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Archiver > GENEALOGY-DNA > 2005-09 > 1127344683


From: "Edward Felstead" <>
Subject: Re: Felstead TMRCA, hg E3b (was Re: [DNA] SMGF adjustments to FTDNA values)
Date: Thu, 22 Sep 2005 00:18:03 +0100
References: <380-220059220214337977@M2W087.mail2web.com> <43308839.6020402@dna-fingerprint.com> <REME20050920182157@alum.mit.edu> <op.sxfa9wsxpqnhvj@pablo> <009001c5be39$39effe50$0100a8c0@chrissam> <op.sxfdbclzpqnhvj@pablo> <00c101c5be3e$424f7300$0100a8c0@chrissam> <001c01c5beb5$a6d62fe0$0100a8c0@chrissam> <op.sxg1kudbpqnhvj@pablo>


Thank you David.
I am getting into this little by little.
If you bear with me for one more question please -
"What is an ancestral haplotype and how is it determined"?
I am getting confused between an HAPLOGROUP and an HAPLOTYPE.
Thanks again.
Best wishes
Edward
----- Original Message -----
From: "David F Reynolds" <>
To: <>
Sent: Wednesday, September 21, 2005 10:20 PM
Subject: Felstead TMRCA, hg E3b (was Re: [DNA] SMGF adjustments to FTDNA values)


