Re: Back-migrations to Asia (attention: Gisele)

On 14 Jul 2005 09:35:56 -0700, "Lee Olsen" <paleocity@xxxxxxxxxxx>
wrote:

>Gisele,
>
>Got this over at the new Palanth Forum:
>
>"The oldest sample of human DNA ever isolated in the Americas is
>providing a glimpse of how people spread across the land
>masses..........
>
>The caveman belonged to 'lineage D', one of the five founding lineages
>believed to have settled in the Americas more than 10,000 years ago.
>Lineage D is thought to have originated in Asia, and researchers also
>found a close match with a member of the Han ethnic group from Qingdao
>in eastern China."
>
>Nature 07 July 2005, 436:162
>
>It says not peer reviewed yet, what do you think?

I've been trying to get more information on it... Based upon what you
quoted and this:

"More than half of the matches were with members of the the Cayapa
coastal tribe in Ecuador. Others were with members of the Chumash
tribe of California, the Klunk Mound people in Illinois, the
Tarahumara of Chihuahua in Mexico and the Mapuche and Yaghan tribes of
Chile."

I think the sequence which was obtained is the "additional founding"
one described in this article (and, if so, that would be exciting as
they are a bit of a mystery):

Am. J. Hum. Genet., 65:519-530, 1999
mtDNA History of the Cayapa Amerinds of Ecuador: Detection of
Additional Founding Lineages for the Native American Populations

O. Rickards,1 C. Martínez-Labarga,1 J. K. Lum,2 G. F. De Stefano,1 and
R. L. Cann3

http://www.journals.uchicago.edu/AJHG/journal/issues/v65n2/990321/990321.html

A similar sequence was reported in the Qingdao (Shandong) sample and
the Cayapa were originally reported to have no D sequences but later
the ones classified as "Other" (21.7%) at Rickards' website were
determined to belong to haplogroup D via RFLP analysis when they were
found in other areas.

http://www.uniroma2.it/biologia/lab/anthromol/appx2.html#tab1

Similar sequences ere detected in Brazilian, Mexican, Mapuche and
Andean samples as well as ancient Kaweskar & Selknam (100-400 BP)
according to my records but there are not many in total.

About 40% of the mtDNA sequences of Japan and Korea belong to
haplogroup D but the situation is not quite as simple as the one
described below:

"The caveman belonged to ?lineage D?, one of the five founding
lineages believed to have settled in the Americas more than 10,000
years ago."

because D has numerous sub-groups. See Tanaka et al. What someone
should do is determine is whether the D sequence of the Cayapa is
closer to other Native American D sequences or Asian. Complete
sequencing would probably be required for that.

Gisele
.

Relevant Pages

  • Re: Back-migrations to Asia (attention: Gisele)
    ... >>The caveman belonged to 'lineage D', one of the five founding lineages ... >>believed to have settled in the Americas more than 10,000 years ago. ... Haplogroup A = .524 ... > the Cayapa were originally reported to have no D sequences but later ...
    (sci.anthropology.paleo)
  • Updated Three-Stage Model for the Peopling of the Americas
    ... Updated Three-Stage Model for the Peopling of the Americas ... American mitochondrial genome sequences that should not have been ... Bayesian skyline plot analysis of a new dataset of Native American ... genetic variants that define New World ...
    (sci.archaeology)
  • Re: Back-migrations to Asia (attention: Gisele)
    ... >>The caveman belonged to 'lineage D', one of the five founding lineages ... >>believed to have settled in the Americas more than 10,000 years ago. ... Analysis of Ancient DNA from an Individual from Prince of Wales Island: ... haplogroup Q-M3*, which also confirms that the sex of the individual ...
    (sci.anthropology.paleo)
  • Re: Back-migrations to Asia (attention: Gisele)
    ... providing a glimpse of how people spread across the land ... The caveman belonged to 'lineage D', one of the five founding lineages ... believed to have settled in the Americas more than 10,000 years ago. ...
    (sci.anthropology.paleo)
  • Re: SAP Activity At Near 10-year Low
    ... "All of the Aleut-Inuit D sequences belong to different sub-groups than ... the Amerind kind. ... I couldn't help noticing that all of the Asian bottle gourd DNA ... it been in the Americas. ...
    (sci.anthropology.paleo)
Quantcast