We hypothesize that in the late Copper Age and the early Bronze Age (~6.5 kya), carriers of this lineage were settled in the central part of mountainous Dagestan, where the geographies of the main J1-Y3495 clades overlap, and were part of the community that spoke the ancestral pan-East-Caucasian language.
We propose J1-Y3495 haplogroup’s most common lineage originated in an autochthonous ancestral population in central Dagestan and splits up ~6 kya into J1-ZS3114 (Dargins, Laks, Lezgi-speaking populations) and J1-CTS1460 (Avar-Andi-Tsez linguistic group). Based on the archeological finds and DNA data, the analysis of J1-Y3495 phylogeography suggests the growth of the population in the territory of modern-day Dagestan that started in the Bronze Age, its further dispersal, and the microevolution of the diverged population.
There is a cumulative effect: J1-ZS3114 is more common for the speakers of the Dargin, Lak, and Lezgi branches; J1-CTS1460 is typical for the speakers of the Avar-Andi-Dido languages; J1-Y3495(×ZS3114, CTS1460) is widespread among the Dargin speakers and slightly less frequent in the speakers of Lezgi languages. The main impact of the Avar-Andi-Dido J1-CTS1460 lineage is observed for its branch J1-Y6916 (5.8 ± 1.1 kya).
Голубые глаза у ребенка объясняются мутацией в гене OCA2, уменьшающей выработку пигмента меланина. Этот ген связан с единой мутацией, от которой произошли все современные голубоглазые люди.
