Introduction

Thank you for choosing Tribal DNA Genetic Ancestry Analysis. The results reported below indicate the places your overall blend of ancestry is most frequent and where your ancestors left the strongest genetic footprints. Your results come in four parts: Genetic Profile, Native Population Match, Global Population Match, and World Region Match.

Part A: Genetic Profile
Your unique genetic profile includes your allele values for 13 genetic markers distributed throughout your autosomal chromosomes. At each locus, you have two values: one allele inherited from your father and one allele inherited from your mother, for a total of 26 dimensions used to compute your geographic ancestry. Values from all thirteen markers are used to compute high-resolution population and world region matches.

Part B: Native Population Match
These results are your Top 20 matches in a database of 407 native populations that have experienced minimal movement and admixture in modern history (roughly, the last 500 years). Individual matches do not necessarily indicate recent social or cultural affiliation with a particular ethnicity. Instead, the geographical distribution of your Native Population Match results indicates your most likely deep ancestral origins.

Part C: Global Population Match
These results are your Top 20 matches in a database of 567 global populations, including native peoples as well as Diaspora groups that expanded from their homelands and sometimes admixed with other populations in recent history. The geographical distribution of your Global Population Match results indicates your closest genetic relatives today and peoples whose blend of geographical ancestry is most similar to your own.

Interpretation of Native and Global Population Match Results: Native and Global Population Match results can be interpreted in terms of their likelihood (MLI) scores and geographical patterns. Each Native and Global Population Match is listed with a Match Likelihood Index (MLI) score that indicates your odds of belonging to that population relative to your odds of belonging to a generic human population according to the following scale. Higher scores indicate your genetic profile is strongly represented in a population, while lower scores indicate marginal representation in a population.

The geographical pattern of your Native and Global Population Match results indicates the geographical distribution of your genetic ancestry. Concentrated or continuous patterns indicate your ancestry is typical of a specific region, which can be large or small. Multiple clusters of matches can indicate ancestry in multiple regions and/or likely sources of admixture.

All matches can be compared against each other as odds ratios. For instance, if you obtain a score of 25.0 for Bavarian and 5.0 for Macedonian, this means your genetic profile is 25.0/5.0 = 5.0 times as likely to be Bavarian as Macedonian.

Part D: High Resolution World Region Match
World Region Match measures your genetic connections to twenty five world regions:

The map above illustrates the primary genetic affiliation of each region. Populations of most regions also include secondary influences from other regions, and some individuals from each region have their strongest affiliation with another nearby region.

Interpretation of World Region Match Results: World Region Match represents the most comprehensive portion of your genetic ancestry analysis. These regions are the product of long term patterns of interactions between peoples within major geographic and cultural zones over hundreds and often thousands of years. World region results provide a broader, more general view of how your combination of ancestry is distributed in major regions of the world.

The likelihood (odds) of membership in each region for your complete genetic profile is expressed as a numerical score. Scores above 1.0 indicate genetic affinities with a region. Scores below 1.0 indicate insignificant likelihoods below the Generic Human threshold. The highest score indicates your primary geographical affiliation, and subsequent scores indicate secondary regions where your blend of ancestry is present and/or possible sources of admixture.

World Region Match scores can be numerically compared (divided) against each other to produce odds ratios of your relative likelihood in each region. For instance, a North Indian score of 20.0 and a South Indian score of 5.0 indicates your genetic profile is 20.0/5.0=4.0 times as likely to be found in North India as in South India.

Conclusion: This genetic ancestry analysis documents genetic ancestry that dates back thousands of years. The information in this report can complement what you already know about yourself, your family, and your genealogy by putting your ancestry in a global perspective using molecular genetics.