X-chromosomal STRs in aDNA kinship analysis.

Area of Science:

• Paleogenetics
• Archaeogenetics
• Forensic Genetics

Background:

• Ancient DNA (aDNA) analysis of human skeletal remains aids archaeological investigations.
• Genealogical relationship reconstruction is a key application of aDNA.
• Established genetic markers include autosomal STRs, mitochondrial DNA (mtDNA), and Y-chromosomal STRs (Y-STRs).

Purpose of the Study:

• To explore the utility of X-STRs in ancient DNA kinship reconstruction.
• To demonstrate the application of X-STRs in deficiency cases and father-daughter relationship analysis.
• To showcase X-STRs as a complementary tool to existing genetic markers.

Main Methods:

• Analysis of ancient DNA (aDNA) from human skeletal remains.
• Utilizing X-STR markers for kinship analysis.
• Comparison with autosomal STRs, mtDNA, and Y-STR data.

Main Results:

• X-STR analysis successfully confirmed half-siblingship in Lichtenstein cave.
• X-STRs aided in excluding potential father-daughter relationships in Goslar.
• Sibling relationships in Boilstädt and a father-daughter relationship in Stolpe were investigated.
• X-STRs proved valuable in complex kinship scenarios, including father-daughter relationships.

Conclusions:

• X-STR analysis offers significant advantages for ancient DNA kinship reconstruction.
• X-STRs are particularly useful for resolving relationships difficult to ascertain with other markers.
• X-STRs effectively complement autosomal STRs, mtDNA, and Y-STR data in aDNA studies.