Elamites
Amjadi et al. 2025 paper published an ancient DNA from Chalcolithic period South Zagros dated at 4600BC. The sample was from Gol Afshan tepe site related to Bakun period which immediately precedes the so called Lapui period (4100-3500BC) associated to Proto Elamites. Assuming that there wasn't any dramatic change between Bakun and Lapui periods we can conjecture that Proto-Elamite language was derived from a population having a large amount of Zagros/Iran Neolithic. In line with autosomes the sample had the R2 Y DNA. A haplogroup popular in ancient Zagros farmers which is found today mostly in South Asia and in some parts of West Asia. In Sasun Armenians for example. (see the second map)
Elamite civilization flourished in south west of Iranian plateau. Elamite language was widely used in Achaemenid empire as an administrative language. Persians were calling the Elam region as Hujiya>Khuzi from which the modern Khuzestan province name is derived. Elamite was apparently still spoken in medieval period given that Arabs report an incomprehensible Khuzi language different from Persian in that region. Armenian word khuzhan meaning hooligan, wild person is derived from that region name.
If further research confirms the link of Elamite with Zagros/Iran neolithic farmers few possible ramifications emerge from that.
+ Sumerian is unrelated to Elamite so we can assume that Sumerian is related to another population known as Central farmers and not to Zagros farmers.
+ North Iran had a different genetic history. A contemporary Chalcolithic DNA from Urmia basin ( Hajji Firuz Chl) is strongly shifted to west and plot close to Central farmers. It's migration to east diluted the Zagros Neolithic ancestry in North Iran where other ethnic groups are known to inhabit in Bronze Age. The most prominent of them were the Kassites. Kassite has no known connection with Elamite. While a connection of Kassites and Hurrian has been proposed.
+ A theory connecting Elamite and Dravidian in South Asia was proposed even though not widely accepted. The connection of Elamite to Zagros/Iran Neolithic farmers can add a support to this theory, even though Dravidians have also large amount of South Asian specific ancestry related to Andaman island HG.
+ Widespread use of Elamite in multiethnic Persian empire administration can give a hint about the real status of Urartian language in Biainili kingdom. We now know that it was not solely Urartian kingdom and other ethnic groups, the Armenian being the most prominent were part of Biainili kingdom also. Elamite inscriptions were found from Achaemenid era Armavir city in Armenia. This show once more that a presence of written texts from a certain region do not necessarily mean a widespread presence of it's speakers in that region.

