Francesco: I think what Er Monnezza's admixture charts show is that that PPN_Levant is a fundamentally different population than the older Natufians. PPN_Levant starts around 10,000 BC and ends around 6,500 BC, divided into PPN A and B with B reaching all the way into Mesopotamia. Natufian goes back to 13,000 BC and runs into early PPN which succeeded it. I have 2 sets of analyses, G25 comparing the the Levant PPN samples in that spreadsheet with the Natufians. I did the same thing in Dodecad 12B. What the data suggest to me is that there was a shift in the ancestry of Levant PPN vs. the earlier Natufian Levant consisent with gene flow from outside the Levant coming into it from somewhere else. I don't think Genetic drift can explain that big a move in the Levant given the 2 cultures overlapped and are in the same region. Levant PPN likely received geneflow from the North from Anatolia into it and also from its NE/East from the Caucuses (CHG) and Iran_Neolithic type ancestry.
G25 Natufian Source population, Levant PPN target populations
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_PPNC:I1699[/TH]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.11022788[/TD]
[TD]Levant_Natufian:I0861[/TD]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.11308591[/TD]
[TD]Levant_Natufian_contam:I1072
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_PPNB:I1710[/TH]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.14201055[/TD]
[TD]Levant_Natufian:I0861[/TD]
[/TR]
[TR]
[TD="bgcolor: #02FF00, align: right"]0.15008466[/TD]
[TD]Levant_Natufian_contam:I1072
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_PPNB:I1707[/TH]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.11076375[/TD]
[TD]Levant_Natufian:I0861[/TD]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.11830639[/TD]
[TD]Levant_Natufian_contam:I1072
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_PPNB:I0867[/TH]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.12512512[/TD]
[TD]Levant_Natufian:I0861[/TD]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.12705731[/TD]
[TD]Levant_Natufian_contam:I1072
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_PPNB:BAJ001[/TH]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.08157877[/TD]
[TD]Levant_Natufian:I0861[/TD]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.08472717[/TD]
[TD]Levant_Natufian_contam:I1072
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_PPNB_contam:I1704[/TH]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.11323380[/TD]
[TD]Levant_Natufian:I0861[/TD]
[/TR]
[TR]
[TD="bgcolor: #01FF00, align: right"]0.11653658[/TD]
[TD]Levant_Natufian_contam:I1072
[/TD]
[/TR]
[/TABLE]
Dodecad 12b: Source Natufians, Targe population Levant PPN
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_N:I1710:Lazaridis_2016[/TH]
[/TR]
[TR]
[TD="bgcolor: #F6FF00, align: right"]24.16226811[/TD]
[TD]Natufian:I0861:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFF900, align: right"]25.62379753[/TD]
[TD]Natufian:I1687:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFD500, align: right"]29.07266070[/TD]
[TD]Natufian:I1685:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFAB00, align: right"]33.20384616[/TD]
[TD]Natufian:I1069:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFA600, align: right"]33.73085531[/TD]
[TD]Natufian:I1690:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FF2000, align: right"]46.82121955[/TD]
[TD]Natufian:I1072:Lazaridis_2016
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_N:I1707:Lazaridis_2016[/TH]
[/TR]
[TR]
[TD="bgcolor: #D3FF00, align: right"]20.71038387[/TD]
[TD]Natufian:I0861:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #F9FF00, align: right"]24.37743629[/TD]
[TD]Natufian:I1687:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFD700, align: right"]28.89521068[/TD]
[TD]Natufian:I1685:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFC100, align: right"]31.09131390[/TD]
[TD]Natufian:I1069:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFB300, align: right"]32.45980591[/TD]
[TD]Natufian:I1690:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FF3400, align: right"]44.86275515[/TD]
[TD]Natufian:I1072:Lazaridis_2016
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_N:I1704:Lazaridis_2016[/TH]
[/TR]
[TR]
[TD="bgcolor: #3BFF00, align: right"]5.75796839[/TD]
[TD]Natufian:I1687:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #8CFF00, align: right"]13.76355332[/TD]
[TD]Natufian:I0861:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #8FFF00, align: right"]14.00219269[/TD]
[TD]Natufian:I1069:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #8FFF00, align: right"]14.00769074[/TD]
[TD]Natufian:I1690:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #C7FF00, align: right"]19.52983871[/TD]
[TD]Natufian:I1685:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #F4FF00, align: right"]23.87275853[/TD]
[TD]Natufian:I1072:Lazaridis_2016
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_N:I1699:Lazaridis_2016[/TH]
[/TR]
[TR]
[TD="bgcolor: #C0FF00, align: right"]18.79742536[/TD]
[TD]Natufian:I0861:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #DBFF00, align: right"]21.44123597[/TD]
[TD]Natufian:I1687:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FEFF00, align: right"]24.90379088[/TD]
[TD]Natufian:I1685:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFE200, align: right"]27.79432316[/TD]
[TD]Natufian:I1069:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFD700, align: right"]28.90752151[/TD]
[TD]Natufian:I1690:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FF5600, align: right"]41.57611333[/TD]
[TD]Natufian:I1072:Lazaridis_2016
[/TD]
[/TR]
[/TABLE]
[TABLE="class: distances"]
[TR]
[TH="align: right"]Distance to:[/TH]
[TH="align: left"]Levant_N:I0867:Lazaridis_2016[/TH]
[/TR]
[TR]
[TD="bgcolor: #B6FF00, align: right"]17.82867073[/TD]
[TD]Natufian:I0861:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #CBFF00, align: right"]19.85513284[/TD]
[TD]Natufian:I1687:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFFC00, align: right"]25.34251566[/TD]
[TD]Natufian:I1685:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFE700, align: right"]27.39744331[/TD]
[TD]Natufian:I1069:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FFDC00, align: right"]28.42078641[/TD]
[TD]Natufian:I1690:Lazaridis_2016[/TD]
[/TR]
[TR]
[TD="bgcolor: #FF5C00, align: right"]41.02833046[/TD]
[TD]Natufian:I1072:Lazaridis_2016
[/TD]
[/TR]
[/TABLE]
You can see the movement of Levant Neolithic in this PCA from Lazaridis et al 2016 "Genomic insights into the origin of farming in the ancient Near East" Figure 1 (p.420)