The ISFG DNA Commission has published guidelines and recommendations on the use of X-STR markers. Linkage and linkage disequilibrium (association of alleles) are of special importance for such evaluations and these concepts and the implications for likelihood calculations are described in more detail. Furthermore it is important to use appropriate computer software that accounts for linkage and linkage disequilibrium among loci, as well as for mutations. The document can be retrieved from the ISFG DNA Commission publication list.
Tillmar, A.O., Kling, D., Butler, J.M., Parson, W., Prinz, M., Schneider, P.M., Egeland, T., Gusmão, L. (2017), 'DNA Commission of the International Society for Forensic Genetics (ISFG): Guidelines on the use of X-STRs in kinship analysis.', Forensic Sci. Int. Genet. 29, 269-275
