagonality of developmental control genes is least affected and they still maintain the hourglass pattern (left panels). On the other hand, the interspecies correlation matrices of housekeeping genes are strong and non-diagonal even between the two sea urchins and remain non-diagonal between the sea urchin and the sea star (right panels).

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