evolution of development
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Evolution of Development. Chapter 25. The Evolutionary Paradox. Diverse morphologies are regulated by highly conserved genes. Example, the Hox genes. Developmental changes can lead to evolutionary changes. Heterochrony. Homeosis. Changes in transcription factors. - PowerPoint PPT PresentationTRANSCRIPT
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Evolution of Development
Chapter 25
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The Evolutionary Paradox
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Diverse morphologies are regulated by highly conserved genes.
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Example, the Hox genes
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Developmental changes can lead to evolutionary changes
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Heterochrony
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Homeosis
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Changes in transcription factors
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Changes in signaling pathways
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One or Two Gene Mutations, New Form
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The Brassica Example
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Same Gene, New Function
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Pitx1 and the Sticklebacks
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Different Genes, Convergent Function
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Homeoplastic structures
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Gene Duplication and Divergence
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Morning glories and pigment
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Diversity of the Eyes