Luckily they did model it in a note:
But yeah this Aknashen population seems fascinating.
Here is a qpAdm run for the Aknashen population:
right = c('Congo_Mbuti.DG', 'Anatolia_Boncuklu_N.SG', 'Iran_Wezmeh_N.SG', 'Satsurblia.SG',
'Morocc
UB002_Epipaleolithic.SG','Italy_GrottaContinenza_HG.SG','RUS_Arkhangelsk_HG.SG','Botai.SG',
'Andaman 100BP.SG', 'RUS Primorsky DevilsCave N.SG', 'Peru RioUncallane 1800BP.SG')
allsnps=TRUE
Armenia_Aknashen_N
Anatolia_TepecikCiftlik_N.SG 0.330029 0.119975 2.75080
Iran_ HaijiFiruz CA 0.384564 0.161508 2.38108
Kotias.SG 0.285407 0.0660966 4.31803
Tail: 0.64
Armenia_Aknashen_N: Anatolian_N 33%+Iran_C 38%+ CHG(Kotias) 28%.
Now let's take a look at Progress 2 (Steppe Eneolithic):
RUS_Stavropol_Progress_Eneolithic
Caucasus_Eneolithic 0.453441 0.0153266 29.5852
Tailkistan Tutkaul N 0.248771 0.0220447 11.2848
RUS_Tatarstan_Murzihinskiy_Volosovo 0.2977880.022830613.0433
Tail: 0.15
That's pretty much the same as in the paper.