I don’t think this article has been posted before.
The original paper:
https://www.cell.com/cell/fulltext/S0092-8674(19)30967-5
Some of the key findings mentionned in the Smithsonian summary article:
“This finding ties people in South Asia today directly to the Indus Valley Civilization”
“But Steppe pastoralist DNA is absent in the ancient Indus Valley individual, suggesting similarities between these nomadic herders and modern populations arose from migrations after the IVC’s decline”
“suggesting that farming spread through an exchange of ideas rather than a mass migration, or perhaps even arose independently in South Asia”.
The new finding contardicts previous findings such as the ones mentionned in this tread:
The Smithsonian article comments on this contradiction:
The first evidence of agriculture comes from the Fertile Crescent, dating to as early as 9,500 B.C., and many archaeologists have long believed that the practice of growing crops was brought to South Asia from the Middle East by migrants. Earlier DNA studies seemed to bear out this idea, since South Asians today have significant Iranian ancestry.
[…]
If farming did spread from the Fertile Crescent to modern India, it likely spread via the exchange of ideas and knowledge—a cultural transfer rather than a significant migration of western Iranian farmers themselves. Alternatively, farming could have arisen independently in South Asia, as agricultural practices started to sprout up in many places across Eurasia during this time.