The GEDMatch 'One-to-many' matches page shows who you match in the GEDMatch database and the amount of autosomal DNA and X-chromosome DNA you share with them.
GEDMatch has the ability to link family trees and has several useful tools to compare trees between matches. Once you have your GEDMatch account set up and autosomal data files added, the next step is adding a tree. To add your tree to GEDMatch, you upload a GEDCOM file.
Once yoOnce you have created a GEDMatch account, you can upload one or more autosomal DNA files. This will allow you to match against the GEDMatch database and use GEDMatch's tools.
GEDMatch is a 3rd party tool site for autosomal DNA. It allows matching between multiple DNA testing companies. It also has tools that are not found elsewhere.
Gencove is a DNA testing service created by Tomaz Berisa, Kaja Wasik, and Joe Pickrell. You can join either by uploading your autosomal DNA results from another testing company (FTDNA, 23andMe, Ancestry, GenesforGood) or by ordering a DNA test from Gencove.
23andMe sent out the following message to all of their customers today.
DNA Segments and their reliability for identifying DNA shared between descendants of a common ancestor are central to autosomal genetic genealogy. It is generally accepted that as the size of a DNA Segment decreases its likely reliability also decreases and the likelihood that it is a false positive increases. Thus, the subject of Small DNA Segments is a controversial and important topic.
In human genetics and genetic genealogy, autosomal DNA refers to the twenty-two chromosome pairs that make up the human autosome.
Archaeogenetics it the formal study of archaeology (ancient history) using genetics and DNA testing of ancient DNA samples.
Ancient DNA (aDNA) comes from grave sites that predate the modern era. It can be considered to include forensic DNA samples.