Figure 4. Kr-h1 binds to caste-biased genes.

(A) Proportion of Kr-h1 peaks (fold over input > 3) within genomic features. For global peak distribution, data from worker and gamergate brains were combined.
(B) Overlap of genes bound by Kr-h1 and differentially expressed between workers and gamergates (Fig. 1A). P-value is from a Fisher’s exact test.
(C) Tracks for Kr-h1 occupancy in mature worker and gamergate brains. P-values are from DiffBind. To the right are expression levels (DESeq2-normalized counts). Bars represent the mean + SEM. P-values are from Student’s t tests. ChIP-seq data are from 5 biological replicates per caste. RPM, reads per million.
(D) Top: heatmap for Kr-h1 ChIP-seq at differentially bound regions ± 1 kb. Bottom: differential expression in worker vs. gamergate brains for genes differentially bound by Kr-h1. P-values are from Mann-Whitney U tests.
(E) Same as (D) but showing differential expression in response to JH3 vs. 20E in vitro (top) or in vivo (bottom).