Ensembl X.tropicalis

 

Example Data Points

This release of X.tropicalis data is assembled into scaffolds, so there are no chromosomes available to browse. Use the BLAST and SSAHA buttons in the menu bar, left, to locate data.

A few example data points:

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About the X. tropicalis genome

Assembly

XenopusThe Xenopus tropicalis genome assembly version 4.1 [August 2005] is the fourth of a series of preliminary assembly releases by the JGI that are planned as part of the ongoing X. tropicalis genome project. This Ensembl website presents the sequence data provided by the JGI.

The reads were assembled using JAZZ, the JGI assembler, producing a genome of approximately 1.5 Gb. The assembly contains 19,501 scaffolds with an average coverage of 7.65X. Roughly half of the genome is contained in 272 scaffolds, all at least 1.56 Mb in length. In this update to the 4.0 assembly, some scaffolds showing homology to a known prokaryotic contaminant as well as non-cellular or vector contamination have been removed - see the JGI website (above) for more information.

Annotation

The gene set for Xenopus tropicalis was built using a modified version of the standard Ensembl pipeline. Both Xenopus tropicalis and Xenopus laevis proteins were used to predict gene structures. cDNAs from both species were used to add UTRs. Gene predictions were also based on Xenopus tropicalis cDNAs manually annotated in the July 2005 jamboree. Finally, gene predictions based on UniProt proteins were used to fill gaps in the annotation.

What's New in Ensembl 38

Xenopus tropicalis News

  • Xenopus assembly updated to 4.1
    Ensembl Xenopus tropicalis has been updated to the JGI 4.1 assembly.
    Read more...
  • Compara whole genome alignments

    The following updates have been made to ensembl_compara.
    Read more...

General News

  • New navigation options in ContigView

    ContigView navigation has been enhanced with new popup menus and navigation features.
    Read more...

  • New xrefs, including unmapped objects

    The following xrefs have been added/updated.
    Read more...

  • Change of database name - ESTs
    In the last couple of releases, features other than ESTs have been included in the [species]_est_nn_xx database.
    Read more...

More news...

Statistics

Assembly: JGI 4.1, Aug 2005
Genebuild: Ensembl, Jan 2006
Database version: 38.41
Known genes: 13,197
Novel genes: 5,276
RNA genes: 972
Genscan gene predictions: 66,517
Gene exons: 194,552
Gene transcripts: 28,324
Base Pairs: 1,510,886,836
Golden Path Length: 1,510,886,836
Most common InterPro domains: Top 40 Top 500

 

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Ensembl v38 - Apr 2006
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