Expression of the src and abl cellular oncogenes during development of Drosophila melanogaster.

AUTOR(ES)

Lev, Z

RESUMO

Transcription of the Drosophila homologs of the abl and src cellular oncogenes, termed Dash and Dsrc , respectively, was studied. Despite the fact that Dash and Dsrc share sequence homology, they have distinct patterns of transcription during development. The Dash transcript, 6.2 kilobases long, is found in maternal RNA stored in unfertilized eggs and in embryos up to 4 h after egg laying. In contrast, Dsrc transcripts are 3.2, 4.8, and 5.2 kilobases long. They are detected in eggs and embryos and to a lesser extent in larvae and adult flies. The relative amount of each of the three Dsrc transcripts changes during the different stages of development.

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