What is the most likely scenario for R1b-M269

**dddcc** · 02-24-2018, 09:18 AM

In the last Balkan paper, authors claim that very probably indo_europe folks are from Caucasus or Iran: the so called chg people - in addition to that at the blog eurogenes davidski claims that R1b-M269 guy from eneolithic ukraine shows no steppe ancestry but whg ancestry which is ubiquitous in darkskinned blueyed western europeans
if I am not mistaken the first r1b specimen is of Ma'lta boy located near lake baykal a region considered original land of turks and I have also read studies of russian anthropologue kylosov that assumes a turkic origin of r1b
I am really confused about all this stuff and any help from DNA experts here is very welcomed: please I need to learn the most scientifically proven theory about origin of R1b-M269

From the last balkan paper
No steppe migration to Anatolia via southeast Europe
One version of the steppe hypothesis of Indo-European language origins suggests that Proto-Indo-European languages developed north of the Black and Caspian seas, and that the earliest-known diverging branch, the Anatolian branch, was spread into Asia Minor by the movements of steppe peoples through the Balkan Peninsula during the Copper Age at around 4000 BC47. If this were correct, then one way to detect evidence of the spread of Indo-European languages would be the appearance of large amounts of steppe-related ancestry first in the Balkan Peninsula, and later in Anatolia. However, our data provide no evidence for this scenario. Although we find sporadic steppe-related ancestry in Balkan Copper and Bronze Age individuals, this ancestry is rare until the late Bronze Age. Furthermore, although Bronze Age Anatolian individuals have CHG-related ancestry26, they do not have the EHG-related ancestry characteristic of all steppe populations sampled to date19 or the WHG-related ancestry that is ubiquitous in Neolithic southeastern Europe (Extended Data Figs 2, 3, Supplementary Table 2). We caution, however, that at present we only have data from a small number of Bronze Age Anatolian individuals, none of whom are associated with known Indo-European-speaking populations. An alternative hypothesis is that the homeland of Proto-Indo-European languages was in the Caucasus or in Iran. In this scenario, westward population movement contributed to the dispersal of Anatolian languages, and northward movement and mixture with EHG was responsible for the formation of a ‘Late Proto-Indo European’-speaking population associated with the Yamnaya complex