|
Click
Here to Go to the Analysis Table
of Contents
Located
on the Stark Family Y-DNA Project Web Site
Description
of Analysis Articles
Part 1: Y-DNA Analysis
of the Descendants of Aaron Stark [1608-1685]
The male Y-chromosome is handed down from father to son
relatively unchanged through the generations. A comparison of the Y-DNA of two
males with the same surname can determine their relatedness to each other.
Groups of males with the same surname so tested and compared can define family
groups and establish a probability they have a most recent common ancestor who
lived within the last 20 generations. The
usage of surnames did not become common until the 13th and 14th
centuries. By the year 1500, surname usage had become common
practice. Considering that one generation is about 25 years or
more, then the year 1500 or before would be the approximate
equivalent of about 20 generations prior to the present
generations.
Part II: Genetic Genealogy
Analysis of the Descendants of Aaron Stark [1608-1685]
All
of the male individuals discussed in Part I of this report have been found to be descendants of Aaron
Stark [1608-1685] of Connecticut. The Genetic
Results Table presented in Part I suggests there is a high
probability these men all have a common ancestor who lived within the
previous 20 generations. The genealogy of the participants suggests all of
the members share Aaron Stark [1608-1685] as a common ancestor who lived
within the previous 13th generation relative to Member 98044.
Part
II will analyze
the genetic results of those members having 37 marker haplotypes.
Appendix
1: Defining
the Ancestral Haplotype of Aaron Stark [1608-1685]
The genealogical research suggests Aaron Stark I [1608-1685] was the
common ancestor of all of the members in the genetic program. Using the Genetic
Results Table and the Genealogical
Lineage Table, the
triangulation method devised by Charles F. Kerchner, Jr. will be employed
to define the P37 Ancestral Haplotype of Aaron Stark [1608-1685].
Appendix
2: Haplotype and DYS Marker Life Expectancy Calculations
Mutation Rate: The rate at which a
genetic marker or
haplotype mutates
or changes over time; expressed as a decimal value or a percentage. Commercial
DNA testing laboratories use an average haplotype mutation rate most often
given as 0.002, 0.003, and 0.004. Depending on the study, these average
mutations for all of the markers in a haplotype applies to the general male
population as a whole.
Surname projects
having genealogical research of
high quality with one common ancestor identified as the progenitor —
can have average mutation rates that do not agree with the literature.
The number of participants and the genealogy
of the descendants of Aaron Stark [1608-1685] is of sufficient quality
that it becomes possible to calculate the average mutation rate for various
Haplotypes and DYS Markers.
Appendix
3: Summary of DYS Marker Mutations
Summarizes the suggested allele values of the complete
population of individuals reported in the Genealogical
Lineage Table reported in Part 1.
|