Big Y700

Any discussions regarding y-DNA markers, results or questions.

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Sun Mar 24, 2019 11:34 pm
FTDNA is offering a Big Y700 upgrade for $179 for anyone already with Big Y500. It is expensive enough for an upgrade but some experts say that it is a new test and might require a new dna sample!

The standard price for the upgrade from Big Y-500 to Big Y-700 will be $249. The $179 price is a sale price good to March 31st.

https://blog.familytreedna.com/wp-conte ... ressed.pdf

Also, a post by Charles the U106 admin expert.
"A clade with multiple SNPs defining it represents a period of problems, where it appears that other lines of descent have gone patrilineally extinct due to famine, climate change, war, plague, etc.

An example is Z8, defined by over a dozen SNPs. In reality, this clade descends from its parent Z7 via over a dozen SNPs taking place descendantly over a 1,000+ year time frame. All of the branches that must have formed along the way, have all gone patrilineally extinct, unless some tester eventually layers out this huge number of SNPs at the same clade branch point on our tree.

We know that there was a famine, followed by a cold period, in Northern Europe during this time"


It just means that if one cannot break down their YSNP block they are hammered as far as their family history is concerned! One cannot follow the YDNA trail without testers and their cluster locations along with the TMRCA's.

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Wed Mar 27, 2019 2:35 pm
I ordered the Big Y700 upgrade when became available on my page. I wrote to my Big Y matches and asked them to consider upgrading as well so that we could flesh out any new YSNPs found in our results. My results are due in the middle of June probably due to the high number of testers who bought the upgrade.

I would like FTDNA to publish my indels in the results page along with YSNPs. They have not done so in the past and I have downloaded the huge file with all the variants but I cannot tell which indels are specific to my Y line without having access to other testers files. They have listed the YSNPs in my results page but not the indels which can be very useful for splitting downstream clades.

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Thu Mar 28, 2019 7:42 pm
dartraighe wrote:I ordered the Big Y700 upgrade when became available on my page. I wrote to my Big Y matches and asked them to consider upgrading as well so that we could flesh out any new YSNPs found in our results. My results are due in the middle of June probably due to the high number of testers who bought the upgrade.

I would like FTDNA to publish my indels in the results page along with YSNPs. They have not done so in the past and I have downloaded the huge file with all the variants but I cannot tell which indels are specific to my Y line without having access to other testers files. They have listed the YSNPs in my results page but not the indels which can be very useful for splitting downstream clades.


I was one of the first people to buy the upgrade. Big Y-700 Y700 952 06/03/2019 - 06/17/2019

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Sun Mar 31, 2019 11:07 pm
FTDNA will not email a tester who upgrades about needing a new dna sample. They will just send one in the post if they have not got enough dna for the test. I know because it happened to me before.

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Fri Apr 12, 2019 5:51 pm
I emailed FTDNA about a new dna sample for my Big Y700 test and this is the reply.


"Dear Kit Manager,
Thanks for contacting FTDNA. The lab and I will analyze each case and let you know if a new sample is preferred, is necessary, or if we want to collect one for backup in case of any failures at the time of purchase. We are currently conducting our audit and working our way through the large list to contact customers who fall into one of those categories. If you do not hear from us within the next two weeks, please feel free to respond directly to this email and we will re-analyze your situation.
Best Regards,"

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Thu May 09, 2019 2:10 pm
The Big Y700 is taking a lot longer to complete than what was first stated.

"Thank you for contacting FTDNA! It is usually taking the Big Y-700 tests about 20 weeks to complete, sometimes a little more. So this is still within that amount of time from when your test was batched."

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Sat May 18, 2019 8:16 pm
Here is a link to FTDNA's block tree explained. The numbers in the grey box in the left column are a guide to the TMRCA's for each branch. FTDNA provides two good trees, public and block trees, for testers to get familiar with their specific branches and the number of testers and their origins.


https://dna-explained.com/2019/01/24/fa ... lock-tree/

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Thu Jun 13, 2019 8:39 pm
https://blog.familytreedna.com/human-y- ... ilestones/

"Mutations can sound scary. However, the genealogically relevant parts of the Y chromosome contain very few genes. It’s very unlikely that these mutations, or “variants”, have medical implications."

