Page 4 of 4 FirstFirst ... 234
Results 31 to 39 of 39

Thread: A Rare Deep-Rooting D0 African Y-Chromosomal Haplogroup and Its Implications

  1. #31
    Registered Users
    Posts
    322
    Location
    USA
    Y-DNA (P)
    H-Z4417
    mtDNA (M)
    M3d

    Quote Originally Posted by TuaMan View Post
    So you're assuming the other D2 samples would fall under the same clade as the M174+ YFull guy? Is there any way we can get a hold of the samples from ISOGG?
    YFull has not defined a clade for him yet since they need two samples with common SNPs to define a new clade - so he remains M174* on YFull.

    I am indeed assuming the YFull guy is more closely related to the Filipino samples that are assigned D2 by isogg than to all other D samples in YFull.

  2. #32
    Registered Users
    Posts
    1,708
    Sex
    Omitted

    If E = African and D = Asian wasn't confusing enough...
    Now we have the first split in D within Africa?
    Certainly an interesting puzzle. Would be so simple if DE = North Africa, CT = Eurasia.
    But somehow Asians ended up with D1 (is that what it would be called now?) with no special autosomal connection to North Africa at all.
    Then again C and F seem to have coexisted alongside each other amongst the ancestors of Eurasians from ~75-55kya.
    Maybe pre-D1 made it into the initial Eurasian pool within that timeframe and was just unlucky enough to drift out of the group that split off to become West Eurasians?
    Last edited by Kale; 06-23-2019 at 11:51 PM.
    Collection of 14,000 d-stats: Hidden Content Part 2: Hidden Content Part 3: Hidden Content PM me for d-stats, qpadm, qpgraph, or f3-outgroup nmonte models.

  3. #33
    Registered Users
    Posts
    554
    Sex

    Quote Originally Posted by Kale View Post
    If E = African and D = Asian wasn't confusing enough...
    Now we have the first split in D within Africa?
    Certainly an interesting puzzle. Would be so simple if DE = North Africa, CT = Eurasia.
    But somehow Asians ended up with D1 (is that what it would be called now?) with no special autosomal connection to North Africa at all.
    Then again C and F seem to have coexisted alongside each other amongst the ancestors of Eurasians from ~75-55kya.
    Maybe pre-D1 made it into the initial Eurasian pool within that timeframe and was just unlucky enough to drift out of the group that split off to become West Eurasians?
    According to information posted on Roberta Estes' blog, the phylogenetic structure of currently known members of D-FT75 is (Syrian [Nigerian Saudi]), i.e. the deepest split is between one branch that has been observed both in West Africa and in the Arabian Peninsula and another branch that has been observed only in the Levant.

  4. The Following 3 Users Say Thank You to Ebizur For This Useful Post:

     K33 (12-18-2019),  palamede (06-26-2019),  Ryukendo (06-24-2019)

  5. #34
    Registered Users
    Posts
    1,708
    Sex
    Omitted

    That makes it much less confusing!
    Collection of 14,000 d-stats: Hidden Content Part 2: Hidden Content Part 3: Hidden Content PM me for d-stats, qpadm, qpgraph, or f3-outgroup nmonte models.

  6. #35
    Registered Users
    Posts
    12
    Sex

    This is interesting.
    A plausible scenario seems to be that: DE may have originated in Africa as the paper suggests, seemingly likely East Africa (with E also originating/diverging there and staying and with one branch, E1b1b, later leaving for the Near East). And the D/D0 split could also have happened in (or near) East Africa, with D going east to Asia, and with some D0 moving deeper into Africa eventually to West Africa (e.g. Nigeria) and other D0 moving toward the Middle East (and with D0, as far as we know, dying out in regions in-between—leaving a few derived remnant lineages in both Africa and the Near East)—It seems that its (D0's) origin might likely have been in between the regions where it is now found (i.e. possibly originating in East Africa/northeast Africa, in between West Africa and the Middle East/West Asia—it is now found deep in Africa on the one hand, and in the Middle East near Africa on the other).

    It also seems possible that the Middle Eastern D0, or some of the Middle Eastern D0 (especially the Saudi Arabian) could be the result of African gene flow into the Near East in more recent times (as was sometimes suggested for the proposed DE there), the Arab slave trade being one episode of this, and there is evidence of small amounts of African gene flow in much of the Middle East (some of it deriving from West/central Africa specifically, which is where some D0 is found). Some of the slaves brought to the Middle East came from the Bantu ethnic groups of Eastern Africa (Kenya, Tanzania, etc) who had ancestry ultimately originating from the Bantu homeland around Cameroon, not far from southeast Nigeria where the Nigerian D0 is found (which is, I believe, the Cross River region, not far from the Bantu homeland). D0 is, like DE, now very rare today both in Africa and Asia (likely once being more widespread but having largely died out/been mostly replaced by other haplogroups).

    It would be great though to find ancient y-dna from the relevant periods in various parts of Africa and Eurasia, preferably mesolithic or earlier (however likely that may be). Hopefully, at the least, the purported Tibetan "DE" (and basal Filipino D) will be analyzed soon.
    Last edited by Jm8; 06-27-2019 at 04:16 AM.

  7. #36
    Registered Users
    Posts
    12
    Sex

    Edit: "...DE may have originated in Africa as the paper suggests, seemingly likely East Africa (with E also originating/diverging there and mostly staying in Africa—with one branch, E1b1b, later leaving for the Near East"

  8. #37
    Registered Users
    Posts
    73
    Sex
    Location
    USA
    Ethnicity
    Filipino
    Nationality
    US
    Y-DNA (P)
    P
    mtDNA (M)
    M7C1C3

    There is a Ydna D* in Yfull from the Philippines.

  9. #38
    The Haplogroup J expansion in the near east destroyed the original Haplogroup E and D diversity.
    this studies are severely lacking, only ancient dna can lead to the true story.

  10. #39
    Registered Users
    Posts
    322
    Location
    USA
    Y-DNA (P)
    H-Z4417
    mtDNA (M)
    M3d

    Quote Originally Posted by Nebro View Post
    The Haplogroup J expansion in the near east destroyed the original Haplogroup E and D diversity.
    Your guess is probably valid for E. But D0 in Western Eurasia likely faced an earlier near extinction for whatever reason, much like C1a. I say that because it has not been found in any Near Eastern aDNA.

Page 4 of 4 FirstFirst ... 234

Similar Threads

  1. Replies: 20
    Last Post: 01-03-2019, 10:57 PM
  2. Replies: 48
    Last Post: 02-20-2017, 08:17 PM
  3. Replies: 123
    Last Post: 07-27-2016, 11:37 PM
  4. Replies: 218
    Last Post: 07-06-2016, 01:13 PM
  5. Replies: 0
    Last Post: 03-06-2013, 10:54 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •