A Survey of 6,300 Genomic Fragments for cis-Regulatory Activity in the Imaginal Discs of Drosophila melanogaster

Citations Over TimeTop 10% of 2012 papers

Abstract

Over 6,000 fragments from the genome of Drosophila melanogaster were analyzed for their ability to drive expression of GAL4 reporter genes in the third-instar larval imaginal discs. About 1,200 reporter genes drove expression in the eye, antenna, leg, wing, haltere, or genital imaginal discs. The patterns ranged from large regions to individual cells. About 75% of the active fragments drove expression in multiple discs; 20% were expressed in ventral, but not dorsal, discs (legs, genital, and antenna), whereas ∼23% were expressed in dorsal but not ventral discs (wing, haltere, and eye). Several patterns, for example, within the leg chordotonal organ, appeared a surprisingly large number of times. Unbiased searches for DNA sequence motifs suggest candidate transcription factors that may regulate enhancers with shared activities. Together, these expression patterns provide a valuable resource to the community and offer a broad overview of how transcriptional regulatory information is distributed in the Drosophila genome.

Related Papers

• → A P element of Scaptomyza pallida is active in Drosophila melanogaster.(1991)65 cited
• → Evolution of the LINE-like I element in the Drosophila melanogaster species subgroup(1995)11 cited
• → Consequences of homo- and heterospecific rapid remating on the fitness of Drosophila melanogaster females(1995)2 cited
• → Regulative interactions between cells of wing discs from different dipteran species(1984)
• Drosophila melanogaster 에 미치는 DDVP 의 생리변이적 영향에 관한 연구(1994)