Inheritance of loci in the pericentromeric region of the X chromosome in the 26 individuals (of all 349 CEPH meioses; see Methods) in which a recombination event occurred between markers DXS255, DXS153, or intervening loci. Positions of each of the 27 loci are indicated by regularly spaced broken lines and the centromere by bold broken lines (center), and do not reflect genetic distances. Order of these loci is taken from published consensus maps (Nelson et al. 1995; Miller et al. 1995; Nagaraja et al. 1997). Light- and dark-shaded regions, respectively, represent paternally or maternally derived X chromosome material. Between them, solid, vertical lines illustrate regions within which a meiotic recombination event must have occurred. (•) Loci that were both informative and genotyped in a specific meiosis. Recombination events occurred on chromosomes passed to individuals1–12 in Xp, individuals 15–26 in Xq, and possibly across the centromere only in individuals 13 and 14.
