PubMed Nucleotide Protein Genome Structure Taxonomy

Drosophila melanogaster genome data and search tips Revised December 3, 2002

The Map Viewer help document describes how to use the Map Viewer software. This page describes the data available for Drosophila melanogaster (fruit fly), and the search tips specific to that organism. You can also return to the Drosophila melanogaster genome view search page. The Map Viewer home page allows you to search the genome data of any organism represented in MapViewer.

  1. Scope of Data
  2. Available Maps
  3. Searchable Terms

Scope of Data back to top

The Drosophila melanogaster genomic sequence data represented in the Entrez Map Viewer were generated by the collaboration between Celera and the Berkeley Drosophila Genome Project (BDGP), as described in the March 24, 2000 issue of Science.

Some important notes about the status of the sequence release represented in the Entrez Map Viewer are also available. They include a description of the "scaffolds" of genomic sequence into which the data were assembled, and the FASTA files that can be downloaded from the NCBI FTP site.

A cytogenetic map is also presented in the Entrez Map Viewer, and can be viewed beside the sequence map, if desired. (See the Display Settings section of the Entrez Map Viewer help document for more information.)

Available Maps back to top

The available maps for Drosophila include:

Map Name Description
Cytogenetic Cytogenetic map (banding pattern).
Genes_cyto Cytogenetic map, with annotated genes.
Genes_seq Sequence map, with annotated genes.
Scaffold map Sequence scaffolds.  more...
GenBank GenBank sequence records (up to 350 Kb per record).   more...

Notes:

When the Scaffold map is used as the Master Map, the individual accessions from which the scaffold was built might be labeled with the following orientation abbreviations:
  • F (forward)
  • R (reverse)
  • N (mapped but not oriented)
  • ? (neither mapped nor oriented)

SearchableTerms back to top

Text Terms back to top

The Drosophila data are searchable with the following types of terms:

  • gene symbol
  • gene name
  • other types of IDs, e.g.,
    • CT number - Celera transcript identification number
    • CG number - Celera gene identification number
    • FBgn - FlyBase gene object
    • FBan - Flybase annotation object

Map Positions back to top

As noted in the Search By Position section of the Entrez Map Viewer general help document, there are three main ways to search by map position from the Map View of a chromosome:
  1. enter a range of interest in the Region text boxes in side bar
  2. click on the region of interest in the chromosome thumbnail graphic in the sidebar
  3. click on a region of interest in the enlarged Map View of the chromosome

For Drosophila, the following types of map positions can be entered in the Region text boxes noted in option 1:
  • base pairs
  • cytogenetic bands
  • gene symbols

Questions or Comments?
Write to the NCBI Service Desk