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DNA Analysis

1…457910…22

Comments

  • #302
    wavehopper1
    Registered Users, Registered Users 2 Posts: 356 ✭✭wavehopper1


    Irishweather wrote: »
    How long does it take for the Dublin Plant to process the DNA sample? I have just been notified of my sample going into the lab.

    The Dublin office is administration only. The sample gets sent to the United States for processing. The processing time varies, I was worried that their quoted "6-8 weeks" started from that time, but to be fair, I got my results bang on 8 weeks after I'd posted my sample.
    Best of luck.


  • #303
    wavehopper1
    Registered Users, Registered Users 2 Posts: 356 ✭✭wavehopper1


    I purchased the 23andMe kit as well as the Ancestry kit.
    Looks like most people are doing Ancestry here, and and are familiar with the wait times. Here's some info on 23andMe.

    I posted the 23andMe kit on 11th July from Ireland. Looking at the Fedex tracking info, it arrived in Holland on the 21st July (seems lengthy delay).
    Arrived in France on 22nd July.
    Arrived in Greensboro, North Carolina on 23rd July.
    Arrived in Burlington, North Carolina on 24th July.

    The status is still showing as "in transit". I assume that the 10 day transit from Ireland to Holland means they are using the cheapest option (swimming/walking might be faster).
    Burlington, NC is apparently the location of the lap. Their own FAQ says it can take a week for kits to be opened. I notice that the shipment is a "22 piece" shipment so it looks like kits get bundled up into larger shipments in Holland.
    According to the FAQ, once it hits lab processing it can take "6 to 8 weeks".
    This kit was twice as expensive as the Ancestry one, so I'm disappointed - Ancestry was 8 weeks for me from posting to seeing results.


  • #304
    spurious
    Moderators, Category Moderators, Education Moderators Posts: 27,264 CMod ✭✭✭✭spurious


    I did FTDNA using a discount voucher I got at a genealogy event. Total cost was about 63 euro. I had my results in 30 days.


  • #305
    Wyldwood
    Registered Users, Registered Users 2 Posts: 1,162 ✭✭✭Wyldwood


    I sent a DNA kit to Ancestry for a relative on July 6 and results came back on 24th so they are working super fast at the moment


  • #306
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    Yeah, I noticed that. How long did Processing take?


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  • #307
    Wyldwood
    Registered Users, Registered Users 2 Posts: 1,162 ✭✭✭Wyldwood


    Irishweather wrote: »
    Yeah, I noticed that. How long did Processing take?

    Results were back a week after it went to the lab


  • #308
    srmf5
    Registered Users, Registered Users 2 Posts: 311 ✭✭srmf5


    Wyldwood wrote: »
    Results were back a week after it went to the lab

    It only took a week to process my sample too. I ordered my kit not too long before the Black Friday sale so if I had waited another week or so it probably would have taken a lot longer due to so many orders.


  • #309
    quartz1
    Registered Users Posts: 385 ✭✭quartz1


    I ordered a ydna 37 marker from FDNA on Monday. I did the Ancestry test last year and it gave me excellent results. I am trying to get some information up my Paternal Grandfather's line to see where they originated .


  • #310
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    srmf5 wrote: »
    It only took a week to process my sample too. I ordered my kit not too long before the Black Friday sale so if I had waited another week or so it probably would have taken a lot longer due to so many orders.

    Well, it's been two days since my results went into the Lab Processing process, so I will probably have to wait until next week.


  • #311
    Wyldwood
    Registered Users, Registered Users 2 Posts: 1,162 ✭✭✭Wyldwood


    Is anyone else having problems uploading Ancestry raw data to FTDNA? I uploaded my own results a few months back without any problem but I'm trying to upload a relative's now and it's giving me this message:

    "The specified file 'dna-data-2017-07-29.zip' could not be uploaded. The file is an unsupported version or in a corrupt/malformed format. Please place an order for Family Finder or download the file and try again"

    I've tried downloading the data a couple of times but still getting this message, very frustrating. The results uploaded to Gedmatch fine.


