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World Families Network

Hints
for the Project Coordinator
15 Jan 2007
WARNING!
You are viewing an old version of our website (circa
2005/2006). Much of the information is out-of-date and many of the
links may no longer work. Please visit the new version of our
website at worldfamilies.net.
The new Hints for Project
Administrators page is located here.
Surname DNA Projects can vary from a
simple project including only a handful of carefully picked participants
who are tested at one time to a wide-ranging project involving hundreds of
participants from many countries who are tested over many years. Whether
the project is simple or complex, small or large, it requires a
Coordinator. That person (or team) is responsible for identifying
participants, coordinating arrangements and communicating results. In the
case of large or extended projects, we recommend that at least two people
share the coordination. (However, that isn’t a hard and fast rule - the
largest Surname Project that we know of is run by one man and it’s been
going for years.)
Surname DNA Project Objectives
vary from simple to comprehensive. Examples:
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The Barton DNA Project is the first step in beginning
to understand how Bartons everywhere are related. Our goal is to
identify every Barton family and find how they are genetically related.
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The Hodges DNA Project
has a goal to compile all known families by
earliest ancestor, including contact info for researchers of the line,
in order to to help families find their branches and work together to
find their common heritage, It also seeks to identify and compile
the separate families through DNA Testing
Picking a testing company is
obviously important. After reviewing the Testing Companies for a
good while, World Families Network has elected to become a Preferred
Provider for Family Tree DNA,
Houston Texas
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Price. Generally, prices have come down over
time, but they are still high enough to be a barrier to participation.
Prices are cheaper for "Groups" at Family Tree DNA. Test prices start as low as $99.
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Family Tree DNA
offers a group price of $149 (plus $2 - $4 postage)
for their 25 marker test and a group price of $189 (plus $2 - $4
postage) for their 37 marker
test. (Their "individual test" prices are considerably higher, so go ahead
and start a Group Project and work to get the additional participants
over time) FTDNA is the
the most widely used Surname testing company, which is an advantage
when you are seeking matches. Their service is
considered outstanding by their customers. Another advantage of using FTDNA is the ease of moving between their set of tests (12, 25, 37
& 67
markers). They also estimate your "Haplogroup"
(your genetic branch, dating to 1000s of years ago)
and retain your sample for 25 years (which can allow future testing on
family members after they have left this life.).
Markers/Alleles.
Generally, the more markers/alleles
reported, the more expensive the test. [Some markers have two or
more counts reported for them, such as DYS385a and DYS385b.
Other markers with multiple alleles are
DYS459 (a&b), YCAII (a&b), DYS464 (a, b, c & d) and CDY
(a&b).]
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12 alleles is typical of the lowest number of
alleles tested. This is an entry level test which can be
useful for screening men of a targeted Surname to see if they
are a possible match. (The tradeoff: a lower price for
initial screening vs. a higher total price, if the test is later
upgraded to additional markers, plus a time delay in getting all the
results.) Generally, these tests are most
effective in proving that a family representative does NOT match a
specific family. Family
Tree DNA offers a 12 allele test for $99 (plus $2 - $4 postage) on a group project.
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The moderate resolution
25 marker test is a good starting point for many researchers, which
is $148 (plus $2 - $4 postage) 25 markers is
basically the minimum number of alleles needed to confirm
relationships.
-
The high resolution 37 marker
test is necessary any time you
are seeking to confirm a common genetic heritage with someone of a
differing surname and no intersecting paper trail and to provide discernment between branches of a
family. It is $189 (plus $2 - $4 postage).
-
The newest standard
offering is a very high resolution 67 marker
at a "Group" rate of $269 (plus $2 - $4 postage). These increased
marker tests are most useful when comparing within a genetic family to identify the "branching" within
that genetic
family.
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FTDNA now offers even more
markers, allowing an individual to test over 100 markers.
(these are available only as an upgrade.)
It is
reasonable to expect even more markers will be offered in the future.
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Family Tree DNA and the other
testing companies use some different markers, resulting in incomplete comparisons from
one company to another.
Examples of the matching between testing companies:
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Family Tree DNA’s “25” has 16
markers in common with the tests that include 24 markers (26
alleles)
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Family Tree DNA’s “37” has
21 markers in common with the tests that include 24 markers (26
alleles)
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Family Tree DNA's "37" has 32
markers in common with the tests that include 43 alleles
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Differences in Marker mutations: There are differences in mutation rates at each marker. The
testing firms are reportedly working on new interpretations of this issue,
with upgraded information expected soon.
