A novel, tissue-specific, Drosophila homeobox gene.

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Abstract
The homeobox gene family of Drosophila appears to control a variety of position‐specific patterning decisions during embryonic and imaginal development. Most of these patterning decisions determine groups of cells on the anterior‐posterior axis of the Drosophila germ band. We have isolated a novel homeobox gene from Drosophila, designated H2.0. H2.0 has the most diverged homeobox so far characterized in metazoa, and, in contrast to all previously isolated homeobox genes, H2.0 exhibits a tissue‐specific pattern of expression. The cells that accumulate transcripts for this novel gene correspond to the visceral musculature and its anlagen.