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  • #312
    Wyldwood
    Registered Users, Registered Users 2 Posts: 1,162 ✭✭✭Wyldwood


    Wyldwood wrote: »
    Is anyone else having problems uploading Ancestry raw data to FTDNA? I uploaded my own results a few months back without any problem but I'm trying to upload a relative's now and it's giving me this message:

    "The specified file 'dna-data-2017-07-29.zip' could not be uploaded. The file is an unsupported version or in a corrupt/malformed format. Please place an order for Family Finder or download the file and try again"

    I've tried downloading the data a couple of times but still getting this message, very frustrating. The results uploaded to Gedmatch fine.

    Ok, solved the problem with help from a poster on FTDNA forum so, just in case anyone else experiences the same problem, it appears that the header on the Ancestry download has an error that FDTNA won't accept. Open the downloaded data, if the third line says "array version: V1.0" change that to "AncestryDNA array version: V2.0" save as a text file and upload that to FTDNA. Should work then.


  • #313
    JDERIC2017
    Registered Users Posts: 192 ✭✭JDERIC2017


    Wyldwood wrote: »
    Ok, solved the problem with help from a poster on FTDNA forum so, just in case anyone else experiences the same problem, it appears that the header on the Ancestry download has an error that FDTNA won't accept. Open the downloaded data, if the third line says "array version: V1.0" change that to "AncestryDNA array version: V2.0" save as a text file and upload that to FTDNA. Should work then.


    Hi Wyldwood, can you pm or share link for uploading ancestry raw dna onto FTDNA, does it cost?


  • #314
    miezekatze
    Registered Users, Registered Users 2 Posts: 1,341 ✭✭✭miezekatze


    dubhthach wrote: »
    It's worth remembering that what AncestryDNA call 'Irish' is really a genetic component with wider geographic distubution than just Ireland. It just happens to be modal in modern Irish population. However all regions in Britain will have a certain percentage of 'Irish' likewise for people from Northern France. This hints that the component is probably more reflective of a population dynamics of Bronze/Iron ages.

    The British component by way is extremely close to the 'Western European' one, so close that in Beta calculator they merged it with the French part of 'Western European' producing a component called 'British/Western European'

    I think 'Irish' on ancestry might mean Celtic. I am from central Europe from an area where the Celts lived over 2000 years ago, and apparently I am 10% 'Irish'. I'm not aware of any Irish ancestors (very unlikely) so I think that's the most likely explanation.


  • #315
    srmf5
    Registered Users, Registered Users 2 Posts: 311 ✭✭srmf5


    miezekatze wrote: »
    I think 'Irish' on ancestry might mean Celtic. I am from central Europe from an area where the Celts lived over 2000 years ago, and apparently I am 10% 'Irish'. I'm not aware of any Irish ancestors (very unlikely) so I think that's the most likely explanation.

    On Ancestry Irish is meant to include Ireland, Scotland and Wales. Any ancestors from those areas?


  • #316
    srmf5
    Registered Users, Registered Users 2 Posts: 311 ✭✭srmf5


    I ordered a yDNA 37 marker from FTDNA on the 27th of June. I sent the kit back on the 17th of July and they received it on the 27th of July. It still has to be batched but I think that usually happens on Wednesdays. Hopefully there are no delays with the kit.


  • #317
    p15574
    Registered Users, Registered Users 2 Posts: 761 ✭✭✭p15574


    miezekatze wrote: »
    I think 'Irish' on ancestry might mean Celtic. I am from central Europe from an area where the Celts lived over 2000 years ago, and apparently I am 10% 'Irish'. I'm not aware of any Irish ancestors (very unlikely) so I think that's the most likely explanation.

