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Haplogroup B (mtDNA): Wikis

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Haplogroup B

Migration map4.png

Time of origin 50,000 YBP
Place of origin Far East
Ancestor R11'B
Descendants B4, B5, B7
Defining mutations 8281-8289d[1]

In human mitochondrial genetics, Haplogroup B is a human mitochondrial DNA (mtDNA) haplogroup.

Contents

Origin

Haplogroup B is believed to have arisen in Asia some 50,000 years before present. Its ancestral haplogroup was Haplogroup R.

Its greater variety is in China. It is conspicuous that haplogroup B may have its earliest diversification in southern China and/or Southeast Asia.[2]

Distribution

Haplogroup B is found more often in East Asia[3]. Its subgroup B2 is one of five haplogroups found in the indigenous peoples of the Americas, the others being A, C, D, and X that are only associated with the indigenous Americas.

Since the migration to the Americas by the ancestors of Indigenous Americans is generally believed to have been from Siberia, it is especially surprising that Haplogroup B is the only haplogroup found in Aboriginal Americans which is not found in modern North Siberian populations.[4] However, Haplogroup B has been found among Southern Siberians, such as Tuvans, Altays, and Buryats. This haplogroup is also found in Mongolians, Tibetans, Koreans, and among populations of Japan, China, Vietnam, Malaysia, Taiwan, Indonesia, Madagascar, the Philippines, Melanesia, Micronesia, and Polynesia.[5]

Subclades

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Tree

This phylogenetic tree of haplogroup B subclades is based on the paper by Mannis van Oven and Manfred Kayser Updated comprehensive phylogenetic tree of global human mitochondrial DNA variation[1] and subsequent published research.

  • B
    • B4
      • B4a
        • B4a1
          • B4a1a
            • B4a1a1
              • B4a1a1a
                • B4a1a1a1
              • B4a1a1b
            • B4a1a2
            • B4a1b
              • B4a1b1
                • B4a1b1a
          • B4a1c
            • B4a1c1
              • B4a1c2
              • B4a1c4
            • B4a1c3
              • B4a1c3a
        • B4a2
        • B4a2a
      • B4g
      • B4b'd'e
        • B4b
          • B2
            • B2a
              • B2a1
                • B2a1a
            • B2b
            • B2c
              • B2c1
            • B2d
            • B2e
          • B4b1
            • B4b1a
                • B4b1a1
                  • B4b1a1a
                • B4b1a2
                  • B4b1a2a
            • B4b1b'c
              • B4b1b
              • B4b1c
        • B4d
          • B4d1'2'3
            • B4d1
            • B4d2
            • B4d3
        • B4e
      • B4c
        • B4c1
          • B4c1a'b
            • B4c1a
              • B4c1a1
                • B4c1a1a
              • B4c1a2
            • B4c1b
              • B4c1b1
                • B4c1b1a
              • B4c1b2
          • B4c1c
            • B4c1c1
        • B4c2
          • B4c2a
      • B4f
        • B4f1
    • B5
      • B5a
        • B5a1
          • B5a1a
        • B5a2
          • B5a2a
      • B5b
        • B5b1
          • B5b1a'b
            • B5b1a
            • B5b1b
        • B5b2
          • B5b2a'b
            • B5b2a
            • B5b2b
              • B5b2b1
          • B5b2c
        • B5b3
    • B7

Popular culture

In his popular book The Seven Daughters of Eve, Bryan Sykes named the originator of this mtDNA haplogroup Ina.

See also

Human mitochondrial DNA (mtDNA) haplogroups

  Mitochondrial Eve (L)    
L0 L1 L2 L3   L4 L5 L6
  M N  
CZ D E G Q   A S   R   I W X Y
C Z B F R0   pre-JT P  U
HV JT K
H V J T Former Clusters IWX

References

  1. ^ a b van Oven, Mannis; Manfred Kayser (13 Oct 2008). "Updated comprehensive phylogenetic tree of global human mitochondrial DNA variation". Human Mutation 30 (2): E386–E394. doi:10.1002/humu.20921. PMID 18853457 doi:10.1002/humu.20921. http://www3.interscience.wiley.com/journal/121449735/abstract?CRETRY=1&SRETRY=0. Retrieved 2009-05-20.  |url=http://www3.interscience.wiley.com/journal/121449735/abstract?CRETRY=1|doi_brokendate=2009-07-06 }}
  2. ^ Yong-Gang Yao et al. 2001, Phylogeographic Differentiation of Mitochondrial DNA in Han Chinese Am J Hum Genet. 2002 March; 70(3): 635–651
  3. ^ Haplogroup B.
  4. ^ Fagundes, Nelson J.R.; Ricardo Kanitz, Roberta Eckert, Ana C.S. Valls, Mauricio R. Bogo, Francisco M. Salzano, David Glenn Smith, Wilson A. Silva, Marco A. Zago, Andrea K. Ribeiro-dos-Santos, Sidney E.B. Santos, Maria Luiza Petzl-Erler, and Sandro L.Bonatto (2008). "Mitochondrial Population Genomics Supports a Single Pre-Clovis Origin with a Coastal Route for the Peopling of the Americas" (pdf). American Journal of Human Genetics 82 (3): 583–592. http://www.familytreedna.com/pdf/Fagundes-et-al.pdf. Retrieved 2009-11-19.  
  5. ^ Theodore G Schurr and Douglas C Wallace, "Mitochondrial DNA diversity in Southeast Asian populations," Human Biology, Jun 2002.

External links


Genealogy

Up to date as of February 01, 2010

From Familypedia

In mitochondrial genetics, Haplogroup B is a human mitochondrial DNA (mtDNA) haplogroup.

Haplogroup B is believed to have arisen in Asia some 50,000 years before present. Its ancestral haplogroup was Haplogroup R.

Haplogroup B is found throughout modern Asia[1]. Its subgroup B2 is one of five haplogroups found in the indigenous peoples of the Americas, the others being A, C, D, and X.

Since the migration to the Americas by the ancestors of Native Americans is generally believed to have been from Siberia, it is especially surprising that Haplogroup B is the only haplogroup found in Native Americans which is not found in modern North Siberian populations. However, Haplogroup B has been found among Southern Siberians, such as Tuvans, Altays, and Buryats. This haplogroup is also found in Mongolians, Tibetans, Koreans, Japanese, populations of Central China, Taiwan, Indonesia, Polynesia and Micronesia.

In his popular book The Seven Daughters of Eve, Bryan Sykes named the originator of this mtDNA haplogroup Ina.

References

  1. ^ Haplogroup B.

See also

External links

Human mitochondrial DNA (mtDNA) haplogroups

  most recent common mt-ancestor    
L0   L1  
L2 L3   L4 L5 L6 L7
  M N  
CZ D E G Q   A I O   R   S W X Y
C Z B F pre-HV   pre-JT P  UK
HV JT U K
H V J T
This page uses content from the English language Wikipedia. The original content was at Haplogroup B (mtDNA). The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

This article uses material from the "Haplogroup B (mtDNA)" article on the Genealogy wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

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