Tissue expression was estimated using kallisto v 0.42.4 (Bray et al., 2015). All genes with total transcripts per million (TPM) count below 1 or where more than two tissue types had a TPM of 0 were removed. To make log‐normalization possible, 0.25 was added to the remaining TPM values. Expression was log‐normalized and clustered into 12 clusters using Mfuzz v. 2.30.0 (Futschik and Carlisle, 2005) (m = 1.25).