    Sounds likely to me too. I got an email the other day from someone with 0.4% shared DNA, who MyHeritage described as "1st cousin twice removed - 5th cousin". After comparing notes, we figured it was a mainland-European Celtic link - she is Mexican, with Spanish roots from Galicia and the Basque country, whereas I have no (known) non-Irish roots. Interesting all the same.


  • #318
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    Hi Guys, I got my results this afternoon. I am very shocked! My Genetic Communities are Ulster Irish and Scots, but I have 0% Great Britain in my Ancestry.How can that be, when I have about 25-30% Ulster Scots Ancestry?

    The Regions outside Ireland where, as follows: Europe East, Europe West, Scandinavia, Melanesia and European Jewish. How can I upload my data to other sites? I am looking for clarification on the results to see what has happened to the Great Britain percentage.
    I am not sure where the European West come from as it is quite high.


  • #319
    miezekatze
    Registered Users, Registered Users 2 Posts: 1,341 ✭✭✭miezekatze


    srmf5 wrote: »
    On Ancestry Irish is meant to include Ireland, Scotland and Wales. Any ancestors from those areas?

    Nope, no known ancestors from Britain or Ireland and I can trace my family quite far back.


  • #320
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    I was able to clarify the Genetic Communities and interestingly it has linked me up with Irish in DERRY!


  • #321
    Ipso
    Closed Accounts Posts: 5,995 ✭✭✭Ipso


    I think these labels can also mean that those are the regions where these genes/allelles are most commonly found today. It may be a case of ancestry that is shared with people from Ireland, Scotland and Wales.


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  • #322
    srmf5
    Registered Users, Registered Users 2 Posts: 311 ✭✭srmf5


    Irishweather wrote: »
    Hi Guys, I got my results this afternoon. I am very shocked! My Genetic Communities are Ulster Irish and Scots, but I have 0% Great Britain in my Ancestry.How can that be, when I have about 25-30% Ulster Scots Ancestry?

    The Regions outside Ireland where, as follows: Europe East, Europe West, Scandinavia, Melanesia and European Jewish. How can I upload my data to other sites? I am looking for clarification on the results to see what has happened to the Great Britain percentage.
    I am not sure where the European West come from as it is quite high.

    As I mentioned in a previous post, Irish on Ancestry means Ireland, Scotland and Wales. Since your Great British ancestry is Ulster Scots your results would make sense. It's also possible that some of your Great British ancestry was falsely assigned to Europe West instead of Great Britain.

    You can download your raw data and upload it for free to GEDmatch and MyHeritage. The download option is in the setting of the DNA page. You can also upload to FTDNA for $19 or something like that.


  • #323
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    Yeah, I really doubt I have 0% Great Britain. I mean, if I had 0% Great Britain, how come I was able to see that I had a Scottish Genetic Community?


  • #324
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    srmf5 wrote: »
    Irishweather wrote: »
    Hi Guys, I got my results this afternoon. I am very shocked! My Genetic Communities are Ulster Irish and Scots, but I have 0% Great Britain in my Ancestry.How can that be, when I have about 25-30% Ulster Scots Ancestry?

    The Regions outside Ireland where, as follows: Europe East, Europe West, Scandinavia, Melanesia and European Jewish. How can I upload my data to other sites? I am looking for clarification on the results to see what has happened to the Great Britain percentage.
    I am not sure where the European West come from as it is quite high.

    As I mentioned in a previous post, Irish on Ancestry means Ireland, Scotland and Wales. Since your Great British ancestry is Ulster Scots your results would make sense. It's also possible that some of your Great British ancestry was falsely assigned to Europe West instead of Great Britain.

    You can download your raw data and upload it for free to GEDmatch and MyHeritage. The download option is in the setting of the DNA page. You can also upload to FTDNA for $19 or something like that.
    Hi, thanks for you're reply. I have downloaded by Ancestry DNA data and uploaded it to Gedmatch, it is still downloading. I am not sure GB will show up though as it says 0% on Ancestry, would that not indicate that the GB DNA is non existent in my Chromosomes? 

