Drosophila headlines.
Recent genetic and molecular data from Drosophila support the long-standing observations of morphology in suggesting that segmentation of the insect embryo proceeds in two phases. Organization of the cephalic segments uses a mechanism distinct from the familiar bierarchical cascade of segmentation genes that subdivides the trunk of the embryo.
Cohen
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Howard Hughes Medical Institute, Department of Cell Biology, Baylor College of Medicine, Houston, TX 77030.
Jürgens
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D000818:Animals; D004331:Drosophila melanogaster / Q000196:embryology* / Q000235:genetics; D004625:Embryo, Nonmammalian / Q000033:anatomy & histology; D005314:Embryonic and Fetal Development; D005786:Gene Expression Regulation; D005801:Genes, Homeobox; D005809:Genes, Regulator; D006257:Head / Q000196:embryology*; D009024:Morphogenesis; D009994:Osmolar Concentration; D010641:Phenotype; D014158:Transcription, Genetic