Fig. 1

Principal component analysis (PCA) of transcriptome profiles in Orestias ascotanensis. (a) PCA of all samples, colored by tissue type (gills: red, muscle: blue, skin: green). (b) Seasonal PCA for gills (summer: light red, winter: dark red). (c) Seasonal PCA for muscle (summer: light blue, winter: dark blue). (d) Seasonal PCA for skin, showing seasonal overlap (summer: light green, winter: dark green).