DNA TESTING



Genetic Genealogy is used extensively in helping unravel the complexities of family history. It has even been used in our Carrucan investigations.

To find out about this new and exciting field, visit the International Society of Genetic Genealogy (ISOGG) website at http://www.isogg.org.

Our first exposure to this new field was compliments of Carrucan family member Frances James who was keen to investigate whether there was any connection between the Carrucan and Corrigan names. This project is being tracked on website http://www.worldfamilies.net/surnames/corrigan.

Frank Carrucan (Patrick line) volunteered to have his DNA tested. You can read his and Frances's report below.

The Corrigan connection.pdf

Tracing human genetic backgrounds.pdf

Here is some of the information that Frank was sent after his DNA testing

mtDNA Certificate Mitrochrondia are present in all human cells and have their own DNA. Both males and females have this mtDNA but only females pass it onto their offspring. As a result, the study of mtDNA is essentially the study of female genetic lines within human populations. Mutations, when they occur, are passed down to the children. As these mutations occur over time, they accumulate in a linear or chronological order, allowing scientists to study these changes. With this information, researchers have constructed ancient migration patterns.

Frank's mtDNA differs from the Cambridge Reference Sequence (CRS) in a number of key ways. These can be compared to other people to confirm or rule out common descent, providing genetic evidence of genealogical relationships.
mtDNA Migration This shows the mtDNA Migration Map, starting from Africa over 100,000 years ago.
Haplogroup Certificate Frank has been assigned to Haplogroup R1b1c which is the most common haplogroup in European populations. It is believed to have expanded throughout Europe as humans re-colonized after the last glacial maximum 10-12 thousand years ago. This lineage is also the haplogroup containing the Atlantic modal haplotype.
Haplogroup Migration This chart shows the paths of human migration based on Haplogroup analysis.
YDNA Certificate The Family Tree DNA test examines 37 specific locations on the Y chromosome and helps determine if two people might be related. The certificate shows the outcomes from each of the 37 Loci examined for Frank.

Obviously it's early days yet but the findings do make us ponder the particulars of our long distant ancestors.

Other sites of interest:

https://www.familytreedna.com