Heatmap from Scientific Research

Heatmap of scaled gene expression showing the top conserved transcriptional signatures of ancestral photoreceptor types. Because genes can have multiple homologs, each column represents a unique combination of homologous genes across species. Gray values indicate that no gene homolog was found for that species. Some opsin genes are highlighted; for all gene names, seeFigure S2. See alsoFigures S2andS3.

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