Denisovan: Difference between revisions
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'''Denisova hominin''' is the name given to a possible new species of [[proto-human]] that was identified through the analysis of DNA, and announced in March 2010. |
'''Denisova hominin''' is the name given to a possible new species of [[Archaic Homo sapiens|proto-human]] that was identified through the analysis of DNA, and announced in March 2010. |
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Denisova hominins are proposed to have lived between 1 million and 40,000 years ago, in areas also inhabited by [[Neanderthal]]s and [[Modern human]]s.<ref name=washingtonpost>{{Citation |url=http://www.washingtonpost.com/wp-dyn/content/article/2010/03/24/AR2010032401926_pf.html |title=Scientists say they've identified new human ancestor |newspaper=[[Washington Post]] |date=March 25, 2010 |first=David |last=Brown }}.</ref><ref name="Pääbo et al.">{{Citation |first=Johannes |last=Krause |first2=Qiaomei |last2=Fu |first3=Jeffrey M. |last3=Good |first4=Bence |last4=Viola |first5=Michael V. |last5=Shunkov |first6=Anatoli P. |last6=Derevianko |lastauthoramp=yes |first7=Svante |last7=Pääbo |year=2010 |title=The complete mitochondrial DNA genome of an unknown hominin from southern Siberia |journal=[[Nature (journal)|Nature]] |volume=Forthcoming |issue= |pages= |doi=10.1038/nature08976 }},</ref> but are the result of an [[Recent African origin of modern humans|out of Africa]] migration, distinct from the migrations associated with Neanderthals and modern humans.<ref name="The Scientist"/> |
Denisova hominins are proposed to have lived between 1 million and 40,000 years ago, in areas also inhabited by [[Neanderthal]]s and [[Modern human]]s.<ref name=washingtonpost>{{Citation |url=http://www.washingtonpost.com/wp-dyn/content/article/2010/03/24/AR2010032401926_pf.html |title=Scientists say they've identified new human ancestor |newspaper=[[Washington Post]] |date=March 25, 2010 |first=David |last=Brown }}.</ref><ref name="Pääbo et al.">{{Citation |first=Johannes |last=Krause |first2=Qiaomei |last2=Fu |first3=Jeffrey M. |last3=Good |first4=Bence |last4=Viola |first5=Michael V. |last5=Shunkov |first6=Anatoli P. |last6=Derevianko |lastauthoramp=yes |first7=Svante |last7=Pääbo |year=2010 |title=The complete mitochondrial DNA genome of an unknown hominin from southern Siberia |journal=[[Nature (journal)|Nature]] |volume=Forthcoming |issue= |pages= |doi=10.1038/nature08976 }},</ref> but are the result of an [[Recent African origin of modern humans|out of Africa]] migration, distinct from the migrations associated with Neanderthals and modern humans.<ref name="The Scientist"/> |
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Revision as of 11:05, 25 March 2010
| Denisova hominin Temporal range: Pleistocene
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Denisova hominin is the name given to a possible new species of proto-human that was identified through the analysis of DNA, and announced in March 2010. Denisova hominins are proposed to have lived between 1 million and 40,000 years ago, in areas also inhabited by Neanderthals and Modern humans.[1][2] but are the result of an out of Africa migration, distinct from the migrations associated with Neanderthals and modern humans.[3]
Discovery
A team of scientists from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, led by Svante Pääbo, sequenced mitochondrial DNA (mtDNA) extracted from the fragment of a bone from a child's little finger found in Denisova Cave in the Altai Mountains of Siberia.[2] Artifacts excavated in the cave at the same level that the bone fragment was found in were carbon dated to around 40,000 BP. Analysis of the mtDNA indicates a common ancestor between Denisova hominin, Neanderthals, and Modern humans was last shared around 1 million years ago.[3] The mitochondrial DNA indicates that Denisova hominin are the result of an out of Africa migration, distinct from the later out of Africa migrations associated with Neanderthals and modern humans, and distinct from the earlier Africa exodus of homo erectus.[3]
Anatomy and lineage
Little is known of the anatomical features of Denisova hominin since the only physical remains discovered thus far are the finger bone from which only mitochondrial genetic material was gathered. Analysis of the nuclear DNA is underway and is expected to clarify whether the child is a pure breed or is a hybrid with neighbouring modern humans or Neanderthals, in which case they are not a distinct species.[1]
See also
- Archaic Homo sapiens
- Homo
- Homo erectus
- Human evolution
- Homo floresiensis
- Recent African origin of modern humans
References
- ^ a b Brown, David (March 25, 2010), "Scientists say they've identified new human ancestor", Washington Post.
- ^ a b Krause, Johannes; Fu, Qiaomei; Good, Jeffrey M.; Viola, Bence; Shunkov, Michael V.; Derevianko, Anatoli P.; Pääbo, Svante (2010), "The complete mitochondrial DNA genome of an unknown hominin from southern Siberia", Nature, Forthcoming, doi:10.1038/nature08976
{{citation}}: Unknown parameter|lastauthoramp=ignored (|name-list-style=suggested) (help), - ^ a b c Katsnelson, Alla (March 24, 2010), "New hominin found via mtDNA", The Scientist.
Further reading
- Rincon, Paul (March 24, 2010), "DNA identifies new ancient human dubbed 'X-woman'", BBC news.
- Wade, Nicholas (March 24, 2010), "Bone May Reveal a New Human Group", New York Times.
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