Click
here for an analysis on some of the markers
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We based our decision on the
following:
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Customer service
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A larger internal database for
comparison - which is not otherwise accessible
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More useful mutations in the markers unique to FTDNA
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The bundle of services that comes
with the test
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The Haplogroup estimate
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The 25 year sample storage
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The FTDNATiP analysis
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The automated upload into
Y-Search and Mitosearch
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The Sponsorship Program
(called General Fund)
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The multiple Panel pricing allows
buying in phases
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Unique solutions when needed
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FTDNA's overwhelming quantities
of surname projects and project participants
Recruiting participants is
often one of the biggest challenges for a Project Coordinator. Some
thoughts:
-
Make personal contact with researchers you have met
over the course of your traditional research. Seek out the families
that you weren’t related to, as well as those that are “known kin” and
“believed to be kin”. All three groups are important when conducting a
Surname DNA Project. The “most distant” “known kin” will help you best
to define the DNA of your earliest ancestor. You’ll likely want to take
this opportunity to establish whether those “believed to be kin” are
actually related or not. And, the ones you previously concluded
“weren’t kin” will help you define the other Families in the Surname if
you choose to expand the test to all who carry the Surname (and it might
turn out that those “aren’t kin” folks are related after all.).
-
Encourage every researcher you
work with to contact their own circle of researchers - and to make the
same requests of them to participate and to contact their circle of
researchers
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A male researcher can represent his own surname in
the project, but a female researcher will need to arrange for a brother,
father or cousin to represent her line. A researcher working on a
maternal line will have to find a male relative carrying the surname to
represent the family.
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Utilize your Family Historical Society, Family
Reunion, or other organization of your family name to help you find
interest, participants and support. (If necessary, start one)
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Allow the enthusiastic members of the greater surname
family to help. It’s likely that they will identify Family Lines and
contacts that are unknown to you. They may even choose to sponsor
participants to get information on a Family that is of particular
interest to them.
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Post notices on the Surname Boards and Forums such as
GenForum. There are some good ways and some bad ways to do
this. Lauren Boyd posted a message: "How to win friends and influence
List Admins" on Genealogy-DNA-L that spells out appropriate ways to use
the forums, boards & lists.
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Use the new Surname Forums at
WFN Forums or the
Family Tree DNA Forum
. It will
be useful in providing updates to your participants and may help in your
quest to reach more possible participants. (Pick one Forum
and concentrate all discussion)
Identifying the Appropriate Participants can
be a challenge:
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You’ll eventually want at least two representatives
from each Family Line, but testing often starts with only one. (In this
context, “Family Line” is a many generation family group, not the 2-3
generations we normally call our family.)
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Typically, there hasn’t been a large advantage in
having many participants from a single Family, but each additional
result does add detail and confidence to the results. (If you find
mutations between the initial participants of a Family, additional
testing to isolate where those mutation originally occurred can
sometimes be useful.)
-
There is usually little advantage in getting a father
and son, an uncle and nephew, brothers or first cousins to both be
tested, as the probability is quite high that their results will be
identical.
-
Of course, if someone “insists” on being included,
their participation should be welcomed, as there is always some value
added by each participant. We know of several cases where a cluster of
related men provided special and unusual information.
Ideal Separation:
The “ideal”
approach is to have descendants of two different sons of the earliest
known ancestor to represent the Family. If they have matching results,
they establish the Haplotype of the earliest ancestor. (For most of us,
this is difficult-to-impossible, but do get as much “separation” between
participants as possible. The next best is descendants of two sons of
one son of the earliest ancestor. 5th cousins are preferred over 4th
cousins, 4th over 3rd, and so on.)
Targeting: Some projects
target specific Families for testing. Hopefully, there is a researcher
known for each targeted family who can help identify and recruit the
needed representatives for testing. Typical Targets include:
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Families of the Project Coordinator or sponsoring
organization
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Families suspected to be related to the first
Target List
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Families who can trace their genealogy to the
legendary home country or family seat
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Families who can trace their genealogy back many
centuries, possibly even to the time when surnames began common usage
(typically, but not always, 11th to 13th
centuries)
-
Families whose members include the famous and
infamous
Arranging Testing. Each testing company has a
slightly different procedure for registering participants, collecting
testing fees and reporting results. For best results, get that
information directly from the chosen testing firm.
