Fig. 1. Genomic structure of Hoxd. Map of the genomic region surrounding Hoxd on MMU2, showing the position of genes. Map position is in bp. Below this is a detailed view of the Hoxd locus itself. Genes are depicted as arrowed boxes indicating the orientation of transcription. White arrowheaded boxes correspond to the nine Hoxd genes (from 1 to 13) and black arrowheaded boxes represent the flanking genes. The grey oval locates a region of non-coding sequence conservation that includes the GCR. The location of BAC and fosmid clones used as FISH probes are shown (see also Table 2). Data and map positions are taken from NCBI Build 35 of the mouse genome (http://genome.ucsc.edu/cgi-bin/hgGateway) and from ENSEMBL v37, Feb 2006 (http://www.ensembl.org/Mus_musculus/index.html).