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Science 24 January 1986:
Vol. 231. no. 4736, pp. 400 - 402
DOI: 10.1126/science.231.4736.400
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Articles

Sevenless: A Cell-Specific Homeotic Mutation of the Drosophila Eye

ANDREW TOMLINSON 1 and DONALD F. READY 1

1 Department of Biology, Princeton University, Princeton, NJ 08540.

Each ommatidium in the compound eye of the Drosophila mutant sevenless lacks photoreceptor number seven (R7) from the normal ommatidial complement of eight photoreceptors. A comparison of mutant and normal development reveals that this deficit is caused by the cell-specific transformation of the cell normally fated to produce R7 into a lens-secreting accessory cell, a cone cell.

Submitted on August 12, 1985
Accepted on November 7, 1985


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