Cow (Bos taurus)

Explore the Bos taurus genome

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Karyotype

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About the Bos taurus genome

Assembly

Cow Btau_3.1 is a preliminary assembly of the cow, Bos taurus, Hereford breed. The Btau_3.1 assembly used a combined strategy as developed for the rat genome (Nature 428:493-521). The combined strategy is a hybrid of the Whole Genome Shotgun (WGS) approach used for the mouse genome and the hierarchical (BAC clone) approach used for the human genome. The sequencing combines BAC shotgun reads with whole-genome-shotgun (WGS) reads from small insert libraries as well as 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 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 48.7 kb and the N50 of the scaffolds is 997.5 kb. The total length of all contigs is 2.73 Gb. When the gaps between contigs in scaffolds are included, the total span of the assembly is 2.87 Gb. The coverage is 7x.

Annotation

This is a full genebuild on the assembly 3.1 in the standard ensembl way. It also includes sheep BAC ends mapped to the genome

What's New in Ensembl 49

Bos taurus News

There is no Bos taurus-specific news this release.

General News

Release schedule
Ensembl release 50 will occur in July (rather than in April as originally scheduled).
Read more...
API changes - regulatory features
Regulatory feature support has been moved from the core API to the functional genomics API. More information about using the new code...
Removal of viral genes
We have removed a total of about 1200 viral genes from the following species.
Read more...
Mart updates
RGD and SGD Symbol+ID combinations have been introduced, similar to HGNC, MGI and ZFIN. The issue with subsets of homologs being returned has been resolved.
Compara updates
Multiple alignments

We are now using the new enredo-pecan-ortheus (EPO) pipeline for 7-way alignments (placental mammals).
Read more...

More news...

Statistics

Assembly:	Btau_3.1, Aug 2006
Genebuild:	Ensembl, Sep 2006
Database version:	49.3f
Known protein-coding genes:	16,938
Projected protein-coding genes:	1,781
Novel protein-coding genes:	3,027
Pseudogenes:	1,264
RNA genes:	2,496
Genscan gene predictions:	59,639
Gene exons:	217,963
Gene transcripts:	28,958
SNPs:	1,841,734
Base Pairs:	3,247,285,296
Golden Path Length:	3,033,353,239
Most common InterPro domains:	Top 40 Top 500

How the statistics are calculated

Chromosome:	or region
From (bp):
To (bp):

Ensembl Cow