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. 2018 Jul 10;233(4):468–477. doi: 10.1111/joa.12846

Figure 3.

Figure 3

Differential gene expression. Steady‐state mRNA expression of aggrecan core protein (ACAN) (a), type II collagen (COL2) (b), growth and differentiation factor 5 (GDF5) (c) in epiphyseal articular cartilage, metaphyseal cartilage and interzone tissue samples from the femorotibial joints of aquatic and terrestrial sibling axolotls. Samples include total RNA from EAC, epiphyseal‐articular cartilage; MC, metaphyseal cartilage; and IZ, interzone from A, aquatic; and T, terrestrial axolotl salamanders. Bar graphs represent the relative expression levels relative to an age‐matched adult axolotl RNA sample.