> Edward,
>
> I'm assumming this is your ysearch record:
> http://www.ysearch.org/lastname_view.asp?viewuid=HPF4Y&p=0
>
> There appears to be four lines of interest in the SMGF database; all match on 33 markers
> (36 alleles), with 3 more varying between the four.
> #1 yours, going back five generations to William Felstead
> (DYS448=21, DYS449=31, Y-GATA-C4=22)
> #2 an English one, going back five generations to Joseph Felstead
> (DYS448=21, DYS449=32, Y-GATA-C4=22)
> #3 a Canadian one, going back three generations to a George Felstead
> (DYS448=20, DYS449=31, Y-GATA-C4=23)
> #4 an English one, going back five generations to another George Felstead
> (DYS448=20, DYS449=32, Y-GATA-C4=23)
>
> One point of interest is that all of these Felstead lines appear to be haplogroup E3b,
> which is relatively uncommon in Great Britain. I don't think there can be any doubt that
> all are descended from a common ancestor.
>
> SMGF's TMRCA calculation between yourself and #2 shows there is a 25% chance that you
> have common ancestor within 6 generation, 50% within 11 generations, and 75% within 17
> generations. Depending on who does the calculation (and the mutation rate and
> years/generation numbers they use), the numbers will vary, but the answer will always be
> in terms of a probability for a number of generations -- there is no way to calculate a
> precise answer.
>
> Question to TMRCA experts on the list: Given the above, how might one calculate a TMRCA
> for a common ancestor to all four lines, given that an ancestral haplotype cannot be
> deduced from the above data.
>
> Regards,
> david
>
> On Wed, 21 Sep 2005 07:06:24 -0700, Edward Felstead <> wrote:
>
>> Dear David
>> I followed the procedure as you outlined and it worked perfectly.
>> I now have a 36/36 with my son and a 35/36 match with another participant with the SAME
>> NAME and from the SAME COUNTRY.
>> I am not well versed re DNA match's so I wonder if you could give me your opinion
>> with regard to my relationship with the person who I match 35/36.
>> I believe this is known as the MOST RECENT COMMON ANCESTOR and is expressed in
>> GENERATIONS?
>> Thank you for your help.
>> Best Wishes
>> Edward
>> ----- Original Message -----
>> From: "Edward Felstead" <>
>> To: <>
>> Sent: Wednesday, September 21, 2005 12:51 AM
>> Subject: Re: [DNA] SMGF adjustments to FTDNA values
>>
>>
>>> Thanks David -I will have a go at that!
>>> Edward
>>> ----- Original Message -----
>>> From: "David F Reynolds" <>
>>> To: <>
>>> Sent: Wednesday, September 21, 2005 12:39 AM
>>> Subject: Re: [DNA] SMGF adjustments to FTDNA values
>>>
>>>
>>>> There are 11 values which do not have FTDNA equivalents (i.e., FTDNA does not test
>>>> for
>>>> them). To find out what those values are is basically a trial-and-error process. The
>>>> way I do it to look at the values for each marker listed at:
>>>> http://smgf.org/marker_details.html
>>>> and start with the most common value for the particular marker, and then cycle from
>>>> there. Usually takes about 15-30 minutes, depending on how unusual some of the values
>>>> are.
>>>>
>>>> Regards,
>>>> david
>>>>
>>>> On Tue, 20 Sep 2005 16:15:44 -0700, Edward Felstead <> wrote:
>>>>
>>>>> Hi David
>>>>> I was just reading your posting Re FTDNA and SMGF.
>>>>> I wonder if you could help me.
>>>>> I have a full 37 marker test with FTDNA but when I enter my values on SMGF I can
>>>>> only
>>>>> use 25 of the box's to enter my values as I don't have the FTDNA equivalents to
>>>>> SMGF.
>>>>> How did you manage to enter 36!
>>>>> Thanks
>>>>> Best wishes
>>>>> Edward
>>>>> ----- Original Message -----
>>>>> From: "David F Reynolds" <>
>>>>> To: <>
>>>>> Sent: Tuesday, September 20, 2005 11:54 PM
>>>>> Subject: [DNA] SMGF adjustments to FTDNA values
>>>>>
>>>>>
>>>>>>
>>>>>> If I tick "Family Tree DNA" on the SMGF search page, I get these results:
>>>>>> http://tinyurl.com/due6n
>>>>>>
>>>>>> Equivalent search if I tick "Do not convert (use SMGF standard)":
>>>>>> http://tinyurl.com/d57vu
>>>>>>
>>>>>> SMGF applies the following adjustments if "Family Tree DNA" is selected:
>>>>>> DYS19 +1
>>>>>> DYS448 +3
>>>>>> DYS461 -1
>>>>>> DYS463 +2
>>>>>> Y-GATA-H4 +1
>>>>>>
>>>>>> The 36/36 match is me, the 35/36 (with the missing DYS463) match is my son.
>>>>>>
>>>>>> Regards,
>>>>>> david
>>>>>>
>>>>>>
>>>>>> ==============================
>>>>>> Search the US Census Collection. Over 140 million records added in the
>>>>>> last 12 months. Largest online collection in the world. Learn more:
>>>>>> http://www.ancestry.com/s13965/rd.ashx
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
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>>>>>> Checked by AVG Anti-Virus.
>>>>>> Version: 7.0.300 / Virus Database: 267.11.3 - Release Date: 9/19/2005
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>> ==============================
>>>> Search the US Census Collection. Over 140 million records added in the
>>>> last 12 months. Largest online collection in the world. Learn more:
>>>> http://www.ancestry.com/s13965/rd.ashx
>>>>
>>>>
>>>>
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>>>> Checked by AVG Anti-Virus.
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>>>>
>>>>
>>>
>>>
>>>
>>> --
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>>>
>>>
>>> ==============================
>>> Search the US Census Collection. Over 140 million records added in the
>>> last 12 months. Largest online collection in the world. Learn more:
>>> http://www.ancestry.com/s13965/rd.ashx
>>>
>>>
>>>
>>> --
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>>> Checked by AVG Anti-Virus.
>>> Version: 7.0.300 / Virus Database: 267.11.3 - Release Date: 9/19/2005
>>>
>>
>>
>>
>
>
>
>
> ==============================
> Search Family and Local Histories for stories about your family and the
> areas they lived. Over 85 million names added in the last 12 months.
> Learn more: http://www.ancestry.com/s13966/rd.ashx
>
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Anti-Virus.
> Version: 7.0.300 / Virus Database: 267.11.3 - Release Date: 9/19/2005
>



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