Add Your Surname Project Data and
Comments to Kerchner's
Surname Projects Y-Chromosome Y-STR Haplotype Mutation Rate Study and Log
Read the Instructions and Then Scroll
Down to the Data Entry Portion
Project Started: 7 January 2005
Note:
One must be able to determine the Deduced Ancestral
Haplotype for the Most Recent
Common Ancestor (MRCA)
for the Panels and Haplotype Sizes for the related males in the group or
cluster you are entering into this Log.
And/or we must be able to unambiguously determine the number of Unique Mutations
Events being observed in the cluster or group.
Thus you most know the traditional genealogy relationships for the related
males tested
back to the Most Recent Common Ancestor (MRCA) for the data being submitted to
the Log.
For example: You may have deduced the Ancestral Haplotype at 37
markers, but do not have enough data to do it at 67 markers.
In that scenario you would only enter the mutation rate data for the 37 marker
panels and haplotype sizes.
In the future if you get more data and can deduce the 67 marker Ancestral Haplotype you
can re-enter your entry and I can delete the prior one.
If you need help with deducing the ancestral haplotype, contact me by email.
To use this log you should
be a Y-DNA Surname Project Coordinator with Y-DNA test results for related
males. You must know the common male ancestor from traditional genealogical
research and have proven relationships for the males which are being included
in the data and calculations used being submitted into this Log in order to sum
up the number of Unique
Transmissions Events (UTEs) and the number of
unique mutations. This usually requires that you have deduced the precise Ancestral Haplotype for
the common male ancestor or have a very good estimate of what it is to use as a
reference point to calculate the number of Unique Mutations
Events in the descendants tested.
This is not a general purpose query page. Do not post general queries. They
will be deleted. This log is intended to collect calculated data for Y-STR
Haplotype Average Mutation rates from various Y-DNA surname projects in order
to better estimate what the overall average Y-STR mutation rate is and to
develop a histogram or scattergram to plot the diversity of haplotype average
mutation rates for surname projects. The Y-STR haplotype average mutation rate
appears to vary considerably from one male line surname project to another.
Current thinking has been that this is all due to statistical aberrations of
one single common underlying average mutation rate. I have hypothesized a new
Y-STR male specific average mutation rate model to explain the variances seen
in average mutation rates from project to project. See this hypothesis
link for more details on that.
Thus, in addition to collecting the data in one place for the benefit of all
Genetic Genealogists, I will use the data collected in this project to test my
hypothesis of male line specific Y-STR haplotype average mutation rates. In
addition this project will collect the surname mutation rate data in one place
to better document this phenomena being observed anecdotally by various genetic
genealogists. Is there a male line specific Y-STR average mutation rate or is
it one size fits all? We will see which model fits best. It will then be up to
the micro-biologists and geneticists to figure out what the underlying causal
mechanism is, if there is a male line specific Y-STR average mutation rate. It
is best to print out this form on paper as a worksheet, obtain and calculate
the needed information to enter, and then come back to
this page to enter it. We Genetic Genealogists can make a contribution to the
body of knowledge about Y-STR mutation rates. Synergy at Work!
This Study and Log Provided Courtesy of Charles F. Kerchner, Jr., P.E.
(Retired). Synergy at Work!
Note: The comment field provided in below form has automatic end-of-line
"line-wrap" feature enabled, as is used in most word processors, so
please do not press the [enter] key when you near the end of a line. Just keep
typing and your word will wrap around to the next line automatically. Please
only press the [enter] key at the end of a paragraph or to provide a deliberate
hard return and line feed for spacing reasons. This will save me editing time
and disk storage space. Thank you.
Another special request from the webmaster: I encourage your comments and
remarks. But, let me point out again that this is not a query page. Please do
not post "searching for" queries or commercial advertising of any
type in this log. Also keep your comments relevant. I hereby give notice that I
reserve the right to edit comments deemed unsuitable for this forum. Thank you
for your consideration.