Fig. 2

Hierarchical clustering analysis of gene expression based on RPKM data. S1, S2 and S3 are stages 1, 2 and 3, respectively for Sollux, and G1, G2 and G3 are stages 1, 2 and 3, respectively, for Gaoyou. The color key represents RPKM (reads per kilobase per million mapped reads) normalized log₂ transformed counts. Red represents high expression and green represents low expression. Each row represents a gene