RNA for 499 samples was extracted using the MagMAX for Stabilized Blood Tubes RNA Isolation Kits (Thermo Fisher), and RNA from 48 samples was extracted using the PAXgene Blood RNA Kit IVD (Qiagen) following the standard protocols for each procedure. RQN was quantified using AATI Fragment Analyzer. RNA sequencing libraries were prepared using 50 ng of total RNA and following a recently developed 3′-biased protocol, TM3′SEq. (74 (link)). Libraries were amplified with 16 PCR cycles. All other procedures followed the published protocol or manufacturer recommendations. Libraries were combined in equimolar quantities and sequenced on an Illumina NovaSeq S2 flowcell (R1 was 25 bp and R2 was 80 bp to capture the complementary DNA [cDNA] transcript) to an average read depth of 3.5 million reads per sample. We mapped cDNA reads to the M. mulatta reference assembly Mmul_10 using kallisto (75 (link)) (average mapping rate = 71.1%).