    What is weird, is that my relatives from the States who matched with me, all have GB DNA.


  • #325
    srmf5
    Registered Users, Registered Users 2 Posts: 311 ✭✭srmf5


    Irishweather wrote: »
    Yeah, I really doubt I have 0% Great Britain. I mean, if I had 0% Great Britain, how come I was able to see that I had a Scottish Genetic Community?

    I know what you mean. I got 2% Great Britain and I have no known Great British ancestry. You would also think at some stage that your Scottish ancestors would have mixed with the English.


  • #326
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    I don't know, but I definitely have Scottish ancestry going by some of the surnames. I'm just not sure what percentage it would be.


  • #327
    srmf5
    Registered Users, Registered Users 2 Posts: 311 ✭✭srmf5


    Irishweather wrote: »
    Hi, thanks for you're reply. I have downloaded by Ancestry DNA data and uploaded it to Gedmatch, it is still downloading. I am not sure GB will show up though as it says 0% on Ancestry, would that not indicate that the GB DNA is non existent in my Chromosomes? 

    What is weird, is that my relatives from the States who matched with me, all have GB DNA.

    I know that the Scottish hate their ancestry being called Irish when it's not. They should really give it a different name like Celtic even if it's not exactly accurate to say that. It can be misleading for people in America who know of Scottish ancestry but get a result that says Irish which can send people on wild goose chases.

    All of the DNA companies have different algorithms so it would vary slightly between the different companies and sometimes it can vary a lot. GEDmatch wouldn't be as useful as MyHeritage or FTDNA for comparison since it doesn't give you a breakdown like the other websites. It will tell you which population you most closely match with but that's it really.


  • #328
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    ....


  • #329
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    Thanks, I've just uploaded my DNA results to MyHeritage. I don't mind the results saying Irish, I'm just surprised that there is no Great Britain in my Ancestry at all, (not even a few percent) considering the Scots Genetic Community. 

    I would like to be able to split my ancestral heritage results into to more defined regions, will MyHeritage do that?


  • #330
    pinkypinky
    Moderators, Society & Culture Moderators Posts: 6,675 Mod ✭✭✭✭pinkypinky


    I really cannot stress enough that these ethnicity estimates are going to change over time as more people test. They're just a fun discussion point but I don't pay much attention to them.

    Genealogy Forum Mod



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  • #331
    JDERIC2017
    Registered Users Posts: 192 ✭✭JDERIC2017


    Hi, I have found a relation that proves the man I researched is actually my great grandfather, only problem is this relation is not answering my messages, I guess it is just a waiting game 😟🤔


  • #332
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    pinkypinky wrote: »
    I really cannot stress enough that these ethnicity estimates are going to change over time as more people test. They're just a fun discussion point but I don't pay much attention to them.
    You would think it would show at the very least,a few percentage points of GB. Considering there is only a Scottish GB genetic community I can assume that the Irish is overinflated.

    With regards to Gedmatch, what is Orcadian? I keep showing up as matches to their population


  • #333
    JamboMac
    Registered Users Posts: 3,953 ✭✭✭JamboMac


    Irishweather wrote: »
    You would think it would show at the very least,a few percentage points of GB. Considering there is only a Scottish GB genetic community I can assume that the Irish is overinflated.

    With regards to Gedmatch, what is Orcadian? I keep showing up as matches to their population

    I think orcadian is the Orkney islands off Scotland.


  • #334
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    Here are my results anyway:
    423844.png


  • #335
    srmf5
    Registered Users, Registered Users 2 Posts: 311 ✭✭srmf5


    Irishweather wrote: »
    You would think it would show at the very least,a few percentage points of GB. Considering there is only a Scottish GB genetic community I can assume that the Irish is overinflated.

