Oasis
12-27-2023, 12:24 PM
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Usually mtDNA R2’JT of Western Eurasians and mtDNA P of Papuans are treated separately.
However, these mtDNAs got united in one “R2’JT’P haplogroup” in “A Revised Timescale for Human Evolution Based on Ancient Mitochondrial Genomes” . It may mean that there was an intermediary population, which interacted with both mtDNA R2’JT population and Papuan mtDNA P population. “Ancient Mitogenomes Reveal the Origins and Genetic Structure of the Neolithic Shimao Population in Northern China” pointed to the mutation T16357C in the Xinjiang Uyghur mtDNA R2, which is capable of uniting mtDNA R2, mtDNA JT and mtDNA P. "Ancient genomes reveal the complex genetic history of Prehistoric Eurasian modern humans" pointed to the fact that an ancient sample, related to one more important mtDNA R2 mutation (T7657C, also highlighted in the Shimao article), has the similar component to yDNA R* Mal’ta and to potentially yDNA Q-related AfontovaGora3, which means the interaction of yDNA P in general with mtDNA R2. However, T7657C is also observed in Thailand and Australians, which means that the interaction between yDNA P in general and mtDNA R2 had to occur during the very ancient period, since yDNA R and yDNA Q separately did not reach Australia in the Palaeolithic, while yDNA P-V1651* in the Philippines could do this. The materials, gathered by Chinese articles, should allow to come to the conclusion that when yDNA K2b separated into yDNA K2b1 of the ancestors of Papuans and yDNA P, then yDNA K2b1 interacted with mtDNA P, while yDNA P interacted with mtDNA R2, having mtDNA JT as a neighbour, with whom later branches of yDNA P also sometimes interacted. yDNA K2b1 and mtDNA P distributed to Papua-New Guinea (most likely via the southern route ), while yDNA P stayed with mtDNA R2, and yDNA P-V1651* distributed to the Philippines from yDNA P-mtDNA R2 population via Thailand-related territory of Southeast Asia in the Upper Palaeolithic, while the ancestor of yDNA Q and yDNA R stayed with mtDNA R2, also sometimes interacting with mtDNA JT.
The Shimao article points to the following occurences of mtDNA R2, which point to southern Central Asia in-between:
Pakistan_HGDP00155 Pakistan Pakistan Pakistan Pakistan HGDP00155 R2 Cann et al., 2002
NChina_Uygur_HGDP01303 Uygur NChina_UygurXJ Artux, Xinjiang China HGDP01303 R2 Cann et al., 2002
Caucasus_KM245134 Georgian Caucasus Georgia Georgia KM245134 R2 Schönberg et al., 2011
Nothing could stop yDNA P-M1254*, distantly related to HistAndaman, to join yDNA K2a-M2308* Ust-Ishim and travel together to northern latitudes. However, "Ancient genomes reveal the complex genetic history of Prehistoric Eurasian modern humans" still considers the very sample of Ust-Ishim, in whom a signal of yDNA P was observed , a dead end, reiterating that Ust-Ishim per se did not contribute to modern populations. Today yDNA P* occurs in Nepal, which points to the southern route of migration to Southeast Asia.
Usually mtDNA R2’JT of Western Eurasians and mtDNA P of Papuans are treated separately.
However, these mtDNAs got united in one “R2’JT’P haplogroup” in “A Revised Timescale for Human Evolution Based on Ancient Mitochondrial Genomes” . It may mean that there was an intermediary population, which interacted with both mtDNA R2’JT population and Papuan mtDNA P population. “Ancient Mitogenomes Reveal the Origins and Genetic Structure of the Neolithic Shimao Population in Northern China” pointed to the mutation T16357C in the Xinjiang Uyghur mtDNA R2, which is capable of uniting mtDNA R2, mtDNA JT and mtDNA P. "Ancient genomes reveal the complex genetic history of Prehistoric Eurasian modern humans" pointed to the fact that an ancient sample, related to one more important mtDNA R2 mutation (T7657C, also highlighted in the Shimao article), has the similar component to yDNA R* Mal’ta and to potentially yDNA Q-related AfontovaGora3, which means the interaction of yDNA P in general with mtDNA R2. However, T7657C is also observed in Thailand and Australians, which means that the interaction between yDNA P in general and mtDNA R2 had to occur during the very ancient period, since yDNA R and yDNA Q separately did not reach Australia in the Palaeolithic, while yDNA P-V1651* in the Philippines could do this. The materials, gathered by Chinese articles, should allow to come to the conclusion that when yDNA K2b separated into yDNA K2b1 of the ancestors of Papuans and yDNA P, then yDNA K2b1 interacted with mtDNA P, while yDNA P interacted with mtDNA R2, having mtDNA JT as a neighbour, with whom later branches of yDNA P also sometimes interacted. yDNA K2b1 and mtDNA P distributed to Papua-New Guinea (most likely via the southern route ), while yDNA P stayed with mtDNA R2, and yDNA P-V1651* distributed to the Philippines from yDNA P-mtDNA R2 population via Thailand-related territory of Southeast Asia in the Upper Palaeolithic, while the ancestor of yDNA Q and yDNA R stayed with mtDNA R2, also sometimes interacting with mtDNA JT.
The Shimao article points to the following occurences of mtDNA R2, which point to southern Central Asia in-between:
Pakistan_HGDP00155 Pakistan Pakistan Pakistan Pakistan HGDP00155 R2 Cann et al., 2002
NChina_Uygur_HGDP01303 Uygur NChina_UygurXJ Artux, Xinjiang China HGDP01303 R2 Cann et al., 2002
Caucasus_KM245134 Georgian Caucasus Georgia Georgia KM245134 R2 Schönberg et al., 2011
Nothing could stop yDNA P-M1254*, distantly related to HistAndaman, to join yDNA K2a-M2308* Ust-Ishim and travel together to northern latitudes. However, "Ancient genomes reveal the complex genetic history of Prehistoric Eurasian modern humans" still considers the very sample of Ust-Ishim, in whom a signal of yDNA P was observed , a dead end, reiterating that Ust-Ishim per se did not contribute to modern populations. Today yDNA P* occurs in Nepal, which points to the southern route of migration to Southeast Asia.