"The Y chromosome is passed down mostly unchanged from father to son. Small mutations occur randomly every few generations. It’s then passed down to all direct male descendants. Because of this, the genetic signature of every Y chromosome can be scanned to detect the paternal lineage. This all goes back to one man. The common paternal ancestor of all humanity. Commonly called Y-chromosomal Adam, he lived in Africa between 200,000 and 300,000 years ago."


"Earlier this year, we announced an enhanced chemistry formula for Big Y. Big Y-700 provides even greater coverage of the Y chromosome. This allows us to detect even more mutations. As a result, all branches of the great tree of mankind are becoming further refined."

"The human Y chromosome contains about 56 million positions or base pairs. Of them, roughly 23 million base pairs (40%) are useful for phylogenetic analysis. In these 23 million positions, we’ve detected over 500,000 unique mutations in the total 32,000 Big Y testers. Our phylogenetic specialists work hard on refining the Haplotree as new results arrive. In May 2019, we passed 20,000 branches. The branches are defined by over 150,000 unique mutations. This makes our Haplotree the largest and most detailed phylogenetic tree of mankind in the world."


https://blog.familytreedna.com/wp-conte ... ressed.pdf

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Thu Jun 13, 2019 11:23 pm
I got the results for my Big Y-700 today and I did not have to submit a new sample. I have 11 unnamed variants and 16 named non-matching YSNPs. Also, I have 780 YSTRs. I have lost my two Big Y-500 matches which was to be expected as I am over the FTDNA 30 YSNP threshold now. It does not really matter as I can still see them in my son's page.


I ordered the Big Y-700 upgrade on the 25th March 2019 and I was in batch 952.
Last edited by dartraighe on Fri Jun 21, 2019 4:29 am, edited 2 times in total.

Posts: 3262
Joined: Fri Mar 16, 2012 5:43 pm

MtDNA:
U5b2b
PostPosted: Sat Jun 15, 2019 8:03 pm
dartraighe wrote:I got the results for my Big Y-700 today and I did not have to submit a new sample. I have 27 new YSNPs that I don't match with my son due to fact that I did not order a Big Y-700 for him. Also I have 780 YSTRs so far. I think that will be as far as I can go with YDNA tests. I don't need to order a Big Y-700 upgrade test for my son as I would expect him to have all of my YSNPs. I have lost my two Big Y-500 matches which was to be expected as I am over the FTDNA 30 YSNP threshold now. It does not really matter as I can still see them in my son's page.


I ordered the Big Y-700 upgrade on the 25th march and I was in batch 952.


Eleven of the 27 new YSNPs are unnamed variants and only six out of the other sixteen named YSNPs are of good quality. The VCF that I downloaded contains 247,516 variants and one will need two Big Y-700 testers in the same clade to verify the quality of the new variants.


One of my new YSNPs is BY28689 which is not in the FTDNA tree. This YSNP is in the DYZ19 zone. My son and I have both ref G>C derived with him having 96 reads for C. There are two YSNPs at this position G>C and G>T according to Yfull. This YSNP came up in the Y-500 and Y-700 so it is valid. I have spent some time looking at the BY list on my homepage and checking out the quality of the YSNPs between FTDNA and the Yfull analysis. I have found some new variants. I have a number of YSNPs that Yfull did not use in their analysis but they are showing as valid YSNPs. I don't know where they fit in my part of the Y tree and I don't know why Yfull left them out.


I have 14 new YSNPs starting with RS. I have spent some time examining all 145 BY named YSNPs. Some of them are not in any other R1b branches. FTDNA does not list YSNPs that are specific to each tester. The Y-700 test did not give me a result for Z156, the major branch that I belong to, so each Big Y test has its limits.
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