    Your lack of a Great Britain percentage doesn't contradict your genetic community of Scottish though since Scottish people get Irish as their highest percentage since it reflects Ireland, Scotland and Wales ancestry. Have a read of this article:
    https://blogs.ancestry.com/ancestry/2017/01/25/ancestrydna-the-irish-connection/

    If you look it up online you'll come across many instances of Scottish people wondering about their result since they come up as being fully nearly Irish. There's not much else I can tell you about your results. I wouldn't get bogged down on it though anyway since as pinky says it's always changing as more people test.

    With regards to GEDmatch Eurogenes K13 I find to be good.


  • #336
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    What would the Eastern European be though, noise? I'm going to wait and see what MyHeritage says in the hope that it gives more clarification.


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  • #337
    srmf5
    Registered Users, Registered Users 2 Posts: 311 ✭✭srmf5


    Irishweather wrote: »
    What would the Eastern European be though, noise? I'm going to wait and see what MyHeritage says in the hope that it gives more clarification.

    Noise or something from very long ago. It is such a small percentage that I wouldn't pay it any heed. Yeah see what MyHeritage gives you.


  • #338
    shar01
    Registered Users, Registered Users 2 Posts: 817 ✭✭✭shar01


    JDERIC2017 wrote: »
    Hi, I have found a relation that proves the man I researched is actually my great grandfather, only problem is this relation is not answering my messages, I guess it is just a waiting game 😟🤔

    Same happened when I found my grandmother's birth family - no response to initial message sent to a "grand niece" of hers despite the person logging in every day. I waited a little while and resent the message. She responded - rather half heartedly I felt.

    Best of luck.


  • #339
    JDERIC2017
    Registered Users Posts: 192 ✭✭JDERIC2017


    shar01 wrote: »
    Same happened when I found my grandmother's birth family - no response to initial message sent to a "grand niece" of hers despite the person logging in every day. I waited a little while and resent the message. She responded - rather half heartedly I felt.

    Best of luck.

    Thanks shar01 I just got a reply ( i know i was impatient) but this is huge news, anyway all good and hopefully more questions will be answered!


  • #340
    dubhthach
    Registered Users, Registered Users 2 Posts: 3,284 ✭✭✭dubhthach


    miezekatze wrote: »
    I think 'Irish' on ancestry might mean Celtic. I am from central Europe from an area where the Celts lived over 2000 years ago, and apparently I am 10% 'Irish'. I'm not aware of any Irish ancestors (very unlikely) so I think that's the most likely explanation.

    Well obviously it has somewhat of a wider spread, for example people form North Wales. 10% is significant level, what should be remember of course is there was widespread Irish migration to the continent during the 17th/18th centuries, with large scale Irish service in the Spanish, French and Austrian armies.

    What I would suggest if possible to get family members (particulary parents tested) to rule see if the component is specific to one segment of your lineage (eg. via one parent over the other etc.)


  • #341
    dubhthach
    Registered Users, Registered Users 2 Posts: 3,284 ✭✭✭dubhthach


    JamboMac wrote: »
    I think orcadian is the Orkney islands off Scotland.

    Indeed, back when this DNA marlarky started in early 2000 the Orkney Islands were a favoured location for population sampling. This was based on idea of:
    • Small island group, history of minimum population input (lets not mention Scapa Flow, or Oil!)
    • As islands off Britain, they were thought to be good approx for a 'indigenous british' sample

    the problem with last idea of course is it completely ignores the history of Orkney eg. that it was part of Kingdom of Norway until the 15th century and that a Old-Norse derived language (Norn) was spoken there as late as the 18th century.

    What we now see with higher coverage testing is that people in Orkney can be modelled as an admixed population with large input (perhaps on order of 20-30% of genome) from Scandinavia. As a result in analysis they fall between mainland Scottish (well or most British) samples and Norway/Scandinavia.


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  • #342
    montgo
    Registered Users, Registered Users 2 Posts: 565 ✭✭✭montgo


    Hi,
    My 3rd cousin has had his Y DNA test results returned. The only problem is that he has only 2 matches and both of them have different surnames. One of these matches show that their earliest known ancestors (from early 1700s) lived in Scotland and the other in Essex with genetic distance of 4 & 5.

