Ensembl Cow

 

Explore the Bos taurus genome

Karyotype

Click on a chromosome for a closer view

Cow karyotype selector chromosome 1 chromosome 16 chromosome 2 chromosome 17 chromosome 3 chromosome 18 chromosome 4 chromosome 19 chromosome 5 chromosome 20 chromosome 6 chromosome 21 chromosome 7 chromosome 22 chromosome 8 chromosome 23 chromosome 9 chromosome 24 chromosome 10 chromosome 25 chromosome 11 chromosome 26 chromosome 12 chromosome 27 chromosome 13 chromosome 28 chromosome 14 chromosome 29 chromosome 15 chromosome 30

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About the Bos taurus genome

Assembly

Cow Btau_2.0 is a preliminary assembly of the cow, Bos taurus, Hereford breed, using whole genome shotgun (WGS) reads from small insert clones and BAC end sequences. The project coordination and genome sequencing and assembly is provided by the Human Genome Sequencing Center at Baylor College of Medicine.

The Btau_2.0 release was produced by assembling whole genome shotgun reads with the Atlas genome assembly system. Several WGS libraries, with inserts of 2-4 kb, and 4-6 kb, were used to produce the data. About 23 million reads were assembled, representing about 17.7 Gb of sequence and about 6.2x coverage of the (clonable) bovine genome.

The N50 size is the length such that 50% of the assembled genome lies in blocks of the N50 size or longer. The N50 size of the contigs is 18.9 kb and the N50 of the scaffolds is 434.7 kb. The total length of all contigs is 2.62 Gb. When the gaps between contigs in scaffolds are included, the total span of the assembly is 3.1 Gb.

Annotation

The improved, 6x assembly of cow has made it possible to apply a classical Ensembl gene-build to determine the gene-set

What's New in Ensembl 40

Bos taurus News

There is no Bos taurus-specific news this release.

General News

  • New orthologue display - GeneTreeView
    A new Ensembl view page, GeneTreeView, displays gene orthologies as tree diagrams (example).
    Read more...
  • Core data patches

    The following non-schema changes have been made to the core database.
    Read more...

  • API changes
    The API has been updated to reflect changes to the schema, including setting xref versions to 0 if undefined, and supporting ditag tables.
    Read more...
  • Compara updates

    Protein/Protein

    Updates of orthologues/paralogues and families to include the new species and gene sets announced.
    Read more...

  • Schema changes

    A number of patches and additions have been made to the Ensembl schema this release.
    Read more...

More news...

Statistics

Assembly: Btau 2.0, Mar 2005
Genebuild: Ensembl, Dec 2005
Database version: 40.2c
Known genes: 5,969
Projected genes: 11,682
Novel genes: 5,580
Pseudogenes: 723
snRNA genes: 863
rRNA genes: 405
snoRNA genes: 403
misc_RNA genes: 81
miRNA genes: 277
Genscan gene predictions: 127,898
Gene exons: 215,926
Gene transcripts: 33,714
Base Pairs: 3,144,226,132
Golden Path Length: 2,619,062,895
Most common InterPro domains: Top 40 Top 500
 

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Ensembl release 40 - Aug 2006
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