Follow
This project is a meeting place for users who share the J-M410 Y-DNA haplogroup, which means they are related along their paternal lines. Users in this group may want to share their family trees with each other to find overlaps and merge duplicate profiles in order to join or expand the World Family Tree and discover new relatives.
This project is about a Y-haplogroup, which defines a group of men by a shared set of inherited features in the DNA of their Y-chromosome. This implies they have a patrilineal ancestor in common, because only males carry a Y-chromosome, which they inherit from their father. The major Y-haplogroups were formed thousands of years ago, and therefore each group can today include thousands to millions of men. For an introduction, you can visit the Y-DNA Haplogroups project, the DNA Testing project, or start at the beginning with the DNA Primer project.
The J-M410 (Y-DNA) haplogroup is defined by the M410 SNP DNA marker. This haplogroup is also known as "J2a" under the older hierarchical naming scheme for Y-DNA haplogroups. To indicate this correspondence while remaining clear, the haplogroup is sometimes now named as J2a-M410.
The phylogenetic derivation of J2a-M410 from its ancestral J-M304 haplogroup is: J-M304 > J2-M172 > J2a-M410
Introduction to Y-Chromosome DNA
Are you new to the use of Y-chromosome (Ychr) DNA testing for genealogical purposes? Here are some good sources of introductory information:
- Y-chromosome tests @ ISOGG
- DNA Testing for Genealogy, Getting Started: Y-Chromosome, by CeCe Moore
- Using Y-DNA for genealogy, by Debbie Parker Wayne (PDF download)
- [Intro to mitochondrial DNA for genealogy, Video presentation], by Maurice Gleeson
- Understanding Y-DNA Genealogical Testing, by Steve Handy
Supporting Notes
Y-STR or Y-SNP Testing. The most common Ychr testing done today is Y-STR testing, which looks at the pattern of (S)hort (T)andem (R)epeats on a person's Ychr to make predictions about how closely that person is related to others (Is the pattern similar?) and which haplotype they should be assigned (What haplotype do most people with that pattern get assigned to?).
However, Y-STR testing can only make a rough prediction of the haplotype, for example "J2-M172" and can't reliably provide very much detail. Therefore, as the most cost effective approach to getting a detailed haplotype assignment, the usual approach is to initially do Y-STR testing. Then, based on the results, select a Y-SNP panel chosen specifically for the predicted haplotype in order to confirm the prediction and provide a more detailed haplotype assignment. Optionally, if money is not a constraint, going directly to a Next Generation Sequencing (NGS) test will provide both Y-STR and Y-SNP results together, plus even more details than plain STR & SNP tests.