staying on auDNA, I 'll try to precise my uncertain thoughts:
the today ANE found in Anatolia-N-E-Sth-Caucasus, SC Asia could have been taken from more northern Steppes around Bronze Age, whatever the mode (without speak of the consequences upon later nomad populations after change in language and culture, as Turcs and others): pacific gradual osmosis or new rulers ? (depends on prejudices or theories); I know comparing poolings of ancient DNA to other poolings in modern population, and with different depth of "definition", is full of traps; but I believe the "gedrosia" of MA1 by instance is an ANE bearer group of genes which reached later the CS-Asia, meating there the genuine 'gedrosia', partly ANI bearer in fact (an 'harappa'like population but almost without the western 'caucasus' at these times in the source population);
'west-asian' is born by admixture of 'caucasus* and 'total gedrosia'**
*:'caucasus' = i see as a kind of "northest-Near-East': Zagros? -
**: 'total gedrosia': a bit of "northern gedrosia ANE bearer" and a lot of "genuine southern gedrosia" ANI rich enough? -
'teal' could combine the 2 kinds of 'gedrosia' with more ANE and less ANI, and be the result of some contacts between partly Harappa populations with more Steppic ones;
Some surveys about Caucasus uses a 'Indus-Harappa' pooling of their own and "detected" it at non negictible % among modern Caucasus populations and modern Armenians and not only among modern Iranians.
East the Caspian, in BMAC, some interactions were found in the piemonts between sedented populations and steppic nomads, where North Mesopotamia but also Harappa Culture influences were visible; I know artefacts are not genes but it 's a first step;
by the way, the Harappa population was very high, 1m76 statured, even if less robust than the mean of Steppic people (HGs influence?) and showed the famous 'irano(indo)-afghan' complex of traits - whatever a type or a combination - which can be detected at some level among 'corded' people and steppic nomads;
&: stature is in the same time result of genetic heritage and environment-way of life, and the politic-social organization can select genes (polygamy, males challenging, warlike society...unstabel, but we cannot discard immediatly some possible links.
Concerning Haplos, I think Y-R1 (a+b) of Steppes were rich of ANE at these times, and more in detail Y-R1b were more southernly centered and had more of the northern 'gedrosia' part than Y-R1a had as a whole; the 'gedrosia' in Corded could have been taken from reviously rich in R1b population... it could explain the low 'gdrosia' among balts and Slavs of today???
I did not wait for R1b in Western Anatolia at Neolithic time; I don't know the detailed genealogic tree of Y-I, but I* separated from J* in the surroundings, so I'm not so astonished to see a peculiar kind of y-I there, well apart from the other Y-I (I1/I2 other)... what amzed me is the relatively low level of Y-G2: I was waiting more...