Transcript Developmental Biology, 9e

BIOL 370 – Developmental Biology
Topic #22
Developmental Mechanisms of Evolutionary
Change
Lange
Figure 19.9 Correlation between beak shape and the expression of Bmp4 in Darwin’s finches
Figure 19.10 Correlation between beak length and the amount of calmodulin (CaM) gene
expression in Darwin’s finches
Figure 19.11 Role of BMP4 and calmodulin (CaM) in beak evolution in Darwin’s finches
Allometry is the study of the relationship of body size to shape,
anatomy , physiology and finally behaviour, first outlined by
Otto Snell in 1892, D'Arcy Thompson in 1917 and Julian
Huxley in 1932.
Figure 19.12 Allometric growth in the whale head
Figure 19.19 Extra cervical ribs are associated with childhood cancers
Figure 19.23 Mice with mutations in the leptin genes are genetically obese
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