Interactions and developmental effects of mutations in the Broad-Complex of Drosophila melanogaster.

I. Kiss, A. H. Beaton, J. Tardiff, D. Fristrom, J. W. Fristrom

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Abstract

The 2B5 region on the X chromosome of Drosophila melanogaster forms an early ecdysone puff at the end of the third larval instar. The region contains a complex genetic locus, the Broad-Complex (BR-C) composed of four groups of fully complementing (br, rbp, l(1)2Bc, and l(1)2Bd) alleles, and classes of noncomplementing (npr 1) and partially noncomplementing l(1)2Bab alleles. BR-C mutants prevent metamorphosis, including the morphogenesis of imaginal discs. Results are presented that indicate that the BR-C contains two major functional domains. One, the br domain is primarily, if not exclusively, involved in the elongation and eversion of appendages by imaginal discs. The second, the l(1)2Bc domain, is primarily involved in the fusion of discs to form a continuous adult epidermis. Nonetheless, the two domains may encode products with related functions because in some situations mutants in both domains appear to affect similar developmental processes.

Original languageEnglish
Pages (from-to)247-259
Number of pages13
JournalGenetics
Volume118
Issue number2
Publication statusPublished - Feb 1988

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ASJC Scopus subject areas

  • Genetics

Cite this

Kiss, I., Beaton, A. H., Tardiff, J., Fristrom, D., & Fristrom, J. W. (1988). Interactions and developmental effects of mutations in the Broad-Complex of Drosophila melanogaster. Genetics, 118(2), 247-259.