共查询到20条相似文献,搜索用时 0 毫秒
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ALDERSON T 《Nature》1958,182(4634):508-510
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Enzyme flexibility in Drosophila melanogaster 总被引:17,自引:0,他引:17
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DNA methylation in Drosophila melanogaster 总被引:11,自引:0,他引:11
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Nuclear transplantation in Drosophila melanogaster 总被引:5,自引:0,他引:5
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The ability of insects to learn and navigate to specific locations in the environment has fascinated naturalists for decades. The impressive navigational abilities of ants, bees, wasps and other insects demonstrate that insects are capable of visual place learning, but little is known about the underlying neural circuits that mediate these behaviours. Drosophila melanogaster (common fruit fly) is a powerful model organism for dissecting the neural circuitry underlying complex behaviours, from sensory perception to learning and memory. Drosophila can identify and remember visual features such as size, colour and contour orientation. However, the extent to which they use vision to recall specific locations remains unclear. Here we describe a visual place learning platform and demonstrate that Drosophila are capable of forming and retaining visual place memories to guide selective navigation. By targeted genetic silencing of small subsets of cells in the Drosophila brain, we show that neurons in the ellipsoid body, but not in the mushroom bodies, are necessary for visual place learning. Together, these studies reveal distinct neuroanatomical substrates for spatial versus non-spatial learning, and establish Drosophila as a powerful model for the study of spatial memories. 相似文献
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Associative learning of Drosophila melanogaster 总被引:2,自引:0,他引:2
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Antigens of developing Drosophila melanogaster 总被引:1,自引:0,他引:1
D B Roberts 《Nature》1971,233(5319):394-397
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Cryopreservation of Drosophila melanogaster embryos 总被引:3,自引:0,他引:3
P L Steponkus S P Myers D V Lynch L Gardner V Bronshteyn S P Leibo W F Rall R E Pitt T T Lin R J MacIntyre 《Nature》1990,345(6271):170-172
There is an urgent need to preserve the ever-increasing number (greater than 30,000) of different genetic strains of D. melanogaster that are maintained in national and international stock centres and in the laboratories of individual investigators. In all cases, the stocks are maintained as adult populations and require transfer to fresh medium every two to four weeks. This is not only costly in terms of materials, labour and space, but unique strains are vulnerable to accidental loss, contamination, and changes in genotype that can occur during continuous culture through mutation, genetic drift or selection. Although cryopreservation of Drosophila germ-plasm would be an enormous advantage, many attempts using conventional procedures have been unsuccessful. D. melanogaster embryos are refractory to conventional cryopreservation procedures because of the contravening conditions required to minimize mortality resulting from both intracellular ice formation and chilling injury at subzero temperatures. To overcome these obstacles, we have developed a vitrification procedure that precludes intracellular ice formation so that the embryos can be cooled and warmed at ultra-rapid rates to minimize chilling injury, and have recovered viable embryos following storage in liquid nitrogen. In a series of 53 experiments, a total of 3,711 larvae emerged from 17,280 eggs that were cooled in liquid nitrogen (18.4 +/- 8.8%). Further, using a subset from this population, approximately 3% of the surviving larvae (24/800) developed into adults. These adults were fertile and produced an F1 generation. 相似文献
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Frequencies of amylase variants in Drosophila melanogaster 总被引:9,自引:0,他引:9
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ALDERSON T 《Nature》1957,179(4567):974-975
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The developmental transcriptome of Drosophila melanogaster 总被引:2,自引:0,他引:2
Graveley BR Brooks AN Carlson JW Duff MO Landolin JM Yang L Artieri CG van Baren MJ Boley N Booth BW Brown JB Cherbas L Davis CA Dobin A Li R Lin W Malone JH Mattiuzzo NR Miller D Sturgill D Tuch BB Zaleski C Zhang D Blanchette M Dudoit S Eads B Green RE Hammonds A Jiang L Kapranov P Langton L Perrimon N Sandler JE Wan KH Willingham A Zhang Y Zou Y Andrews J Bickel PJ Brenner SE Brent MR Cherbas P Gingeras TR Hoskins RA Kaufman TC Oliver B Celniker SE 《Nature》2011,471(7339):473-479
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Mackay TF Richards S Stone EA Barbadilla A Ayroles JF Zhu D Casillas S Han Y Magwire MM Cridland JM Richardson MF Anholt RR Barrón M Bess C Blankenburg KP Carbone MA Castellano D Chaboub L Duncan L Harris Z Javaid M Jayaseelan JC Jhangiani SN Jordan KW Lara F Lawrence F Lee SL Librado P Linheiro RS Lyman RF Mackey AJ Munidasa M Muzny DM Nazareth L Newsham I Perales L Pu LL Qu C Ràmia M Reid JG Rollmann SM Rozas J Saada N Turlapati L Worley KC Wu YQ Yamamoto A Zhu Y Bergman CM Thornton KR 《Nature》2012,482(7384):173-178
A major challenge of biology is understanding the relationship between molecular genetic variation and variation in quantitative traits, including fitness. This relationship determines our ability to predict phenotypes from genotypes and to understand how evolutionary forces shape variation within and between species. Previous efforts to dissect the genotype-phenotype map were based on incomplete genotypic information. Here, we describe the Drosophila melanogaster Genetic Reference Panel (DGRP), a community resource for analysis of population genomics and quantitative traits. The DGRP consists of fully sequenced inbred lines derived from a natural population. Population genomic analyses reveal reduced polymorphism in centromeric autosomal regions and the X chromosome, evidence for positive and negative selection, and rapid evolution of the X chromosome. Many variants in novel genes, most at low frequency, are associated with quantitative traits and explain a large fraction of the phenotypic variance. The DGRP facilitates genotype-phenotype mapping using the power of Drosophila genetics. 相似文献
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Mutagenic effect of irradiated DNA in Drosophila melanogaster 总被引:1,自引:0,他引:1
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