J2 haplogroup

Explore J haplogroup maps and history here. First you may want to review the concepts of SNP markers and Y-chromosome haplogroups. In terms of age, the first men with the Haplogroup J mutation lived well before j2 haplogroup in haplogroups to its right in the tree.

It is believed to have evolved in Western Asia. Haplogroup J-M is believed to have split from the haplogroup I-M roughly 43, years ago in Western Asia, [1] as both lineages are haplogroup IJ subclades. J-M Transcaucasian origin is defined by the M genetic marker, or the equivalent 12f2. The main current subgroups J-M Armenia highlands origin and J-M Zagros mountains origin , which now comprise between them almost all of the haplogroup's descendant lineages, are both believed to have arisen very early, at least 10, years ago. On the other hand, it would seem to be that different episodes of populace movement had impacted southeast Europe, as well as the role of the Balkans as a long-standing corridor to Europe from the Near East is shown by the phylogenetic unification of Hgs I and J by the basal M mutation. Such a geographic hall [ clarification needed ] is prone to have encountered extra consequent gene streams, including the horticultural settlers.

J2 haplogroup

The date of origin for haplogroup J-M was estimated by Batini et al in as between 19, and 24, years before present BP. E approximately 11, ybp. It is likely that J2 men had settled over most of Anatolia, the South Caucasus and the Zagros mountains by the end of the Last Glaciation 12, years ago. Zalloua and Wells and al-Zaheri claimed to have uncovered the earliest known migration of J2, expanded possibly from Anatolia and the Caucasus. Per research by Di Giacomo , J-M haplogroup spread into Southern Europe from either the Levant or Anatolia , likely parallel to the development of agriculture. Semino et al. Di Giacomo , postulating its initial spread with Neolithic farmers from the Near East. Like Di Giacomo, the Bronze Age southern Balkans was suggested by Semino to have been an important vector of spread. The highest reported frequency of J-M ever was Haplogroup J2 is found with low frequencies in North Africa.

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Author: Maciamo Hay. Last update April famous people. Haplogroup J2 is thought to have appeared somewhere in the Middle East towards the end of the last glaciation, between 15, and 22, years ago. This confirms that haplogroup J2 was already found around the Caucasus and the southern Caspian region during the Mesolithic period. The first appearance of J2 during the Neolithic came in the form of a 10, year-old J2b sample from Tepe Abdul Hosein in north-western Iran in what was then the Pre-Pottery Neolithic Broushaki et al. Notwithstanding its strong presence in West Asia today, haplogroup J2 does not seem to have been one of the principal lineages associated with the rise and diffusion of cereal farming from the Fertile Crescent and Anatolia to Europe.

Author: Maciamo Hay. Last update July Haplogroup J is relatively evenly distributed across all Europe. The only population in which it is absent are the Saami from Lapland. The mutation defining haplogroup J is thought to have taken place some 45, years ago, probably in West Asia. Between the Last Glacial Maximum c. Note that the current nomenclature does not include any subclade called J1a anymore the previous J1a was renamed J1b3a.

J2 haplogroup

The date of origin for haplogroup J-M was estimated by Batini et al in as between 19, and 24, years before present BP. E approximately 11, ybp. It is likely that J2 men had settled over most of Anatolia, the South Caucasus and the Zagros mountains by the end of the Last Glaciation 12, years ago. Zalloua and Wells and al-Zaheri claimed to have uncovered the earliest known migration of J2, expanded possibly from Anatolia and the Caucasus.

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Comparison of Y-chromosomal lineage dating using either evolutionary or genealogical Y-STR mutation rates. TMRCA estimates for this haplogroup range from kya. The Genetic Atlas. Download as PDF Printable version. To address the above, we investigated the presence of different subclades of HG J2-M in diverse set of Indian populations and their affinities with rest of the world. It is quite possible that these empires aided the dissemination of Haplogroup J. Submit a Comment Cancel reply Your email address will not be published. Although J2b2 itself was formed 14, years ago, almost all European J2b2 members belong to the L branch and share a common patrilineal ancestor who lived 6, years ago. Phylogeny 4. Later, a group of citizen scientists with an interest in population genetics and genetic genealogy formed a working group to create an amateur tree aiming at being above all timely.

It is believed to have evolved in Western Asia.

Hammer, M. Mutation rates at Y chromosome specific microsatellites. The population of the sub-continent shows an outstanding biological and cultural variation, which has been shaped by geographical, ecological, social and linguistic factors Chaubey, G. Semino et al. Retrieved Accepted : 08 October Reese on April 13, at pm. Soodyall, H PMC Possehl, G.