Haplogroup R1a (R-M420), is a human Y-chromosome DNA haplogroup which is distributed in a large region in Eurasia, extending from Scandinavia and Central Europe to Central Asia, southern Siberia and South Asia. [3][2]

Haplogroup R1a is one of the major classifications (called clades) of Y-chromosome types found in human male lines. It is widespread all across Eurasia. Many sample studies therefore carry information on the incidence of R1a and/or its subclassifications, in particular the dominant branching line represented by the haplogroups R1a1 and R1a1a.

History and description of Haplogroup R1a (Y-chromosomal DNA) and its subclades. Haplogroup R1a is the dominant paternal lineage in Northeast Europe and southern Central Asia. It was diffused around Eurasia by the Indo-Aryans and Balto-Slavic people.

R1a被认为是北部和东部的原始印欧语族群中的主导单倍群，并分化为印度伊朗、色雷斯、波罗的海和斯拉夫各分支。 原始印欧人起源于公元前3,300-2,500年的颜那亚文化，他们的剧烈扩张可能得益于更早的采用青铜武器以及在欧亚草原上对马的驯化（约公元前4,000-3,500年）。 南部草原文化被认为主要是R1b (M269和M73)主导，而北部森林草原文化则是R1a主导。 森林草原人群的初次扩张发生在 绳纹器文化 时期（参考下面的日耳曼分支），Catacomb文化时期 (公元 …

单倍群r-m420 ，isogg名稱為单倍群r1a，是一種人类y染色体dna单倍型类群，與單倍群r1b共同源與單倍群r1，歐亞大陸主要分佈，北起斯堪的纳维亚，南至中欧，東至中亚、西伯利亚南部和南亚。

The R1a/OIT association was just one of many resources that the Hindutva has used to support the cultural and historical origin of modern India in the Indus Valley Civilization, to simplify the religious, ethnic, and linguistic diversity of India.

2009年11月4日 · One notable exception to this general pattern is the young haplogroup R1a that exhibits post-Glacial coalescent times and relates the paternal ancestry of more than 10% of men in a wide...

Y-DNA haplogroup R1a. This haplogroup originated around 25000 BC to 22000 BC in the populations of Eastern European Hunter-Gatherers connected genetically to Ancient North Eurasians. The earliest subclades R1a-Z645 and R1a …

2022年10月14日 · I explore the ancient and modern distribution of R1a subclades around the world, and explain how they relate to the Indian R1a subclades.

R1a, like its sister branch R1b, may have had its origins in Western Asia (Near/Middle East). It is well represented in Scandinavia and Central and Eastern Europe. To a lesser extent, it shows up in Western Europe. The major branch of R1a that shows up among Collinses is the branch formerly referred to as R-M512, but now is referenced by R-M198.