Conservation of a large protein domain in the segmentation gene paired and in functionally related genes of Drosophila
Extending our search for homologous domains of the Drosophila paired gene, two closely linked genes at the gooseberry locus have been isolated. Both genes are expressed with a single segment periodicity but with different spatial and temporal expression patterns. While the transcripts of one gene appear earlier and are equally distributed between ectoderm and mesoderm, those of the second gene acc
