u/No-Interest6564

Note: I am not a professional in this subject and am just inferring from what I’ve read online

From what I’ve read the majority of r1a subclades in Indic populations descend from r1a-y3 unlike iranic r1a which largely emerges from r1a-z2124, however this can make tracing the movement of this haplogroup from the urals to south asia difficult as we only have 2 r1a-y3 samples before 500bc(both from the Nepluyevsky Barrow Necropolis, 1950-1622 BCE), not only that but y3 hasn’t been confirmed in all known samples of gandhara grave culture either

My question is about the minority r1a z2124 found in south asia, are there any downstream subclades of r1a z2124 found in south asia that are specific to indic populations? are the approximate dates of divergence of these subclades from more iranic specific haplos calculated? are there any ancient samples which have a z2124 subclade which is found mostly in indic populations? what do we know about the subclades of r1a z2124 in ggc?