The comparison of gene expression patterns in a number of insect and crustacean species has led to some insight into the evolution of arthropod patterning mechanisms. These studies have revealed the fundamental nature of the parasegment in a number of organisms, shown that segments can be generated sequentially at the molecular level, and suggested that pair-rule pre-patterning might not be shared by all insects.
The evolution of arthropod segmentation: insights from comparisons of gene expression patterns
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Nipam H. Patel; The evolution of arthropod segmentation: insights from comparisons of gene expression patterns. Development 1 January 1994; 1994 (Supplement): 201–207. doi: https://doi.org/10.1242/dev.1994.Supplement.201
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