Ancient DNA from the Sahara
#1
It looks like the researchers have uncovered a new cluster, previously unknown, and related to the Iberomaurusians. It is reportedly the first study with ancient samples from the Sahara. It will be interesting when it gets published.

ABSTRACT HG2-005
Genomes from Pastoral Neolithic Sahara reveal ancestral north African lineage

Quote:Max Planck Institute for Evolutionary Anthropology, Germany
Co-authors: Marieke van de Loosdrecht1,2, Arev Pelin Sümer1, Stefania Vai3, Alexander Hübner1, Kay
Prüfer1, Raffaela Bianco1, Marta Burri4, Mary Anne Tafuri5, Giorgio Manzi5, Harald Ringbauer1, David
Caramelli3, Savino di Lernia5,6, Johannes Krause1

1 Max Planck Institute for Evolutionary Anthropology, Germany
2 Wageningen University, the Netherlands
3 University of Florence, Italy
4 Swiss Ornithological Institute, Switzerland
5 Sapienza University of Rome, Italy
6 University of Witwatersrand, South Africa


[quote]Known as one of the most arid areas on the planet today, the Sahara Desert was, in fact, a green savannah in the Holocene, dotted by forests and water bodies that promoted human occupation and fostered pastoralism. Due to the present-day climatic conditions, ancient DNA does not preserve well in the region, resulting in limited knowledge of the Sahara’s demographic past. Here, we report the first ancient human genome-wide data from the Saharan Pastoral Neolithic. We obtained genomic data from two ca. 7000-yearold female pastoralists buried in the Takarkori rock shelter at the heart of the Tadrart Acacus massif in southwestern Libya, which was used as a burial ground by pastoral communities. We find that the majority of the Takarkori individuals’ ancestry stems from a previously unknown lineage that appears to have remained isolated for most of its existence. Both individuals are most closely related to the preceding 15,000-year-old foragers from Morocco associated with the Iberomaurusian techno-complex, whereas both Takarkori and Iberomaurusian individuals are distantly related to sub-Saharan African lineages. The quality of one of the genomes from Takarkori is sufficient to detect prospective Neandertal ancestry and we find evidence for few segments of ancestry that sum to a total comparable to that detected in the genomes of sub-Saharan Africans. Our results therefore support a model of cultural diffusion, rather than human migration, for the emergence of pastoralist subsistence in the Sahara region.
Sailing waters never before sailed (DNA technology uncovering the past).
Reply
#2
(10-06-2023, 01:41 PM)Piquerobi Wrote: It looks like the researchers have uncovered a new cluster, previously unknown, and related to the Iberomaurusians. It is reportedly the first study with ancient samples from the Sahara. It will be interesting when it gets published.

ABSTRACT HG2-005
Genomes from Pastoral Neolithic Sahara reveal ancestral north African lineage

Quote:Max Planck Institute for Evolutionary Anthropology, Germany
Co-authors: Marieke van de Loosdrecht1,2, Arev Pelin Sümer1, Stefania Vai3, Alexander Hübner1, Kay
Prüfer1, Raffaela Bianco1, Marta Burri4, Mary Anne Tafuri5, Giorgio Manzi5, Harald Ringbauer1, David
Caramelli3, Savino di Lernia5,6, Johannes Krause1

1 Max Planck Institute for Evolutionary Anthropology, Germany
2 Wageningen University, the Netherlands
3 University of Florence, Italy
4 Swiss Ornithological Institute, Switzerland
5 Sapienza University of Rome, Italy
6 University of Witwatersrand, South Africa


Quote:Known as one of the most arid areas on the planet today, the Sahara Desert was, in fact, a green savannah in the Holocene, dotted by forests and water bodies that promoted human occupation and fostered pastoralism. Due to the present-day climatic conditions, ancient DNA does not preserve well in the region, resulting in limited knowledge of the Sahara’s demographic past. Here, we report the first ancient human genome-wide data from the Saharan Pastoral Neolithic. We obtained genomic data from two ca. 7000-yearold female pastoralists buried in the Takarkori rock shelter at the heart of the Tadrart Acacus massif in southwestern Libya, which was used as a burial ground by pastoral communities. We find that the majority of the Takarkori individuals’ ancestry stems from a previously unknown lineage that appears to have remained isolated for most of its existence. Both individuals are most closely related to the preceding 15,000-year-old foragers from Morocco associated with the Iberomaurusian techno-complex, whereas both Takarkori and Iberomaurusian individuals are distantly related to sub-Saharan African lineages. The quality of one of the genomes from Takarkori is sufficient to detect prospective Neandertal ancestry and we find evidence for few segments of ancestry that sum to a total comparable to that detected in the genomes of sub-Saharan Africans. Our results therefore support a model of cultural diffusion, rather than human migration, for the emergence of pastoralist subsistence in the Sahara region.

it will be interesting to compare these to oub002, I wonder if they are more ana shifted
Reply
#3
On my phone at the moment, have they released the raw samples?
Reply
#4
I don't think they have, if I am not mistaken.
Sailing waters never before sailed (DNA technology uncovering the past).
Reply
#5
Any update on this?
Reply
#6
(10-06-2023, 03:26 PM)Gene188288 Wrote:
(10-06-2023, 01:41 PM)Piquerobi Wrote: It looks like the researchers have uncovered a new cluster, previously unknown, and related to the Iberomaurusians. It is reportedly the first study with ancient samples from the Sahara. It will be interesting when it gets published.