    Our confirmed ancestor was born early 1800s in Ireland and we suspect that his ancestors probably came to Ireland at least a century before then.

    So would these matches be considered as non paternal events? What else can I infer from these matches?

    Thanks


  • #343
    dubhthach
    Registered Users, Registered Users 2 Posts: 3,284 ✭✭✭dubhthach


    montgo wrote: »
    Hi,
    My 3rd cousin has had his Y DNA test results returned. The only problem is that he has only 2 matches and both of them have different surnames. One of these matches show that their earliest known ancestors (from early 1700s) lived in Scotland and the other in Essex with genetic distance of 4 & 5.

    Our confirmed ancestor was born early 1800s in Ireland and we suspect that his ancestors probably came to Ireland at least a century before then.

    So would these matches be considered as non paternal events? What else can I infer from these matches?

    Thanks

    Hi,

    If he has done the testing in FamilytreeDNA, please consider joining the Ireland yDNA Project. I will be able to run a genetic distance report comparing your cousin with over 7k members. What level of STR testing has he done? It could be case that at low STR level (25 etc.) that you are only seeing small set of matches due to the matching restrictions (driven by genetic distance) in FTDNA.

    https://www.familytreedna.com/groups/ireland-heritage


  • #344
    Alicat
    Registered Users, Registered Users 2 Posts: 10,264 ✭✭✭✭Alicat


    I do wonder how many possible extra-marital affairs might throw off an expected DNA result...


  • #345
    dubhthach
    Registered Users, Registered Users 2 Posts: 3,284 ✭✭✭dubhthach


    Alicat wrote: »
    I do wonder how many possible extra-marital affairs might throw off an expected DNA result...

    There was a research paper published on NPE (eg. 'Non-Paternity events') couple of years ago looking at Y-DNA lineages. I believe they came up with a probability per generation. However I also think there was another paper which show that level of 'cuckoldry' in men of European origin (eg. where they didn't match their supposed father) was actually quite a low percentage compared to previously thought.

    Of course when it comes to Y-DNA there are other reasons why men with certain surnames might not match such as:
    1. Multiple independent surname occurances eg. Murphy, Kelly etc.
    2. Adoption
    3. Surname change
    4. Surname assimilation eg. rarer surname takes form of a common one eg. O'Diff -> Duffy in Mayo etc.

    To give a slightly different example of contunity, within the Irish genealogical tradition certain surnames form kindreds. So for example in medieval genealogies we see that there are at least two distinct McManus families. One is a branch of the O'Connor's of Connacht (descendant from Maghnus Ua Conchobhair) the other a branch of the Maguires (descendant from Maghnus Mag Uidhre). Unsurprisingly in the McManus DNA project we see two large clusters (along with smaller ones, plus singletons), one of these clusters matches with men bearing surname O'Connor (and other Uí Briúin surnames of Connacht) the other belongs to a genetic cluster called 'Aírgialla II' which contains lot men bearing the surname Maguire.

    In both cases the specific McManus family 'branched' from it's parent surname (O'Connor or Maguire) on the order of 600+ years ago, let we still see genetic matches with other men bearing the 'parent surname'.


  • #346
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    I uploaded my raw data to MyHeritage, and it has been dramatically dulled down, to:

    94.7%, Irish, Scottish and Welsh.
    1.5% Balkan.
    1.2% South Asian.
    2.6% East European.

    So, for me, the West European and Melanesia has been removed, but interestingly the South Asian and East European has not. Does that mean then that I actually do have South Asian ancestry?

    With regards to the 94.7%, can I assume that's all Irish or not? Honestly, it is annoying that these sites group up the Celtc regions, I know that they are similar, but I have to say, that they aren't THAT similar.


