Schematic genomic representation based on UCSC (University of California, Santa Cruz) Genome Browser output. Gray horizontal bars above chr3 ideogram denote previously reported HCFP1 linkage regions (chr3:127,454,048130,530,963, all human coordinates are from GRCh37/hg19) (refs. 14 , 15 ) for Fam10 and Fam14, and regions consistent with linkage for Fam1 and Fam9 (63 Mb minimum overlap chr3:76,924,329140,632,237). Under the ideogram are: GRCh37/hg19 nucleotide positions; thick blue horizontal bars denoting Fam1, -2 and -10 to -12 overlapping duplications; genes in the region; structural variants in the DGV (blue duplications, red deletions); and conservation based on the PhyloP score. Hg19 genomic coordinates are: GATA2 (chr3:128,198,270128,212,044), cRE1 (chr3:128,176,017128,176,396), cRE2 (chr3:128,178,158128,178,397) and cRE3 (chr3:128,187,090128,187,620).