Family Tree DNA has a nice
demo of their testing
process:
Receiving and Analyzing Results.
Each Testing Company has a slightly
different process for reporting the results, but all report the results by
a coded participant test number and put the results by marker in a table.
The typical evaluation compares the
results of two participants. When the comparison is among three or more
results that are not exact matches, the comparison will still be done on
two participant’s results at a time.
In the simplest case, analyzing
results can be a review of the number at each marker to confirm a perfect
match (say 25/25). However, in most cases, there will some
matches and some mismatches. Results are evaluated by counting the number
of exact matches and the number of mismatches. (If the mismatches are one
number apart, they are considered a “one step” mutation. If they are two
numbers away, they are considered a “two step” mutation, etc. Typically,
a two step mutation is counted as two mismatches. In these cases, contact
the testing firm for guidance.)
Most researchers want to know if they
are “related” to another person or family. (Current genetic theories
consider that all people are related at some point in the distant past,
but most researchers are interested in the period after surnames came into
use, or a maximum of about 900 years.) (If
your results are border-line for these guidelines and/or you don’t agree
with these conclusions when evaluating your results against known family
genealogies, contact us to discuss the specifics.)
For those who tested at 12 markers:
-
Matches of less than 9/12 – the two participants
do not share a common ancestor*
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Matches of 9/12 - there is a tiny chance that
the participants share a common ancestor. You'll need to test
at 37 markers to find a true shared genetic match that starts with
such a low match. (The author has not yet seen a 9/12 become
an accepted genetic match)
-
Matches of 10/12 – there is a small
chance that the participants share a common ancestor. Increase to 25
markers and re-evaluate
-
Matches of 11/12 and 12/12 – there is an
improved chance that the participants share a common ancestor.
Increase to 25 markers and re-evaluate
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CAUTION: a 12/12 match - even with the same surname - can be a
random match. If a solid paper trail connects
the 12/12 match, you can be reasonably certain of shared ancestry,
but without the connecting paper trail - you can only be sure by
upgrading
For those who tested at 25 markers:
-
Matches of less than 21/25 – the two participants do not share a common ancestor
-
Matches of 21/25 & 22/25 –
there is a small chance that the participants share a common
ancestor. Consider all of the traditional genealogy insights and try
to obtain more participants to represent the affected families.
Upgrade to 37 markers
-
Matches of 23/25, 24/25 & 25/25 – there is a high probability that participants who share a
surname share a common ancestor. If there is no shared paper
trail, a comparison at 37 or 67 markers can be useful
-
You may also refer to the chart prepared by Family Tree DNA:
Click
Here
For those who tested at 37 markers:
-
Matches of less than 31/37 – the two participants do
not share a common ancestor
-
Matches of 31/37 and 32/37 - the two participants may share a common
ancestor from the early days of surnames. This is an area with
little clear insight. An upgrade to 67 markers is encouraged
-
Matches of 33/37 - some researchers consider this to be a match and
some don't. Upgrade to 67 markers for additional clarity
-
Matches of 34/37, 35/37, 36/37 & 37/37 - the participants share a
recent common ancestor
-
You may also refer to the chart prepared by Family Tree DNA:
Click
Here
For those who tested at 67 markers:
-
Matches of less than 60/67 – the two participants
probably do not share a common ancestor. This is still being
studied
-
Matches of 60/67 and 61/67 - the two participants may share a
common ancestor from the early days of surnames.
This is still being studied
-
Matches of 62/67 and better - researchers consider these to be a
match
-
You may also refer to the chart prepared by Family Tree DNA:
Click
Here
*We
mean a common direct paternal ancestor within the historical period of
surnames."
Even when there is a single result or no match of
results to those within a surname project, it is still possible to make a
comparison. There are several sites established for that purpose.
We
recommend that you and all of your test participants register your results
at these two sites.
Y-search
Y-base
Understanding the scientific process can help you
interpret your results. It also helps your credibility with your
Project’s participants. Rather than trying to put this in our own words,
here is a site where one testing company describes
the Science.
Reporting
and Updating Results and Conclusions.
Your testing company will
provide you with a table of numbers for each of your test participants
after the test is complete. (FTDNA may report the results in batches,
with only a portion of the results for an individual each time) Some
testing firms also send out the individual results to the test
participant. As the number of results increases, this can be very
confusing.