  • #347
    Irishweather
    Banned (with Prison Access) Posts: 260 ✭✭Irishweather


    Also, why am I not getting any named matches for my immediate relations (4 grandparents)? It's all names that are way back in my family tree or distant relatives, for example, my maternal grandmother's, mothers surname or my maternal grandmothers, mothers surname.


  • #348
    dubhthach
    Registered Users, Registered Users 2 Posts: 3,284 ✭✭✭dubhthach


    Irishweather wrote: »
    I uploaded my raw data to MyHeritage, and it has been dramatically dulled down, to:

    94.7%, Irish, Scottish and Welsh.
    1.5% Balkan.
    1.2% South Asian.
    2.6% East European.

    So, for me, the West European and Melanesia has been removed, but interestingly the South Asian and East European has not. Does that mean then that I actually do have South Asian ancestry?

    With regards to the 94.7%, can I assume that's all Irish or not? Honestly, it is annoying that these sites group up the Celtc regions, I know that they are similar, but I have to say, that they aren't THAT similar.

    Well Ireland and Scotland are extremely similiar, remember the same language was basically spoken in both for close on 1000 years. The spilt between modern Irish and Scottish Gaidhlig only really dates to post 1200, with common literally standard lasting until about 1600.

    Needless to say the output of a Calculator is dependent on the sampleset it's using as a reference. If they for example don't have a large Welsh sampleset (eg. 100-200+) than a distinct Welsh component won't show up in their run's etc.

    The matches you are getting in Ancestry are due to what's in their testing database, if you don't have any near relatives (within last 100-200 years) containing your surname (or that of your other three grandparents) they won't show up as a match. Obviously as their sample database gets bigger and bigger this will improve.


  • #349
    pjproby
    Registered Users, Registered Users 2 Posts: 842 ✭✭✭pjproby


    food for thought on dna testing

    https://www.irishtimes.com/life-and-style

    https://www.irishtimes.com/life-and-style/abroad/i-thought-i-was-irish-until-i-did-a-dna-test-1.3174491


  • #350
    Ipso
    Closed Accounts Posts: 5,995 ✭✭✭Ipso


    dubhthach wrote: »
    There was a research paper published on NPE (eg. 'Non-Paternity events') couple of years ago looking at Y-DNA lineages. I believe they came up with a probability per generation. However I also think there was another paper which show that level of 'cuckoldry' in men of European origin (eg. where they didn't match their supposed father) was actually quite a low percentage compared to previously thought.

    Of course when it comes to Y-DNA there are other reasons why men with certain surnames might not match such as:
    1. Multiple independent surname occurances eg. Murphy, Kelly etc.
    2. Adoption
    3. Surname change
    4. Surname assimilation eg. rarer surname takes form of a common one eg. O'Diff -> Duffy in Mayo etc.

    To give a slightly different example of contunity, within the Irish genealogical tradition certain surnames form kindreds. So for example in medieval genealogies we see that there are at least two distinct McManus families. One is a branch of the O'Connor's of Connacht (descendant from Maghnus Ua Conchobhair) the other a branch of the Maguires (descendant from Maghnus Mag Uidhre). Unsurprisingly in the McManus DNA project we see two large clusters (along with smaller ones, plus singletons), one of these clusters matches with men bearing surname O'Connor (and other Uí Briúin surnames of Connacht) the other belongs to a genetic cluster called 'Aírgialla II' which contains lot men bearing the surname Maguire.

    In both cases the specific McManus family 'branched' from it's parent surname (O'Connor or Maguire) on the order of 600+ years ago, let we still see genetic matches with other men bearing the 'parent surname'.

    Wasn't there results that showed something similar with surnames linked to Cenel Conail?


  • #351
    torrevieja
    Registered Users Posts: 1,672 ✭✭✭torrevieja


    I have a few questions here, i take it that the more people who do thid DNA test will give a better result in general?

    if my relations or long lost relatives dont do this test how will i possibily get a /match?

    and lastly if i do test with Ancestery and two other different genealogy companies am i going to have the same results ?

    thanks


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