ABSTRACT HG2-005
Genomes from Pastoral Neolithic Sahara reveal ancestral north African lineage

Quote:Max Planck Institute for Evolutionary Anthropology, Germany
Co-authors: Marieke van de Loosdrecht1,2, Arev Pelin Sümer1, Stefania Vai3, Alexander Hübner1, Kay
Prüfer1, Raffaela Bianco1, Marta Burri4, Mary Anne Tafuri5, Giorgio Manzi5, Harald Ringbauer1, David
Caramelli3, Savino di Lernia5,6, Johannes Krause1

1 Max Planck Institute for Evolutionary Anthropology, Germany
2 Wageningen University, the Netherlands
3 University of Florence, Italy
4 Swiss Ornithological Institute, Switzerland
5 Sapienza University of Rome, Italy
6 University of Witwatersrand, South Africa


Quote:Known as one of the most arid areas on the planet today, the Sahara Desert was, in fact, a green savannah in the Holocene, dotted by forests and water bodies that promoted human occupation and fostered pastoralism. Due to the present-day climatic conditions, ancient DNA does not preserve well in the region, resulting in limited knowledge of the Sahara’s demographic past. Here, we report the first ancient human genome-wide data from the Saharan Pastoral Neolithic. We obtained genomic data from two ca. 7000-yearold female pastoralists buried in the Takarkori rock shelter at the heart of the Tadrart Acacus massif in southwestern Libya, which was used as a burial ground by pastoral communities. We find that the majority of the Takarkori individuals’ ancestry stems from a previously unknown lineage that appears to have remained isolated for most of its existence. Both individuals are most closely related to the preceding 15,000-year-old foragers from Morocco associated with the Iberomaurusian techno-complex, whereas both Takarkori and Iberomaurusian individuals are distantly related to sub-Saharan African lineages. The quality of one of the genomes from Takarkori is sufficient to detect prospective Neandertal ancestry and we find evidence for few segments of ancestry that sum to a total comparable to that detected in the genomes of sub-Saharan Africans. Our results therefore support a model of cultural diffusion, rather than human migration, for the emergence of pastoralist subsistence in the Sahara region.

it will be interesting to compare these to oub002, I wonder if they are more ana shifted

I'm just hoping they find ANA samples jaja
Maternal grandpa's mtDNA: L1b1a

23andMe: 55.5% European, 33.7% Indigenous American, 4.2% WANA, 3.4% SSA & 3.2% Unassigned
AncestryDNA: 55% Europe/Sephardic Jew, 38% Indigenous Americas-Mexico, 4% MENA & 3% SSA
FamilyTreeDNA: 56.9% Europe, 33% Americas, 8.2% MENA, <2% Horn of Africa & <1% Eastern India
Living DNA: 63.3% West Iberia, 34.4% Native Americas & 2.3% Yorubaland
MyHeritage DNA: 77.5% Mexico, 21.4% Iberian & 1.1% Moroccan

qpAdm
P-value: 0.211980
Jalisciense: 55.1% Early Medieval Iberian ± 3.4%, 33.5% Native American ± 2%, 6.4% African ± 1.2% & 5% North African ± 3.7%
Reply
#7
(02-15-2024, 05:44 AM)Jalisciense Wrote:
(10-06-2023, 03:26 PM)Gene188288 Wrote:
(10-06-2023, 01:41 PM)Piquerobi Wrote: It looks like the researchers have uncovered a new cluster, previously unknown, and related to the Iberomaurusians. It is reportedly the first study with ancient samples from the Sahara. It will be interesting when it gets published.

ABSTRACT HG2-005
Genomes from Pastoral Neolithic Sahara reveal ancestral north African lineage

it will be interesting to compare these to oub002, I wonder if they are more ana shifted

I'm just hoping they find ANA samples jaja

What mtDNA do you expect ANA to have carried?
Reply
#8
(09-14-2024, 09:56 PM)Inquirer Wrote:
(02-15-2024, 05:44 AM)Jalisciense Wrote:
(10-06-2023, 03:26 PM)Gene188288 Wrote: it will be interesting to compare these to oub002, I wonder if they are more ana shifted

I'm just hoping they find ANA samples jaja

What mtDNA do you expect ANA to have carried?

