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Printable Handouts
Navigable Slide Index
- Introduction
- Outline
- Types of genetic markers
- Oceania – divisions past and present
- Linguistic diversity
- Two migrations
- How many dispersals of humans from Africa?
- Multiple dispersals
- Or one dispersal?
- MtDNA evidence for the southern route
- Testing dispersal hypotheses
- New Guinea colonized by a separate migration?
- Neanderthal admixture results
- Single out-of-Africa, separate migrations to Asia
- Was Australia isolated after initial colonization?
- Genetic evidence: Y-chromosome links with India
- Holocene gene flow from India to Australia
- Principle components analysis
- ADMIXTURE analysis
- Four-population test (1)
- Four-population test (2)
- Four-population test results
- TREEMIX (tree with admixture)
- Other genome-wide data?
- Weak South Asian signal in Aboriginals
- Conclusions
- When did this gene flow occur?
- Gene flow date from India to Australia: 4,200 years
- Mid-Holocene transition in Australia
Topics Covered
- Types of genetic markers
- Oceania: divisions past and present
- How many dispersals of modern humans from Africa
- Genetic evidence: links with India
Talk Citation
Stoneking, M. (2015, April 21). The genetic history of Australia, Oceania, and Southeast Asia 1 [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved December 3, 2024, from https://doi.org/10.69645/TAMX9346.Export Citation (RIS)
Publication History
Financial Disclosures
- Prof. Mark Stoneking has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.
The genetic history of Australia, Oceania, and Southeast Asia 1
Published on April 21, 2015
31 min
Other Talks in the Series: Human Population Genetics II
Transcript
Please wait while the transcript is being prepared...
0:00
My name is Mark Stoneking.
I'm at the Max Planck Institute
for Evolutionary Anthropology
in Leipzig, Germany.
In the presentation,
I will be discussing
the genetic history of Australia,
Oceania, and Southeast Asia.
0:14
A brief outline of the presentation
is as follows.
I will first present a brief
introduction to the region
followed by discussion
of particular topics
that are of interest,
since the region and its history
is too broad to cover everything
in detail.
So these topics will include
single versus multiple waves
of dispersal,
referring to the initial
colonization of the region,
genetic evidence for contact
between Australia and India
after initial colonization
of Australia,
and inferences from genetics about
the impact of the Austronesian
expansion.
0:49
A brief mention of the different
types of genetic markers
that I will be referring to.
These include mitochondrial DNA,
or mtDNA.
This is maternally inherited,
so you get all of
your mitochondrial DNA
from your mother
and none from your father,
and therefore mitochondrial DNA
provides insights
into maternal history.
Another type of genetic marker
I will refer to is
the Y chromosome.
The Y chromosome is inherited
from fathers to sons,
and therefore provides insights
into the paternal history
of human populations.
And finally, I will also
make mention of genome-wide
data,
either sequence data
or single nucleotide polymorphism,
so-called SNP data.
Genome-wide data is particularly
useful for gaining insights
into admixture events
as well as more detailed insights
into the demographic history
of human populations.