Figure 1: Male-line ancestry and haplotypes of participants

a, Ancestry. Numbers correspond to reference numbers and names in more detailed genealogical charts for each family. b, Haplotypes. Entries in bold highlight deviations from the usual patterns for the group of descendants. Bi-allelic markers. Order of loci: YAP-SRYm8299-sY81-LLY22g-Tat-92R7-SRYm1532. 0 ancestral state; 1, derived state. Microsatellite short tandem repeats (STRs). Order of loci: 19-388-389A-389B-389C-389D-390-391-392-393-dxys156y. The number of repeats at each locus is shown. Minisatellite MSY1. Each number in brackets represents the sequence type of the repeat unit; the number after it is the number of units with this sequence type. For example, J41 has 5 units of sequence type 3, 14 units of sequence type 1, 32 units of sequence type 3, and 16 units of sequence type 4.

The table and the above explanation accompanied "Jefferson Fathered Slave's Last Child" by Eugene A. Foster, et al., published in Nature on November 5, 1998. Reprinted by permission from Macmillan Publishers Ltd: Nature, 1998.