The World’s Largest Y-DNA Haplotree

FamilyTreeDNA’s Y-DNA haplotree includes over 100,000 branches and 830,000 variants — the most detailed paternal ancestry map in the world. Each month, we update this post with the latest growth stats, haplogroup insights, and tools to help you explore your place in history.


Reconstruction of Ötzi the Iceman beside a modern man connected through a rare maternal DNA lineage

Ötzi the Iceman’s DNA Reveals a Living Relative 5,000 Years Later

For years, experts believed Ötzi the Iceman’s maternal lineage had vanished. New genetic research shows that ancient line may still survive today.


World's Largest mtDNA Haplotree - FamilyTreeDNA Blog

The World’s Largest mtDNA Haplotree

A detailed look at the world’s largest mtDNA haplotree, how it continues to grow and refine, and what recent updates reveal about maternal ancestry and population history.


DNA Sequencing Technologies Explained - FamilyTreeDNA Blog

DNA Sequencing Technologies Explained

An accessible overview of the DNA sequencing technologies used in genetic genealogy, from early methods like Sanger sequencing to modern next-generation sequencing.


World's Largest mtDNA Haplotree - FamilyTreeDNA Blog

12,700+ New mtDNA Haplogroups Added to the Updated mtDNA Tree of Humankind

The Updated mtDNA Tree of Humankind has expanded again, adding more than 12,700 new maternal haplogroups. This update deepens global mtDNA coverage and enhances maternal lineage research for genealogists and scientists alike.


Best Genealogy Software & Subscriptions to Gift – FamilyTreeDNA Gift Guide 2025

From family tree programs to research databases and DNA tools, discover this year’s best genealogy software and subscriptions to support any researcher’s next breakthrough.


Top Genealogy Education Gifts – FamilyTreeDNA Gift Guide 2025

Top Genealogy Education Gifts – FamilyTreeDNA Gift Guide 2025

Support the family historian in your life with genealogy education gifts that strengthen their research skills and deepen their connection to the past.


Best Genealogy Books for Every Family Historian – FamilyTreeDNA Gift Guide 2025

Best Genealogy Books for Every Family Historian – FamilyTreeDNA Gift Guide 2025

Celebrate connection, curiosity, and heritage with books that remind us every family has a story worth discovering and passing on.


Best DNA Testing Kits for Genealogists - FamilyTreeDNA Gift Guide 2025

Best DNA Testing Kits for Genealogists – FamilyTreeDNA Gift Guide 2025

From Family Finder to Big Y-700, discover DNA tests that make unforgettable genealogy gifts.


Are Vampire Legends Rooted in DNA Discover the Truth_ Genes and Screams Spooky Tales from the Hallotree Chapter 2 Vampires

Are Vampire Legends Rooted in DNA? Discover the Truth

Real legends rest in your DNA. Explore how genetic testing reveals the truth behind vampires, fear, and the families who inspired the myths.