Methylation studies in horses

An Infinium microarray platform (GPL28271, HorvathMammalMethylChip40) was used to generate DNA methylation data from many tissues from horses We generated DNA methylation data from n=333 horse tissue samples representing tissues. Blood samples were collected via venipuncture into EDTA tubes from across 24 different horse breeds (buffy coat). The other tissues were collected at necropsy. The tissue atlas was generated from two Thoroughbred mares as part of the FAANG initiative 37, with the following tissues profiled: adipose (gluteal), adrenal cortex, blood (PBMCs; only n=1 mare), cartilage (only n=1 mare), cecum, cerebellum (2 samples each from lateral hemisphere and vermis), frontal cortex, duodenum, fibroblast, heart (2 samples each from the right atrium, left atrium, right ventricle, left ventricle), hypothalamus, ileum, jejunum, keratinocyte, kidney (kidney cortex and medulla), lamina, larynx (i.e. cricoarytenoideus dorsalis muscle), liver, lung, mammary gland, mitral valve of the heart, skeletal muscle (gluteal muscle and longissimus muscle), occipital cortex, ovary, parietal cortex, pituitary, sacrocaudalis dorsalis muscle, skin, spinal cord (C1 and T8), spleen, suspensory ligament, temporal cortex, tendon (deep digital flexor tendon and superficial digital flexor tendon), uterus. N=333 tissue samples from horses. Genome annotations of the array can be downloaded from https://github.com/shorvath/MammalianMethylationConsortium