Haplogroup K | |
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Possible time of origin | 55,000-50,000 |
Possible place of origin | West Asia (possibly Iran) or Central Asia [1] [2] [3] |
Ancestor | IJK |
Descendants | haplogroup K2, [4] and LT |
Defining mutations | M9, P128/PF5504, P131/PF5493, P132/PF5480 |
Haplogroup K or K-M9 is a genetic lineage within human Y-chromosome DNA haplogroup. A sublineage of haplogroup IJK, K-M9, and its descendant clades represent a geographically widespread and diverse haplogroup. The lineages have long been found among males on every continent except Antarctica.
The direct descendants of Haplogroup K1 (L298 = P326, also known as LT) and K-M9 are Haplogroup K2 (formerly KxLT; K-M526). [4] [5]
Y-DNA haplogroup K-M9 is an old lineage that arose approximately 47,000-50,000 years ago. [6] According to geneticist Spencer Wells, haplogroup K or the Eurasian clan, originated in the Middle East (perhaps Iran) or Central Asia. [1] [2] [3]
Basal K* is exceptionally rare and under-researched; while it has been reported at very low frequencies on many continents it is not always clear if the examples concerned have been screened for subclades. [4] [7] Confirmed examples of K-M9* now appear to be most common amongst some populations in Island South East Asia and Melanesia. [8] [9] [10]
Primary descendants of haplogroup LT are L (M20), also known as K1a, and T (M184), also known as K1b. [4] [5]
The descendants of haplogroup K2 include:
LT (L298; a.k.a. K1) has never been found in basal form (LT*). Subclades are widely distributed at low concentrations. Haplogroup L is found at its highest frequency in India, Pakistan and among the Baloch of Afghanistan. T is most common among: Fulanis, Toubou, Tuareg, Somaliland, Egyptians, some Middle East, [33] the Aegean Islands and among Kurru, Bauris and Lodha in India. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
K2 |
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In human genetics, Haplogroup J-M172 or J2 is a Y-chromosome haplogroup which is a subclade (branch) of haplogroup J-M304. Haplogroup J-M172 is common in modern populations in Western Asia, Central Asia, South Asia, Southern Europe, Northwestern Iran and North Africa. It is thought that J-M172 may have originated in the Caucasus, Anatolia and/or Western Iran.
Haplogroup J-M304, also known as J, is a human Y-chromosome DNA haplogroup. It is believed to have evolved in Western Asia. The clade spread from there during the Neolithic, primarily into North Africa, the Horn of Africa, the Socotra Archipelago, the Caucasus, Europe, Anatolia, Central Asia, South Asia, and Southeast Asia.
Haplogroup E-M96 is a human Y-chromosome DNA haplogroup. It is one of the two main branches of the older and ancestral haplogroup DE, the other main branch being haplogroup D. The E-M96 clade is divided into two main subclades: the more common E-P147, and the less common E-M75.
Haplogroup E-V38, also known as E1b1a-V38, is a major human Y-chromosome DNA haplogroup. E-V38 is primarily distributed in Africa. E-V38 has two basal branches, E-M329 and E-M2. E-M329 is a subclade mostly found in East Africa. E-M2 is the predominant subclade in West Africa, Central Africa, Southern Africa, and the region of African Great Lakes; it also occurs at moderate frequencies in North Africa, West Asia, and Southern Europe.
Haplogroup L-M20 is a human Y-DNA haplogroup, which is defined by SNPs M11, M20, M61 and M185. As a secondary descendant of haplogroup K and a primary branch of haplogroup LT, haplogroup L currently has the alternative phylogenetic name of K1a, and is a sibling of haplogroup T.
Haplogroup M, also known as M-P256 and Haplogroup K2b1b is a Y-chromosome DNA haplogroup. M-P256 is a descendant haplogroup of Haplogroup K2b1, and is believed to have first appeared between 32,000 and 47,000 years ago.
Haplogroup P also known as P-F5850 or K2b2 is a Y-chromosome DNA haplogroup in human genetics. P-F5850 is a branch of K2b, which is a branch of Haplogroup K2 (K-M526).
In human genetics, a human Y-chromosome DNA haplogroup is a haplogroup defined by mutations in the non-recombining portions of DNA from the male-specific Y chromosome. Many people within a haplogroup share similar numbers of short tandem repeats (STRs) and types of mutations called single-nucleotide polymorphisms (SNPs).
Haplogroup R, or R-M207, is a Y-chromosome DNA haplogroup. It is both numerous and widespread amongst modern populations.
In human genetics, Haplogroup O-M268, also known as O1b, is a Y-chromosome DNA haplogroup. Haplogroup O-M268 is a primary subclade of haplogroup O-F265, itself a primary descendant branch of Haplogroup O-M175.
Haplogroup S-M230, also known as S1a1b, is a Y-chromosome DNA haplogroup. It is by far the most numerically significant subclade of Haplogroup S1a.
Haplogroup R1b (R-M343), previously known as Hg1 and Eu18, is a human Y-chromosome haplogroup.
Haplogroup E-P147 is a human Y-chromosome DNA haplogroup. Haplogroup E-P147, along with the less common haplogroup E-M75, is one of the two main branches of the older haplogroup E-M96. The E-P147 clade is commonly observed throughout Africa and is divided into two subclades: the less common, haplogroup E-M132, and the more common, haplogroup E-P177.
Haplogroup E-M132, formerly known as E-M33 (E1a), is a human Y-chromosome DNA haplogroup. Along with E-P177, it is one of the two main branches of the older E-P147 paternal clade. E-M132 is divided into two primary sub-branches, E-M44 and E-Z958, with many descendant subclades.
Haplogroup E-P177 is a human Y-chromosome DNA haplogroup. E-P177 has two known subclades, which are haplogroup E-P2 and haplogroup E-P75.
Haplogroup E-M75 is a human Y-chromosome DNA haplogroup. Along with haplogroup E-P147, it is one of the two main branches of the older haplogroup E-M96.
Haplogroup E-P2, also known as E1b1, is a human Y-chromosome DNA haplogroup. E-P2 has two basal branches, E-V38 and E-M215. E-P2 had an ancient presence in East Africa and the Levant; presently, it is primarily distributed in Africa where it may have originated, and occurs at lower frequencies in the Middle East and Europe.
Haplogroup K2b (P331), also known as MPS is a human y-chromosome haplogroup that is thought to be less than 3,000 years younger than K, and less than 10,000 years younger than F, meaning it probably is around 50,000 years old, according to the age estimates of Tatiana Karafet et al. 2014.
Haplogroup P1, also known as P-M45 and K2b2a, is a Y-chromosome DNA haplogroup in human genetics. Defined by the SNPs M45 and PF5962, P1 is a primary branch (subclade) of P.
Haplogroup E-M329, also known as E1b1a2, is a human Y-chromosome DNA haplogroup. E-M329 is mostly found in East Africa.
Given the widespread distribution of K, it probably arose somewhere in the Middle East or Central Asia, perhaps in the region of Iran or Pakistan.