J2 haplogroup

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, j2 haplogroup, or the equivalent 12f2, j2 haplogroup. The main current subgroups J-M Armenia highlands origin and J-M Zagros mountains originwhich now comprise between j2 haplogroup almost all of the haplogroup's descendant lineages, are both believed to have arisen very early, at least 10, years ago.

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.

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 anybody in haplogroups to its right in the tree. But the origination of Haplogroup J is not nearly as ancient as its predecessors, Haplogroups H back through A. When this mutation was new, it first laid down firm footing in Western Asia and spread from there, giving rise to high concentrations of descendants in the Arabian Peninsula. It further expanded from there primarily west along the north and south shores of the Mediterranean, and also modestly east into Asia. Early in this expansion process, Haplogroup J developed 2 subgroups, J1 and J2. J1 is defined by the mutation J-M and the subhaplogroup is often referred to by that name. The mutation that gave rise to J2 is called J-M Although members of both haplogroups spread along similar migration routes and continue to co-exist today, they descend from subbranches that split anciently.

Reconstructing Indian population history. Later, j2 haplogroup, a group of citizen scientists with an interest j2 haplogroup population genetics and genetic genealogy formed a working group to create an amateur tree aiming at being above all timely. Tthe diffusion of the J2 subclade into Europe may have been by mediated by the Mediterranean Sea.

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. The global distribution of J2-M sub-haplogroups has been associated with Neolithic demic diffusion. We investigated the Neolithic contribution of demic dispersal from West to Indian paternal lineages, which majorly consists of haplogroups of Late Pleistocene ancestry.

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. The region between them, although has a lower frequency, nevertheless demonstrates high genetic diversity. Studies associate this haplogroup with the spread of farming from the Fertile Crescent to Europe, the spread of mobile pastoralism in the desert regions of the Arabian Peninsula, the history of the Jews, and the spread of Islam. Here, we study past human male demography in West Asia with high-coverage whole Y chromosome sequences and genotyped samples of haplogroup J1-M Most probably, the spread of Afro-Asiatic languages, the spread of mobile pastoralism in the arid zones, or both of these events together explain the distribution of haplogroup J1-M we see today in the southern regions of West Asia.

J2 haplogroup

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. It is likely that J2 men had settled over most of Anatolia, the South Caucasus and Iran by the end of the Last Glaciation 12, years ago. Mathieson et al. Lazaridis et al.

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Iran: tricontinental nexus for Y-chromosome driven migration. Human Y-chromosome DNA haplogroup. P Currently, no information is available for the distribution and frequency of this haplogroup J subclade. The highest reported frequency of J-M ever was Sengupta [18]. Main article: Conversion table for Y chromosome haplogroups. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. Alternatively, the Mediterranean Sea could have been used for the spread of this subclade. J2-M has been observed in Basu, A. Archived from the original PDF on 27 December

Dear visitor: J2-M Haplogroup Research is done by volunteer citizen scientists and admins. Please be patient when you encounter unfinished and outdated areas. Most common major subgroups:J2a-L26

From the Balkan Peninsula, there is a drop in abundance moving into and beyond the Carpathian Mountain countries of Ukraine, Romania, and Hungary. Wang, C. Presence of M68 was also reported in few samples of Indian origin in a study from Southeast Asia The Levant versus the Horn of Africa: evidence for bidirectional corridors of human migrations. Studies support the introduction of this subclade here from Anatolia, with less contribution from the East in the direction of Pakistan. Gene , 59—67 Cadenas, A. Equal weights were given to each locus. Sanchez, J. The size of the circle is proportional to the numbers of the samples. Ingush We discarded first 50 million MCMC iterations as burn-ins and sampled 1 in every cycle for estimation. The last major update was in Karafet Previous studies have established that J2a-M and J2b-M represent the Y-chromosomal component associated with demic diffusion of Neolithic farmers in North Africa and Eurasia from Mesopotamia Iraq and Syria 14 , 15 , Through a founding effect, J2b2-L lineages might have considerably increased their original frequency after reaching Illyria.