Refined YAC STS content map of chromosome 15q11–q13. STSs are listed vertically with STRs italicized and underlined. The region is oriented toward the centromere on the upper left and toward the telomere on the lower right. An asterisk (*) is used to indicate STSs, which also represent either known genes or ESTs. Below the STSs are horizontal lines representing YACs with the YAC name indicated. (•) A positive PCR reaction between the STS and YAC indicated. An X is used to represent a negative PCR reaction. (▪) STSs developed from YAC ends. Above the STSs is a horizontal line indicating the genetic distances between STRs present on the Genethon genetic map. The right end of y254B5, used as a hybridization probe in Mutirangura et al. (1993b), is indicated with a circled R. The brackets indicate STSs that cannot be uniquely ordered.
