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PMID:10611687
Citation |
Davis, GK and Patel, NH (1999) The origin and evolution of segmentation. Trends Cell Biol. 9:M68-72 |
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Abstract |
Arthropods, annelids and chordates all possess segments. It remains unclear, however, whether the segments of these animals evolved independently or instead were derived from a common ancestor. Considering this question involves examining not only the similarities and differences in the process of segmentation between these phyla, but also how this process varies within phyla, where the homology of segments is generally accepted. This article reviews what is known about the segmentation process and considers various proposals to explain its evolution. |
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Keywords |
Animals; Biological Evolution; Body Patterning; Cleavage Stage, Ovum; Phylogeny |
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Significance
Annotations
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See also
References
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