1.
We recommend that results be grouped with
other similar results in a chart. Because this has been a technical
challenge for many, Results
is one of the Pages in the
Free
6 Page Website provided at World
Families Network
2. We also recommend the following:
-
Provide a listing of Surname Families, each listed by
Earliest Known Ancestor
-
Arrange a “Line Leader” for each Family (or part of a
family). This person should be familiar with the family and agree to be
the contact and coordinator of information on that family. (A Patriarch
Page is provided for this purpose by
World Families Network for each Surname Project listed.)
-
Identify enough detail within a Family to identify the
position in the family of each DNA test participant and identify each test
participant by test number (or name, if they choose to disclose their
identity)
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The results be compiled into a Compiled Pedigree chart when
possible. (A page to provide this service is in development at
World Families Network)
Lineages, Haplotypes and MRCAs (Most Recent
Common Ancestors)
-
A glossary of terms is available at this link
-
A Lineage (or Haplogroup) is a group of
Haplotypes, which are closely linked, but not identical. Typically, the
Haplotypes are a close, but not exact match, such as 23/25 or 24/25.
-
A Haplotype is an exact set of markers,
which is used to identify the DNA of one or more test participants.
When two participants are from the same documented genealogy, their
results can define the DNA of their first common ancestor (Haplotype)
-
If there is an exact match (such as 25/25) between the two participants, then a Haplotype has been
established for their common ancestor and for all the intervening
ancestors between the participants and the common ancestor. This is
an important concept and result, as it aids in understanding the
genealogy of a Surname and can help in matching orphan lines to known
genealogies.
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If there are mutations separating the two
participants, then an exact Haplotype for their common ancestor has
not been established. In this case, additional testing may be able to
determine where the mutation occurred and establish a Haplotype for
the common ancestor and a related haplotype for each branch carrying
the mutation.
-
Until an individual has an exact match with
another individual, the Haplotype applies only to him and not to any
relatives. Once a perfect match is identified, the Haplotype includes
the two participants and all the direct ancestors of both participants
to the common ancestor.
-
Note that men from another Family of the
Surname, who were not previously known to be related, may share the
Haplotype found in a Family. This indicates that they share a
common ancestor
who lived even earlier. In this situation, the Haplotype extends
through both participants to each one’s earliest known ancestor
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If the first round of data is inconclusive due
to mutations, than additional Family representatives can be selected
and tested to clarify the specific issue.
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MRCA is a term that is frequently used in
y-chromosome testing.
-
The Most Recent Common Ancestor (MRCA) is easy to
visualize in a known family’s genealogy. He is the ancestor where
the two lines of descendants merge. Ironically, this is the situation
where the MRCA analysis can be the most confusing. MRCA uses the
probabilities of Statistics. If the analysis provides a median or 50%
probability that is close to or the same as the same number of
generations in the known family tree, the MRCA calculation is
“reassuring.” This is pretty unusual. From a statistical vantage,
anything within the 90% confidence interval should also be
reassuring. Much of the time, this will be true in known family
trees, but there is a regular occurrence of mutations within a family
which lay outside of the confidence interval. For this reason, we
recommend against using MRCA calculations within a family tree.
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MRCA can be useful when trying to understand how
long ago the common ancestor of two unrelated men (or Families)
lived. Again, caution is recommended, as the 90% confidence interval
is often between 1-5 and 20-30 generations. This is typically not
very enlightening. Use of the 50% probability as a specific answer
can be very misleading. For most Surname Projects, we
recommend against the use of MRCA or its inclusion in the posted data.
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Comment:
Our Barton DNA Project does not use the MRCA discussion with
participants. A significant number of Surname Project
Coordinators are on record in discouraging the use of this concept
with participants. That said, we encourage a Coordinator to do
what is best for their project.
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For those who want to include this information
or to understand it better, here is a discussion.
Here are a few sites to help you get a more rounded
view of the subject and how some Surname Projects present their results:.
Here are two of our DNA Project sites:
And here are Forums where you can find
Discussions about Genealogy and DNA
[ Home ]
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information is for the private use of any genealogical researcher to
further their own knowledge. It is not to be reprinted in any
form without the written permission of the World Families Network."
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Last Published: 07/30/2005 09:27:16
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