Ensembl .Click on a chromosome for a closer view
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 preliminary set of gene predictions for the Btau3.1 assembly consists of genes built from 3 different evidence sources: Bos taurus specific proteins (16,177 genes models), Ensembl predicted proteins in human with a homologue in mouse (15,101 gene models) and Ensembl-predicted proteins in mouse with a homologue in human (15,073 gene models). Also included are alignments of Bos taurus cDNAs and ESTs and of human and mouse cDNAs.
A full Ensembl gene build for Bos taurus is available on the main Ensembl Bos taurus site. The full gene build for Btau_3.1 will be available in early 2007.
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