PMC:2427286 / 19224-20173 JSONTXT

{"project":"2_test","denotations":[{"id":"18374297-10331250-2052372","span":{"begin":215,"end":217},"obj":"10331250"}],"text":"Finally, we investigated the possible origins of the J∗(xJ2), I, and R1b chromosomes in more detail by using information from the STR haplotypes. We visualized STR haplotypes within each haplogroup by using networks28 constructed with the nine Y-STRs common to all datasets. Geographical structure was seen in the I and R1b networks (Figure 3), but not in the J∗(xJ2) network. The geographical distributions of Lebanese haplotypes were then investigated in the Y chromosome Haplotype Reference Database43 (YHRD, release 21) with seven Y-STRs so that 51,253 entries from 447 populations could be interrogated. Of the 30 Lebanese R1b haplotypes, six (representing seven individuals) were absent from the database, and 22 of the remaining 24 showed distributions that included Europe and western Asia, as would generally be expected. Most of these haplotypes thus did not provide more precise subregional information about their likely place of origin."}