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Figure 3 | EvoDevo

Figure 3

From: Revisiting de Beer’s textbook example of heterochrony and jaw elongation in fish: calmodulin expression reflects heterochronic growth, and underlies morphological innovation in the jaws of belonoid fishes

Figure 3

Contribution of the toothless extensions to heterochronic jaw growth in representatives of the Belonoidei. Alcian blue/alizarin red staining indicates that needlefish (B. belone) and halfbeak (D. pusilla) have toothless extensions of the lower jaw that are not present in medaka (O. latipes). (A, C, E), lateral orientation, (B, D, F) ventral orientation; age matched representatives, including (A, B) 28 dph medaka, O. latipes, (C, D) 7 dpb halfbeak, D. pusilla, (E, F) 6 dph needlefish, B. belone. Abbreviations: bl = body length, e = eye, lj = lower jaw, ljb = lower jaw basis, te = toothless extensions, uj = upper jaw.

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