The evolution of arthropod segmentation: insights from comparisons of gene expression patterns.
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.
Patel
N H
NH
Department of Embryology, Carnegie Institution of Washington, Baltimore, Maryland 21210, USA.
D000818:Animals; D001181:Arthropods / Q000196:embryology* / Q000235:genetics; D005075:Biological Evolution; D003445:Crustacea / Q000196:embryology / Q000235:genetics; D015870:Gene Expression; D017344:Genes, Insect; D007313:Insecta / Q000196:embryology / Q000235:genetics; D009024:Morphogenesis / Q000235:genetics