关于Q2a1

这是汉族中非常少见的类型，可能起源于叶尼塞河流域

https://www.yfull.com/tree/Q-YP4503/
 
Q2a1c1b1a ~ это ветвь с положительными SNPs F7088/FGC4649/YP4507, FGC4604/Z14435, FGC4632/YP4502, FGC4640/YP4503, FGC4642/YP4504, FGC4643/Y2786, FGC4645/YP4505, FGC4648/YP4506, FGC4650/YP4084, FGC4652/Y2787, FGC4653/YP4509, FGC4660/Y2789/YP4510, FGC4664, FGC4664/YP4512, FGC7958/S3470. 

На YFull мы видим в этой ветви иранца и жителя Абхазии. 
Полагаю, что Енисей здесь ни при чем. 

By the way, https://www.yfull.com/tree/Q-L301/
YF12424 is Uyghur from Xinjiang. 
YF06482 is Tajik from Pamir. 
But they are far from each other and from the two previously mentioned samples. At least 4.5 thousand years ago, their common ancestor lived.
 

Could you tell us - what is known about your origin?

I know nothing about it. Could you tell me any clue?