Haplogroup N1a (mtDNA)


Haplogroup N1a (mtDNA)

In human genetics Haplogroup N1a is a mitochondrial DNA (mtDNA) haplogroup.

N1a is a rare haplogroup as it currently appears in only .18%-.2% of regional populations. It is widely distributed throughout Eurasia and Northern Africa and is divided into the European, Central Asian, and African/South Asian branches based on specific genetic markers. Exact origins and migration patterns of this haplogroup are still unknown and a subject of some debate.

Neolithic farmers

N1a became particularly prominent when Wolfgang Haak et al. studies on 7500 year old skeletons in Central Europe revealed that 25% of the Neolithic European population might have belonged to the N1a haplogroup. The skeletons were found to be members of the Linear Pottery Culture which is credited with being the first farming culture in Europe. [http://www.sciencemag.org/cgi/content/abstract/310/5750/1016]

The study was a major development in the debate on the origin of European populations. [http://www.sciencemag.org/cgi/content/abstract/sci;312/5782/1875a]

The answer to the debate was: "The discovery of mitochondrial type N1a in Central European Neolithic skeletons at a high frequency enabled us to answer the question of whether the modern population is maternally descended from the early farmers instead of addressing the traditional question of the origin of early European farmers"

Generally two competing scenarios exist for event around that time:
# Renfrew NDT - Anatolian hypothesis
# Alinei Paleolithic Continuity Theory. Both conceptions were formed before the Haak discovery. The high frequency old paleolithic mtDNA are more understandable in light of the Paleolithic Continuity Theory. The N haplogroup is 80-60 ky old.

"Our finding lends weight to a proposed Paleolithic ancestry for modern Europeans" [Ancient DNA from the First European Farmers in 7500-Year-Old Neolithic Sites; Science 11 November 2005:Vol. 310. no. 5750, pp. 1016 - 1018DOI: 10.1126/science.1118725Wolfgang Haak, Peter Forster, Barbara Bramanti, Shuichi Matsumura, Guido Brandt, Marc Tänzer, Richard Villems, Colin Renfrew, Detlef Gronenborn, Kurt Werner Alt, Joachim Burger]

References

*Haak, Wolfgang, et al. "Ancient DNA from the First European Farmers in 7500-Year-Old Neolithic Sites" Science, vol. 310, pg. 1016 (2005)
*Balter, Michael "Ancient DNA Yields Clues to the Puzzle of European Origins" Science, vol. 310, pg. 964 (2005)

See also

*Human mitochondrial genetics
*Haplogroup I (mtDNA)


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Haplogroup N (mtDNA) — Haplogroup N Possible time of origin Approx. 71,000 YBP[1][1] Possible place of …   Wikipedia

  • Linear Pottery culture — LBK redirects here. For other uses, see LBK (disambiguation). Not to be confused with Linear B. Map of European Neolithic at the apogee of Danubian expansion, c. 4500–4000 BC …   Wikipedia

  • Haplogrupo N (ADNmt) — Zonas de predominio del haplogrupo N en amarillo y de su clado más importante R en verde. El haplogrupo N o macrohaplogrupo N* es un haplogrupo mitocondrial humano cuyos descendientes están esparcidos por todos los continentes. Cuenta entre sus… …   Wikipedia Español

  • Genetic history of Europe — European populations have a complicated demographic and genetic history, including many layers of successive migrations between different time periods, from the first appearance of Homo sapiens in the Upper Paleolithic to contemporary immigration …   Wikipedia

  • Гаплогруппа T (мтДНК) — Не следует путать с Гаплогруппа T (Y ДНК). Гаплогруппа T Тип мтДНК Время появления 10 12 тыс. лет назад Место появления Месопотамия/Плодородный Полумесяц Предковая группа Гаплогруппа JT Субклады T1, T2 Мутации маркеры 709, 1888, 4917, 8697, 10463 …   Википедия

  • Гаплогруппа M (мтДНК) — Не следует путать с Гаплогруппа M (Y ДНК). Гаплогруппа M Тип мтДНК Время появления 60 тыс. лет назад Место появления Азия[1][2] или Африка[3] Предковая группа Гаплогруппа L3 Субк …   Википедия

  • Pashtun people — Pashtuns پښتانه Paṣ̌tun …   Wikipedia

  • Гаплогруппа H (мтДНК) — Не следует путать с Гаплогруппа H (Y ДНК). Гаплогруппа H Тип мтДНК Время появления 25 30 тыс. лет назад Место появления юго западная Азия/ближний Восток[1] Предковая группа HV[1] Субклады H1, H2, H3, H4, H5, H6, H7, H8, H9, H1 …   Википедия

  • Гаплогруппа H1 (мтДНК) — Гаплогруппа H1 Тип мтДНК Время появления 8,4 14,8 тыс. лет назад[1] Место появления Иберия или южная Франция Предковая группа H Субклады H1a, H1b, H1f, H1g, H1k, H1q, H1c, H1e, H1h, H1i, H1j, H1m, H1n, H1o, H1p, H1r, H1s, H1t, H1u, H1v, H1w, H1x… …   Википедия

  • Neolithic Europe — Map showing the Neolithic expansions from the 7th to the 5th millennium BC, including the Cardium Culture in blue …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.