Fig. 2
From: Diet induced the change of mtDNA copy number and metabolism in Angus cattle
Heat map showing relative expression of mtDNA encoded genes in the four tissues of grass-fed and grain-fed Angus cattle. The average fragments per kilobase of transcript per million (FPKM) value of the two replicates was used as the gene expression, and the heat map was plotted based on log2(FPKM+ 1). The color legend represents the appropriate level, with red indicating high expression level and the blue indicating low expression level