(A) Correlation between poly(A) tail length and TE for MEGs.
(B) Correlation between change in poly(A) tail length and change in TE for MEGs.
(A and B) Genes were filtered by ≥1 FPKM in the RNA-seq dataset used to calculate TE.62 n, number of reads; R, Pearson correlation coefficient; TE, translational efficiency.
(C) Violin plots showing global distributions of gene-level mean poly(A) tail lengths at each stage for MEGs (colored) compared with all genes (gray). Means/medians of distributions are provided. Only genes with ≥10 polyadenylated reads in both biological replicates combined were included. Pairwise two-sided Wilcoxon tests are shown (ns, p > 0.05; *p ≤ 0.05; ***p ≤ 0.001; ****p ≤ 0.0001).
(D) Proportion of MEGs or all genes with significantly (adjusted p < 0.05) lengthened (red, left) or shortened (blue, right) tail lengths at each stage transition. Only genes with R10 polyadenylated reads in both stages represented were included. Pairwise one-sided Fisher’s exact tests are shown (ns, p > 0.05; *p ≤ 0.05; ***p ≤ 0.001; ****p ≤ 0.0001).
(E) Poly(A) tail lengths (top) and translational efficiencies (bottom) of select MEGs across the OET. Each boxplot represents ≥20 polyadenylated reads. Pairwise two-sided Wilcoxon tests are shown (ns, p > 0.05; *p ≤ 0.05; **p ≤ 0.01; ****p ≤ 0.0001).