TY - JOUR A1 - Schalkwyk, Leonard C. A1 - Cusack, Brian A1 - Dunkel, Ilona A1 - Hopp, Martina A1 - Kramer, Markus A1 - Palczewski, Stefanie A1 - Piefke, Jutta A1 - Scheel, Sabine A1 - Weiher, Michael A1 - Wenske, Gunther A1 - Lehrach, Hans A1 - Himmelbauer, Heinz T1 - Advanced Integrated Mouse YAC Map Including BAC Framework Y1 - 2001/12/01 JF - Genome Research JO - Genome Research SP - 2142 EP - 2150 DO - 10.1101/gr.176201 VL - 11 IS - 12 UR - http://genome.cshlp.org/content/11/12/2142.abstract N2 - Functional characterization of the mouse genome requires the availability of a comprehensive physical map to obtain molecular access to chromosomal regions of interest. Positional cloning remains a crucial way of linking phenotype with particular genes. A key step and frequent stumbling block in positional cloning is making a contig of a genetically defined candidate region. The most efficient first step is isolating YAC (Yeast Artificial Chromosome) clones. A robust, detailed YAC contig map is thus an important tool. Employing Interspersed Repetitive Sequence (IRS)-PCR genomics, we have generated an advanced second-generation YAC contig map of the mouse genome that doubles both the depth of clones and the density of markers available. In addition to the primarily YAC-based map, we located 1942 BAC (Bacterial Artificial Chromosome) clones. This allows us to present for the first time a dense framework of BACs spanning the genome of the mouse, which, for instance, can serve as a nucleus for genomic sequencing. Four large-insert mouse YAC libraries from three different strains are included in our data, and our analysis incorporates the data of Hunter et al. and Nusbaum et al. There is a total of 20,205 markers on the final map, 12,033 from our own data, and a total of 56,093 YACs, of which 44,401 are positive for more than one marker.[The sequence data described in this paper have been submitted to the GenBank data library under accession nos. BH174059–BH175013.] ER -