Dodecad Globe 4
By Dodecad
Admixture Calculator
Calculator Details
Name
Dodecad Globe 4
Target Population
World
Author
Dodecad
Era
Modern
Number of Components
4
Description
Dodecad Globe 4 is a modern-era genetic admixture calculator that analyzes an individual’s autosomal DNA for proportional ancestry across 21 broadly sampled reference populations from around the world. Designed for genealogists, population geneticists, anthropology students, and curious individuals, it estimates the fraction of your genome that most closely matches continental and subcontinental clusters — from multiple European groupings (Northwest, Northeast, Central, South) to diverse Asian, African, and Indigenous American components (Mesoamerican, Andean, Amazonian, North American). The calculator uses allele-frequency contrasts drawn from contemporary reference panels to assign relative contributions and present a simplified portrait of recent population mixture events.
Users gain insight into major ancestral sources shaping their DNA, helping to distinguish broad regional affinities (for example, West versus East African, or South Asian versus Southeast Asian), highlight admixed ancestries, and suggest likely pathways of recent migration and contact. Results are most informative for identifying major continental and subcontinental signals and for comparing relatives or populations in a research context. Historically and genetically, Globe 4 reflects patterns produced by millennia of migrations, trade, conquest, and local population structure; it emphasizes how modern genomes are mosaics of past demographic events rather than discrete labels.
This calculator is valuable because it pairs broad global coverage with recognizable regional resolution, making it useful for exploratory research, teaching, and personal ancestry exploration. It is important to interpret results as probabilistic and relative: proportions depend on the chosen reference samples and cannot resolve precise recent genealogical relationships or exact locations of origin. When used alongside family history, archaeological records, and more specialized local reference panels, Dodecad Globe 4
Reference Populations
European
- Northwest European: Populations with ancestry from regions like the British Isles, France, and Scandinavia.
- Northeast European: Includes populations from countries like Finland, Estonia, and Russia.
- Central European: Populations from Germany, Poland, and neighboring areas.
- South European: Includes populations from Italy, Spain, Greece, and the Balkans.
Asian
- East Asian: Populations from China, Japan, Korea, and Mongolia.
- Southeast Asian: Includes populations from countries like Thailand, Vietnam, and the Philippines.
- South Asian: Populations from India, Pakistan, Bangladesh, and Sri Lanka.
- Central Asian: Includes populations from Kazakhstan, Uzbekistan, and Turkmenistan.
African
- West African: Populations from Nigeria, Ghana, Senegal, and surrounding regions.
- East African: Includes populations from Kenya, Ethiopia, and Somalia.
- Central African: Populations from the Democratic Republic of the Congo and neighboring areas.
- Southern African: Includes populations from South Africa, Namibia, and Botswana.
- North African: Populations from Egypt, Libya, and the Maghreb region.
Amerindian
- Mesoamerican: Indigenous populations from Mexico and Central America.
- Andean: Indigenous populations from the Andes regions of Peru, Ecuador, Bolivia, and Colombia.
- Amazonian: Indigenous populations from the Amazon rainforest regions.
- North American: Indigenous populations from native tribes in the present-day United States and Canada.
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 4 carefully selected modern populations as references, allowing for a detailed breakdown of your genetic heritage.
How It Works
Key Points
- Your DNA is compared to 4 reference populations
- Modern populations are used as references
- Results show your genetic similarity to these populations
Understanding Your Results
Your results will show percentages of genetic similarity to these reference populations. Remember:
- Results reflect genetic similarity, not direct ancestry
- Modern populations are used as references
- Percentages indicate relative genetic contribution from each population
- Results are estimates based on available reference data