Idk bro, the unique thing I know about ANA is due the graphic of Dr.Iosef Lazaridis.
Maternal grandpa's mtDNA: L1b1a

23andMe: 55.5% European, 33.7% Indigenous American, 4.2% WANA, 3.4% SSA & 3.2% Unassigned
AncestryDNA: 55% Europe/Sephardic Jew, 38% Indigenous Americas-Mexico, 4% MENA & 3% SSA
FamilyTreeDNA: 56.9% Europe, 33% Americas, 8.2% MENA, <2% Horn of Africa & <1% Eastern India
Living DNA: 63.3% West Iberia, 34.4% Native Americas & 2.3% Yorubaland
MyHeritage DNA: 77.5% Mexico, 21.4% Iberian & 1.1% Moroccan

qpAdm
P-value: 0.211980
Jalisciense: 55.1% Early Medieval Iberian ± 3.4%, 33.5% Native American ± 2%, 6.4% African ± 1.2% & 5% North African ± 3.7%
Reply
#9
(09-15-2024, 07:35 PM)Jalisciense Wrote:
(09-14-2024, 09:56 PM)Inquirer Wrote:
(02-15-2024, 05:44 AM)Jalisciense Wrote: I'm just hoping they find ANA samples jaja

What mtDNA do you expect ANA to have carried?

Idk bro, the unique thing I know about ANA is due the graphic of Dr.Iosef Lazaridis.

I imagine that they carried a subclade of L3. Perhaps their maternal haplogroup was M1b, which was rare among the Taforalt specimens relative to U6a. There's a hypothesis that M1, the predecessor of M1b, formed in North Africa and that the Eurasian branches of M descend from a sibling lineage that was carried out of Africa. 

By the way, is there a link to the abstract of this paper? I cannot find it via Google.
Reply
#10
Any update on the samples being released
Reply
#11
We have the high quality oub002.SG Morocco_OUB_EpiP.SG 5680-5550calBCE. It is in the new v62 dataset.
Reply
#12
(09-17-2024, 04:56 PM)TanTin Wrote: We have the high quality oub002.SG Morocco_OUB_EpiP.SG 5680-5550calBCE. It is in the new v62 dataset.

Is there a new dataset I didn’t know?

Can you link me to the new dataset thanks
Reply
#13
(09-17-2024, 05:11 PM)Genetics189291 Wrote:
(09-17-2024, 04:56 PM)TanTin Wrote: We have the high quality oub002.SG Morocco_OUB_EpiP.SG 5680-5550calBCE. It is in the new v62 dataset.

Is there a new dataset I didn’t know?

Can you link me to the new dataset thanks

Link to v62 Dataset.

(09-17-2024, 04:56 PM)TanTin Wrote: We have the high quality oub002.SG Morocco_OUB_EpiP.SG 5680-5550calBCE. It is in the new v62 dataset.

What haplogroups does oub002 carry? Are they in the data set? Also, I have the G25 coordinates for oub002. The ancestry of this sample doesn't seem to be much different from that of the Taforalt samples, and it's about ten thousand years younger. It doesn't provide any new insight into the ancestral origins of paleolithic North Africans, so what's so special about it?
Reply
#14
(10-03-2024, 09:13 PM)Inquirer Wrote:
(09-17-2024, 05:11 PM)Genetics189291 Wrote:
(09-17-2024, 04:56 PM)TanTin Wrote: We have the high quality oub002.SG Morocco_OUB_EpiP.SG 5680-5550calBCE. It is in the new v62 dataset.

Is there a new dataset I didn’t know?

Can you link me to the new dataset thanks

Link to v62 Dataset.

(09-17-2024, 04:56 PM)TanTin Wrote: We have the high quality oub002.SG Morocco_OUB_EpiP.SG 5680-5550calBCE. It is in the new v62 dataset.

What haplogroups does oub002 carry? Are they in the data set? Also, I have the G25 coordinates for oub002. The ancestry of this sample doesn't seem to be much different from that of the Taforalt samples, and it's about ten thousand years younger. It doesn't provide any new insight into the ancestral origins of paleolithic North Africans, so what's so special about it?

(female) .. .. U6a6b
Reply
#15
(10-03-2024, 09:44 PM)TanTin Wrote:
(10-03-2024, 09:13 PM)Inquirer Wrote:
(09-17-2024, 05:11 PM)Genetics189291 Wrote: Is there a new dataset I didn’t know?

Can you link me to the new dataset thanks

Link to v62 Dataset.

(09-17-2024, 04:56 PM)TanTin Wrote: We have the high quality oub002.SG Morocco_OUB_EpiP.SG 5680-5550calBCE. It is in the new v62 dataset.

What haplogroups does oub002 carry? Are they in the data set? Also, I have the G25 coordinates for oub002. The ancestry of this sample doesn't seem to be much different from that of the Taforalt samples, and it's about ten thousand years younger. It doesn't provide any new insight into the ancestral origins of paleolithic North Africans, so what's so special about it?

(female) .. .. U6a6b

Is that information in the dataset? How do I find it in there? Also, why do you find this sample to be so special?
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)