...
EgyptSearch Forums Post A Reply
my profile | directory login | register | search | faq | forum home

» EgyptSearch Forums » Egyptology » Projecting ancient ancestry in modern-day Arabians and Iranians » Post A Reply

Post A Reply
Login Name:
Password:
Message Icon: Icon 1     Icon 2     Icon 3     Icon 4     Icon 5     Icon 6     Icon 7    
Icon 8     Icon 9     Icon 10     Icon 11     Icon 12     Icon 13     Icon 14    
Message:

HTML is not enabled.
UBB Code™ is enabled.

 

Instant Graemlins Instant UBB Code™
Smile   Frown   Embarrassed   Big Grin   Wink   Razz  
Cool   Roll Eyes   Mad   Eek!   Confused    
Insert URL Hyperlink - UBB Code™   Insert Email Address - UBB Code™
Bold - UBB Code™   Italics - UBB Code™
Quote - UBB Code™   Code Tag - UBB Code™
List Start - UBB Code™   List Item - UBB Code™
List End - UBB Code™   Image - UBB Code™

What is UBB Code™?
Options


Disable Graemlins in this post.


 


T O P I C     R E V I E W
Mansamusa
Member # 22474
 - posted
Check this one out. It gave me a headache to be honest. They associate Basal Eurasian with African populations and then give it a mythic Arabian origin:

"Arabian Peninsula is strategic for investigations centred on the structuring of the modern human population in the three main groups, in the awake of the out-of-Africa migration. Despite the poor climatic conditions for recovery of ancient DNA human evidence in Arabia, the availability of genomic data from neighbouring ancient specimens and of informative statistical tools allow better modelling the ancestry of these populations. We applied this approach to a dataset of 741,000 variants screened in 291 Arabians and 78 Iranians, and obtained insightful evidence. The west-east axis was a strong forcer of population structure in the Peninsula, and, more importantly, there were clear continuums throughout time linking west Arabia with Levant, and east Arabia with Iran and Caucasus. East Arabians also displayed the highest levels of the basal Eurasian lineage of all tested modern-day populations, a signal that was maintained even after correcting for possible bias due to recent sub-Saharan African input in their genomes. Not surprisingly, east Arabians were also the ones with higher similarity with Iberomaurusians, who were so far the best proxy for the basal Eurasians amongst the known ancient specimens. The basal Eurasian lineage is the signature of ancient non-Africans that diverged from the common European-East Asian pool before 50 thousand years ago, and before the later interbred with Neanderthals. Our results are strong evidence to include the exposed basin of the Arabo-Persian Gulf as possible home of basal Eurasians, to be investigated further on namely by searching ancient Arabian human specimens."

Non-African African Basal Eurasians
 
Mansamusa
Member # 22474
 - posted
"Thus, the exposed basin of the
Arabo-Persian Gulf is a possible homeland of basal Eurasians, with an easy corridor linking the
current Hormuz Strait to the Zagros and Caucasus steppes (the east continuum). Recent
archaeological evidence (Heydari-Guran and Ghasidian 2020) is being collected in the Zagros
region, proving that this region was passable in the Middle and Upper Palaeolithic, and included
intermountain plains connected to each other by valleys associated with permanent water and raw
material sources. If the basal Eurasians were located in the Arabo-Persian Gulf, another nonAfrican group would be mingling at a northern location, around Levant, with the autochthonous
Neanderthals, and were the ancestors of the current European and Asians pools. The basal
Eurasians and the Neanderthal admixed group were genetically close, so they most likely
descended from the same African migrant group that did split somewhere. Did the split occur in
southwest Asia after the OOA migration (through either the northern or the southern route (Lahr
and Foley 1994))? Or, alternatively, are our data suggesting that the group split earlier in Africa?"


You think?
 
Mansamusa
Member # 22474
 - posted
The ancient Iberomaurusian sample included in the
analysis was the one with the highest input of the basal Eurasian lineage, even higher than the ones
observed in modern east AP populations. Not surprisingly, cluster A bearing still a mean 20% sub-Saharan African admixture, was in a close position to the Iberomaurusian sample,
with clusters D
(east AP-Iran) and F (west AP) occupying a position similar to the other Levant and Iranian
samples.
 
Elmaestro
Member # 22566
 - posted
This paper is terrible.

Basal Eurasians! "Squint hard enough you'll see em."
 
beyoku
Member # 14524
 - posted
Sounds about right.

 -
 



Contact Us | EgyptSearch!

(c) 2015 EgyptSearch.com

Powered by UBB.classic™ 6.7.3