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Cellular, Molecular, and Genetic Mechanisms of Avian Beak Development and Evolution
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DOI：10.1146/annurev-genet-111523-101929.png)
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Abstract
En 中文
Diverse research programs employing complementary strategies have been uncovering cellular, molecular, and genetic mechanisms essential to avian beak development and evolution. In reviewing these discoveries, I offer an interdisciplinary perspective on bird beaks that spans their derivation from jaws of dinosaurian reptiles, their anatomical and ecological diversification across major taxonomic groups, their common embryonic origins, their intrinsic patterning processes, and their structural integration. I describe how descriptive and experimental approaches, including gene expression and cell lineage analyses, tissue recombinations, surgical transplants, gain- and lossand genome-wide association studies, have identified key constituent parts and putative genes regulating beak morphogenesis and evolution. I focus throughout on neural crest mesenchyme, which generates the beak skeleton and other components, and describe how these embryonic progenitor cells mediate species-specific pattern and link form and function as revealed by 20 years of research using chimeras between quail and duck embryos.
Keywords:
cranial neural crest
species-specific size and shape
craniofacial
quail-duck chimeras
quck
evolutionary-developmental biology
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8.6
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912
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