DNA Analysis

Thanks for the reply. I got my ethnicity update last week but no new matches yet. We'll see.

Hi all,

Apologies if this is not the correct thread, but just a question on DNA matches.

My father got a message from someone on Ancestry who he has a 935CM DNA match with - I'm just wondering if this is a close or distant match (generally speaking) ? Seemingly this guy is surmising that his dad (passed away) and my dad were brothers. My dad has never known or met any relatives on his side of the family, hence joining Ancestry, so its totally possible, I'm just wondering if 935CM is a high or low number ?

Thanks

so a STR test such as the Y37 will only guestimate what your haplogroup is based on the pattern of STR's. To get an accurate Haplogroup you need to do SNP testing. SNP's are single-point mutations where a DNA nucleotide mutates into another one. STR's are useful for finding close matches (within the last 200 years, though in some cases they'll show matches at deeper date) -- SNP's are more useful for understanding the structure of a lineage on deeper timelines.

When such a SNP arises in a Y-Chromosome lineage it denotes a single point of common ancestry eg. all men carrying a SNP share descent in the first man to carry that SNP.

In example above, M223 could be regarded as the 'ancestral' branch, whereas your I-CTS616 branch could be though of in terms of 'mutation B'

Here some screenshot from FTDNA BigY tree showing structure of M253 and CTS616:

simplified 'cookie trail' would be: I-M223 > I-P222 > I-CTS616

eg. every CTS616+ man is also P222+ and M223+, however not all P222+ men are CTS616+ and likewise not all M223+ individuals are positive for P222.

All three of these SNP's are very deep in time, I'm not fully up on Haplogroup I, but you are looking at branches of lineage that arose at least during the Bronze age. Going off the chart above the average CTS616+ individual has at least 145-150 SNP mutations occur in their Y-Chromosome since CTS616 mutated. It's for this reason that BigY testing is very powerful. As it allows you to discover every SNP mutation that has occurred and as more individuals do the testing you end up seeing connections show up. For example here is a tree showing McManus/O'Connor family of Connacht.

R-BY18115 appears to have arisen during the period 800-1000AD, so far individuals who have tested positive it generally carry either surname McManus or O'Connor. We find individuals with surname McManus exclusively on left branches under R-BY18179, where as O'Connor's are found in all the sub-branches. The McManus family of Connacht is a cadet family of the O'Connor's having branched in the 12th-13th century. This BigY tree also includes a member of the O'Conor Don lineage which provides an anchor showing the link.

Well the tests are subsets, so for example if you have matches at 37 STR's who have tested further (say 67 or 111) you can always upgrade to that level to see if match holds true. Technically it would be cheaper then to update to BigY-700 from say 111 STR's. However in general I would always recommend people wait until sales (FTDNA do several a year) as you can make significant saving on any level of upgrade/new test.

Mine were fairly similar 83% Irish 12% Scottish and 2% Norway. What are genetic community matches?

I fall under IM223 also but I’m a few steps down. From reading about it M284 is below yours and then L126. Both of these, especially the latter, seem to have a connection to Scotland.

Hi all,

I sent off a sample to Ancestry DNA last week and they received it today. How long after receiving the sample does it take them to analyse and issue the results ?

It's says 6-8 weeks on the box but wanted to check ?

I didn't get it on offer (Paid full price of €95) so I am hoping they aren't as busy as say after Christmas.

Hopefully it will be a quick turnaround.

Thanks very much. How accurate was it ? I am trying to find out info about my Dad's side as I don't know anything really about them. Thanks

Yep. I've loaded mine to LivingDNA, Gedmatch, MyHeritage and FTDNA. There may be others I'm missing but I think they're the main ones.

As for it been worthwhile? Absolutely IMO. I've made some progress on my maternal grandmother's side using a match on MyHeritage. The person was a close match on Ancestry but never responded to me. But then I found that they had put together a small tree on MyHeritage and I was able to expand my tree a little bit. I haven't had much success with LivingDNA but that doesn't mean you won't.

And there's no fee involved when uploading it to these sites, so there's that too.

No doubt people are getting reminders now about their Ancestry membership about to expire so just remember that it's set to automatically renew. Last November I paid £90 for a full year and now the price is double that. I've cancelled mine as I'll wait to see if they have any offers going.

Hi All,

So I am at the "DNA Extracted" stage of the Ancestry Test.

How long does it take for the results to be issued ?

It is giving me an estimated date of the 22nd of November, but this seems ages away given that they are extracting it now, surely it doesn't take three weeks to analyze it in a lab ?

Maybe I'm wrong,anyway, thanks all.

Ancestry is who I went with

So I am now at the DNA Analysed stage, still no results. I reckon within the next few days ?