Imaging Drosophila gene activation and polymerase pausing in vivo

John T. Lis
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John T. Lis: Molecular Biology and Genetics, 416 Biotechnology Building, Cornell University, Ithaca, New York 14853, USA

Nature, 2007, vol. 450, issue 7167, 198-202

Abstract: Genomics on a phylogeny This issue includes a landmark collection of papers on the stalwart of the genetics lab, the Drosophila fruit fly. The centrepiece is the publication by the Drosophila 12 Genomes Consortium of the genomic sequence for ten Drosophila species. The paper compares the newly sequenced genomes (sechellia, simulans, yakuba, erecta, ananassae, persimilis, willistoni, mojavensis, virilis and grimshawi species), with the two previously known sequences for D. melanogaster and D. pseudoobscura. The resulting database of genetic variation will be invaluable for the study of the forces of evolutionary change. A second major collaboration has mined the dozen Drosophila genome sequences for conserved elements, and reports the relationship between conservation and function for many specific sequence motifs. A detailed regulatory network emerges, identifying protein-coding genes and exons, RNA genes, microRNAs and their targets. These papers are discussed in News and Views. Two further research papers use the new genomic data to study gene expression, first for genes with male-biased expression and those unique to each species and second, to track the evolution of gene dosage compensation on Drosophila sex chromosomes. Four new reviews focus on how the latest work on Drosophila is taking this genetically pliant lab model into exciting new fields. Pierre Leopold and Norbert Perrimon review advances in the study of endocrinology and homeostasis that are establishing Drosophila as a model for mammalian physiology. Drosophila has proved a powerful system in which to study the pathways controlling cell shape in growing tissue, as reported by Thomas Lecuit and Loïc Le Goff. Leslie Vosshall reviews the remarkable work linking neural circuits and behaviour and John Lis reviews work on Drosophila that has rewritten the textbook view of gene transcription. The cover shows anaesthetized individuals of all twelve Drosophila species.

Date: 2007
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DOI: 10.1038/nature06324

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