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 39

Xenopus tropicalis News

  • Updated miRNA sets
    Micro-RNA data sets have been updated in a wide range of Ensembl species, including Chicken, Dog, Cow, Chimp, Macaque, Rat, Tetraodon, Fugu, Xenopus, and Ciona intestinalis.

General News

  • Bug fixes
    In order to fix some problems with the store() method in Gene and Transcript, DBEntryAdaptor and AttributeAdaptor now require a gene/transcript/translation dbID rather than object as one of their arguments (please see POD for details).
  • Multiple versions of genes
    The schema and API have been changed to allow multiple versions of genes, transcripts and exons, for better integration with Otter (the Ensembl-based database schema used as a backend for Havana).
    Read more...
  • New MLAGAN groups
    A new 3-way MLAGAN Primate group has been created, containing Human, Chimp and macaque.
    Read more...
  • Compara - whole genome alignments, syntenies and families

    Whome Genome Alignments.
    Read more...

More news...

Statistics

Assembly: JGI 4.1, Aug 2005
Genebuild: Ensembl, Jan 2006
Database version: 39.41a
Known genes: 6,054
Projected genes: 7,345
Novel genes: 5,074
RNA genes: 1,096
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 v39 - Jun 2006
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