Irish Type III - Site Map

In This Site

What's New

Family Tree DNA, who also administer the Ysearch database, have at last brought ySearch into line with NIST/ISFG standards with respect to STR markers DYS452 and DYS463.

In the past, people who tested at FTDNA, Ancestry and Genebase were required to adjust these markers before entering in ySearch. ySearch have automatically increased marker DYS452 by 19 points for those records that showed values of 9 to 13 or so. For those who have DYS463 results from FTDNA, your values for this marker have been corrected. If you have had DYS463 tested elsewhere, your DYS463 marker in ySearch has been deleted. You will need to re-enter this marker, so unless your DYS463 was ested at DNA Heritage or Relative Genetics, enter the value from your laboratory without adjustment. If you tested DYS463 at DNA Heritage or Relative Genetics, you will need to add two (2) to the value that your lab reported for this marker.

Please email me if you need any assistance in resetting your markers in ySearch and I will be happy to help.

Site Map of Irish Type III

Irish Type III Home Page

Here we discuss the R1b haplogroup and various clusters within it including the Atlantic Modal Haplotype (AMH). A brief explanation of the Irish Type III cluster is given, definitive STRs and SNPs together with its Origins and Age

Results for Irish Type III

These three pages that show the STR marker values found for members of the cluster, their Spread and SNP markers found for the cluster.

º STR Markers Results

STR Marker Spreadsheet a downloadable (pdf) table of STR results

º SNP Markers

º Spread

Origins of the Irish Type III cluster

A table showing the Irish counties from which the cluster originated which are then summarised in a Counties map of Ireland

Phylogram of the Irish Type III cluster

This page shows the relatedness of Irish Type III members who have tested to 67 STR markers. Often surnames are found together and sometimes spread more widely.

Phylogram Network a Downloadable Phylogram (pdf file)

Surnames in the Irish Type III cluster

As the Irish Type III is the signature of the Dal gCais sept, it is dominated by surnames such as O'Brien, Hogan, Casey and Kennedy, but there are many other surnames found to have these markers.

º Frequency This page shows every Surname found and how often it has occurred in the database

º Notes For some Surnames, additional notes show possible origins or reasons for that name being Irish Type III.