Photo courtesy of Michael MacNeil, USDA
(NHGRI Press Photos)
The October 2007 Bos Taurus draft assembly
(Baylor release Btau_4.0) was produced by the
Baylor College of Medicine Human Genome Sequencing Center.
For more information about this assembly, see
Btau_4.0 in the NCBI Assembly database.
Sample position queries
A genome position can be specified by the accession number of a
sequenced genomic region, an mRNA or EST, a chromosomal coordinate
range, or keywords from the GenBank description of an mRNA. The
following list shows examples of valid position queries for the
Cow genome. See the
User's Guide for more information.
||Genome Browser Response:|
||Displays all of chromosome 28
||Displays first million bases of chromosome 28
||Displays a region of chr 28 that spans 2000 bases, starting with position 1000000
||Displays region of mRNA with GenBank accession
||Displays region of EST with GenBank accession
EE384456 on chr X
||Lists transcribed pseudogenes, but not cDNAs
||Lists mRNAs for caudal homeobox genes
||Lists many zinc finger mRNAs
|kruppel zinc finger
||Lists only kruppel-like zinc fingers
||Lists mRNAs deposited by scientist named Zhang
||Lists mRNAs deposited by co-author S. Moore
| Use this last format for author queries. Although
GenBank requires the search format Moore S, internally it
uses the format Moore,S..
The Btau_4.0 release was produced by the Atlas genome assembly system at
Baylor College of Medicine Human Genome Sequencing Center. The sequencing
strategy combined BAC shotgun reads with whole genome shotgun reads from
small insert libraries as well as BAC end sequences. The assembly contains
chromosomes 1-29 and X as well as 11869 scaffolds (named chrUn.004.*).
The mitochondrial sequence (chrM) was obtained from Genbank
The Btau_4.0 assembly (7.1x coverage) was tested against available
bovine sequence data sets
(EST sequences and finished BAC sequences) for extent of coverage
(completeness). When assembled contigs were tested, over 95% of the sequences
in these data sets were found to be represented, indicating that the shotgun
libraries used to sequence the genome were comprehensive. Of the 1.04 million
EST sequences 95.0% were contained in the assembled contigs. Assuming the ESTs
are uniformly distributed throughout the genome, the estimated genome size is
2.73 Gb/95% = 2.87 Gb.
For detailed information on the sequencing and assembly techniques,
see the Readme file that accompanies this release and the Baylor
Bovine Genome Project web page.
Bulk downloads of the sequence and annotation data are available via
the Genome Browser
server or the
page. These data have specific
conditions for use.
The bosTau4 annotation tracks were generated by UCSC and
collaborators worldwide. See the
page for a detailed list of the organizations and individuals who contributed
to this release.
Genbank Pipeline Details
For the purposes of the Genbank alignment pipeline, this assembly is considered to be: well-ordered.