Catshark Pectoral Fin (IMAGE)

Center for Genomic Regulation

Catshark Pectoral Fin

Caption

Figure 1: This is a catshark pectoral fin and a mouse forelimb. (a) Skeletal pattern. In a catshark fin, three basal bones are connected to the pectoral girdle, whereas in a mouse limb, a single basal bone is connected to the body trunk. (b) Expression patterns of genes involved in anterior-posterior patterning of fins/limbs. The balance of anterior field (Alx4, Pax9-positive region) and posterior field (Hand2-positive field) shifted in between a catshark pectoral fin and a mouse forelimb.

Credit

Mikiko Tanaka, Tokyo Institute of Technology

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