Post by Διαμονδ on Dec 3, 2017 9:21:09 GMT
Haplogroup NO is a human Y-chromosome DNA haplogroup. NO is derived from Haplogroup K2a1 (M2313), which in turn is derived from Haplogroup K2a (M2308).
Before 2016, it was generally considered that "NO" and "K2a" were identical and constituted a primary branch of Haplogroup K2. However, researchers such as Poznik et al. discovered Y-DNA in ancient remains and living individuals that had some, but not all, of the mutations regarded previously as peculiar to NO, but lacked any of the SNPs identifying other primary clades of K2. Poznik et al. therefore considered that K2a and NO constituted "grandparent" and "grandchild" clades, and proposed that the name Haplogroup K2a1 be assigned to the Y-DNA of individuals who belonged to K2a, but did not belong to NO.
Haplogroup NO is the immediate ancestor of Haplogroup N and Haplogroup O.
Based on the projected origins of K2a in either South East Asia or East Asia, NO* probably originated in East Asia.
Migration of haplogroup N and O
There are two basic assumptions about the place of origin of heredity NO:
Central Asia (East of the Aral sea), the Altai, Northwest China, Mongolia;
Southeast Asia (South China)
The first version is based on the fact that this region lies between the zones of the modern distribution of haplogroups N (Northern Eurasia) and O (East Asia); the second is that in the area found ancient branch N and O.
The reason for the almost complete disappearance of haplogroup NO is unknown. But a similar situation occurred with P, R and Q. Here, the role played by founder effect and genetic drift.
Before 2016, it was generally considered that "NO" and "K2a" were identical and constituted a primary branch of Haplogroup K2. However, researchers such as Poznik et al. discovered Y-DNA in ancient remains and living individuals that had some, but not all, of the mutations regarded previously as peculiar to NO, but lacked any of the SNPs identifying other primary clades of K2. Poznik et al. therefore considered that K2a and NO constituted "grandparent" and "grandchild" clades, and proposed that the name Haplogroup K2a1 be assigned to the Y-DNA of individuals who belonged to K2a, but did not belong to NO.
Haplogroup NO is the immediate ancestor of Haplogroup N and Haplogroup O.
Based on the projected origins of K2a in either South East Asia or East Asia, NO* probably originated in East Asia.
Migration of haplogroup N and O
There are two basic assumptions about the place of origin of heredity NO:
Central Asia (East of the Aral sea), the Altai, Northwest China, Mongolia;
Southeast Asia (South China)
The first version is based on the fact that this region lies between the zones of the modern distribution of haplogroups N (Northern Eurasia) and O (East Asia); the second is that in the area found ancient branch N and O.
The reason for the almost complete disappearance of haplogroup NO is unknown. But a similar situation occurred with P, R and Q. Here, the role played by founder effect and genetic drift.