Page 86 of 86 FirstFirst ... 3676848586
Results 851 to 856 of 856

Thread: DISCUSSION THREAD FOR "Genetic Genealogy and Ancient DNA in the News"

  1. #851
    Registered Users
    Posts
    18
    Sex

    Poznik and Underhill have claimed haplogroup E, arose outside Africa

    "When calibrated with a mutation rate estimate of 0.76 × 10−9 mutations per base pair per year9, the time to the most recent common ancestor (TMRCA) of the tree is ~190 ky, but we consider the implications of alternative mutation rate estimates in the “Discussion” section. Of the clades resulting from the four deepest branching events, all but one are exclusive to Africa, and the TMRCA of all non-African lineages (i.e., the TMRCA of haplogroups DE and CF) is ~76 ky (Fig. 1, Supplementary Figs. 18 and 19, Supplementary Table 10, and Supplementary Note). We see a notable increase in the number of lineages outside Africa ~50–55 kya, perhaps reflecting the geographic expansion and differentiation of Eurasian populations as they settled the vast expanse of these continents. Consistent with previous proposals14, a parsimonious interpretation of the phylogeny is that the predominant African haplogroup, E, arose outside the continent. This model of geographic segregation within the CT clade requires just one continental haplogroup exchange (E to Africa), rather than three (D, C, and F out of Africa). Furthermore, the timing of this putative return to Africa—between the emergence of E and its differentiation within Africa by 58 kya—is consistent with proposals, based on non-Y data, of abundant gene flow between Africa and nearby regions of Asia 50–80 kya15".

    Punctuated bursts in human male demography inferred from 1,244 worldwide Y-chromosome sequences (2016)
    http://www.nature.com/ng/journal/v48...s/ng.3559.html

  2. The Following User Says Thank You to Genarh For This Useful Post:

     Hando (09-22-2017)

  3. #852
    Registered Users
    Posts
    567
    Sex
    Y-DNA
    C-M217
    mtDNA
    M8a

    Kyrgyzstan
    http://timesofindia.indiatimes.com/c...w/60431875.cms

    Lucknow: Ancient DNA lab at BSIP to unearth Harappan history

    Mohita Tewari | TNN | Updated: Sep 9, 2017, 10:18 IST

    ... Now, palaeo-scientists would be researching on the DNA of 20 skeletons procured from Rakhigarhi and Farmana in Harappa. The institute will officially declare setting up of the ancient DNA laboratory on its foundation day on September 10. The lab would also be the first in South Asia to study DNA of the prehistoric age. ...

    Judging by the text, they are only starting analysis. But I guess it's a different lab, not the one which should publish results in September(wait, it's already September).

  4. The Following 7 Users Say Thank You to rozenfeld For This Useful Post:

     Agamemnon (09-09-2017), Genarh (09-10-2017), Hando (09-16-2017), Principe (09-09-2017), Richy (09-18-2017), rms2 (09-10-2017), Saetro (09-09-2017)

  5. #853
    Registered Users
    Posts
    4,706

    Quote Originally Posted by Gravetto-Danubian View Post
    Cool.
    Eastern Africans have Levant Neolithic admixture, but Cushitic have addition Iran Neolthic related admixture which sequentially apppears in Bronze Age levant and iron Age Egypt
    Significant west Eurasian gene flow into Africa is further confirmed.
    Multiple inputs Y-E, T, R? There seems to be little if any non-African input on the mt side.

    Malawi_Hora_8100BP_shotgun I2966.SG BT(xCT)
    Malawi_Hora_8100BP I2966 BT(xCT)
    Malawi_Fingira_6100BP I4427 BT(xCT)
    Malawi_Fingira_6100BP I4468 BT(xCT)
    Kenya_400BP I0595 E1b1b1b2
    South_Africa_2000BP I9028.SG A1b1b2a
    South_Africa_2000BP I9133.SG A1b1b2a

  6. The Following 2 Users Say Thank You to parasar For This Useful Post:

     Genarh (09-22-2017), Hando (09-22-2017)

  7. #854
    Gold Member Class
    Posts
    7,678
    Sex
    Location
    Virginia, USA
    Ethnicity
    British and Irish
    Nationality
    USA
    Y-DNA
    R1b-FGC36982
    mtDNA
    U5a2c3a

    Wales Ireland Scotland France Bretagne England Switzerland
    Here is something interesting on blood groups in ancient Europe.

    Jean M first brought it up in this post.

    Ancient steppe people had the highest frequencies of blood type A and of Rh- of the groups included in the study.
     


    Hidden Content


    Y-DNA: R1b-FGC36982 (L21> DF13> Z39589> CTS2501> Z43690> Y8426> BY160> FGC36974>FGC36982)

    Additional Data:
    Lactase Persistent:
    rs4988235 AA (13910 TT)
    rs182549 TT (22018 AA)

    Red Hair Carrier:
    Arg160Trp+ (rs1805008 T) aka R160W

    Dad's mtDNA: K1a1

  8. The Following User Says Thank You to rms2 For This Useful Post:

     Hando (Yesterday)

  9. #855
    Gold Class Member
    Posts
    2,323
    Sex

    Quote Originally Posted by rms2 View Post
    Ancient steppe people had the highest frequencies of blood type A and of Rh- of the groups included in the study.
    You mean type B.

  10. #856
    Gold Member Class
    Posts
    7,678
    Sex
    Location
    Virginia, USA
    Ethnicity
    British and Irish
    Nationality
    USA
    Y-DNA
    R1b-FGC36982
    mtDNA
    U5a2c3a

    Wales Ireland Scotland France Bretagne England Switzerland
    Quote Originally Posted by lgmayka View Post
    You mean type B.
    No, I meant type A. Steppe peoples apparently introduced type B to Europe, but they had a higher frequency of A than the other groups and a higher frequency of Rh-, as well.
     


    Hidden Content


    Y-DNA: R1b-FGC36982 (L21> DF13> Z39589> CTS2501> Z43690> Y8426> BY160> FGC36974>FGC36982)

    Additional Data:
    Lactase Persistent:
    rs4988235 AA (13910 TT)
    rs182549 TT (22018 AA)

    Red Hair Carrier:
    Arg160Trp+ (rs1805008 T) aka R160W

    Dad's mtDNA: K1a1

  11. The Following 2 Users Say Thank You to rms2 For This Useful Post:

     alexfritz (09-22-2017), Hando (Yesterday)

Page 86 of 86 FirstFirst ... 3676848586

Similar Threads

  1. Genetic Genealogy and Ancient DNA in the News
    By History-of-Things in forum Ancient (aDNA)
    Replies: 1584
    Last Post: 09-22-2017, 06:22 AM
  2. Replies: 3
    Last Post: 03-29-2015, 11:18 PM
  3. Replies: 0
    Last Post: 12-26-2012, 07:00 AM

Posting Permissions

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