For example, it is suggested that Helicobacter pylori (HP) could be employed as a marker of ancestry and migrations (Dominguez-Bello and Blaser, 2011), which means people who share a particular strain of HP may have the same ancestor.
Strong genetic markers of Maya ancestry, for example, show up in the genomes of modern people living in the Yucatán Peninsula and the northern part of Mexico's Gulf Coast in the modern state of Veracruz, which likely reflects a pre-Columbian Maya trade or migration route.
Furthermore, we demonstrate that fixed nucleotide differences and polymorphisms in the TNF promoter serve as markers of primate ancestry and biodiversity.
Specific single nucleotide polymorphisms (SNPs) upstream of the proximal human TNF promoter have been identified, which are markers of human ancestry.
As the analysis included more markers of less ancestry informativeness, the estimate of the YRI contribution tended to steer away from 78%, and the mean and the standard deviation of the errors across 100 simulations had an increasing trend for all the measures (Additional file 10, Table S4).
Genotype data from Pacifiplex and 34-plex tests is particularly well suited to analysis of Australian Aboriginal populations and when combined with Y and mitochondrial DNA variation will provide a powerful set of markers for ancestry inference applied to modern Australian demographic profiles.
The results indicated that two SNPs in this panel may contain ancestry information and may be used as markers of forensic biogeographical ancestry inference.
This resulted in genotype information at 1,179,187 ancestry informative markers (∼50% of the total number of ancestry informative markers).
Use of larger multiplexes or tailored AIM-SNP sets will reduce the error associated with interpretation of ancestry markers, particularly those of the two uni-parental loci, when divergence is eroded by extensive population movements between regions due to their demographic history and geographic proximity.
However, these companies differ in their approaches, the types of ancestry markers used and tests they offer.
