Admixture Calculator

GedrosiaDNA World 25

**GedrosiaDNA World 25 — Modern global admixture calculator** Compare your autosomal DNA to a 27-population modern reference panel and receive a clear, 25-component breakdown of global ancestry. Ideal for genealogy enthusiasts and researchers, it highlights regional affinities and historical migration signals (Steppe, EEF, Siberian, Oceanian, African, Native American, etc.) with accessible interpretation and caveats.

25 Components

World Target Region

Kurd Author

Modern Era

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Chapter I

Calculator Details

Comprehensive information about this admixture calculator

Author Kurd

Era Modern

Components 25 Populations

Target Region World

Created November 2022

Kurd

Calculator Creator

About This Calculator

**GedrosiaDNA World 25 — Modern global admixture calculator** GedrosiaDNA World 25 analyzes an individual's autosomal DNA against a modern reference panel to estimate ancestry proportions across the globe. Using 27 curated reference populations that span East and West Eurasia, Africa, Oceania, and the Americas, the calculator decomposes a genome into fine-grained components (World 25) to reveal regional affinities and historical admixture signals. Who it’s for: - Genetic genealogy enthusiasts who want context beyond continental labels - Researchers seeking a compact, interpretable breakdown of global ancestry - People curious about historical migrations reflected in their DNA What you get: - A percentage breakdown across 25 global components derived from 27 reference populations (e.g., East Asian, Siberian, Steppe, Early European Farmer, Near Eastern, South Asian, various African hunter-gatherer and Bantu-lineage references, Oceanian and Papuan, and multiple Native American clusters) - Visual and numerical summaries highlighting dominant ancestries and minor signals - Interpretive notes that connect components to known historical events (e.g., Neolithic farmer expansions, Steppe migrations, Austronesian dispersals, Native American founding waves) Historical and genetic context: This calculator contextualizes modern genomes within major prehistoric and historic population movements. Components like EEF (Early European Farmers), W_STEPPE/E_STEPPE (Steppe ancestries), SHG/WHG hunter-gatherer signals, and multiple African and Oceanian references reflect lineages shaped by migrations, admixture, and founder effects over millennia. Why it’s valuable: - Global scope: meaningful resolution across all inhabited continents - Balanced detail: enough components to highlight subtle mixtures without overwhelming jargon - Modern reference panel: tuned to contemporary population structure for results relevant to living individuals A note on interpretation: Results are statist

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Chapter II

Reference Populations

The populations used as genetic references in this calculator

25 Reference Populations

East Asian

E_ASIAN: Populations from regions including China, Japan, and Korea.

Siberian & Altaic

ALTAIAN: Indigenous groups from the Altai region in Central Asia.
E_SIBERIAN: Populations native to Eastern Siberia.
W_SIBERIAN: Indigenous groups in Western Siberia.

Arctic

ARCTIC: Groups indigenous to the polar regions, such as the Inuit.

Southeast Asian & Oceanian

SE_ASIAN: Populations from countries like Thailand, Vietnam, and Indonesia.
OCEANIAN: Indigenous peoples of the Pacific Islands, including Melanesians and Polynesians.
PAPUAN: Indigenous peoples of Papua New Guinea and nearby regions.

Native American

C_AMERINDIAN: Central American indigenous populations.
S_AMERINDIAN: Indigenous groups of South America.
N_AMERINDIAN: Native American populations of North America.

Near Eastern & South Asian

NEAR_EASTERN: Populations from the Middle East, including ancient fertile crescent civilizations.
BALOCHI: An ethnic group primarily found in Iran and Pakistan.
S_INDIAN: Populations native to Southern India.

African

SSA: Sub-Saharan African populations.
SAN_PYGMY: Indigenous San and Pygmy groups of Southern Africa.
E_AFRICAN_HADZA: Indigenous Hadza populations in East Africa.
C_AFRICAN_BIAKA: Central African Biaka hunter-gatherer groups.
MBUTI: Indigenous Mbuti people of the African rainforest.

European

NE_EUROPEAN: Populations native to Northeast Europe including Baltic countries and Russia.
NEAR_EASTERN: Populations from Middle Eastern regions.
EEF: Early European Farmers who migrated from the Near East.
W_STEPPE: Western Steppe herders, including Proto-Indo-European speakers.

North African

N_AFRICAN: Populations from North African regions such as Egypt and the Maghreb.

Steppe

E_STEPPE: Eastern Steppe populations.
W_STEPPE: Groups from Western Steppe regions.

Prehistoric European & Siberian

SHG_WHG: Scandinavian Hunter-Gatherers and Western Hunter-Gatherers.

Note

Some populations share groupings across broader continental regions where classifications overlap.

Chapter III

Understanding Admixture Analysis

Learn how admixture calculators work and how to interpret your results

What is Admixture Analysis?

Admixture analysis is a method used to estimate your genetic ancestry by comparing your DNA to reference populations from around the world. Think of it as creating a recipe of your genetic makeup, where the ingredients are different ancestral populations.

This calculator uses 25 carefully selected modern populations as references, allowing for a detailed breakdown of your genetic heritage.

How It Works

Your DNA is compared to 25 reference populations
Modern populations are used as genetic references
Results show your genetic similarity to these populations
More accurate with a diverse reference panel

Understanding Your Results

Your results will show percentages of genetic similarity to these reference populations. Remember these important points:

Results reflect genetic similarity, not direct ancestry
Modern populations are used as references
Percentages indicate relative genetic contribution
Results are estimates based on available reference data