Asymmetric male and female genetic histories among Native Americans from Eastern North America.

@article{Bolnick2006AsymmetricMA,
  title={Asymmetric male and female genetic histories among Native Americans from Eastern North America.},
  author={Deborah Bolnick and Daniel I. Bolnick and David George Smith},
  journal={Molecular biology and evolution},
  year={2006},
  volume={23 11},
  pages={
          2161-74
        }
}
Previous studies have investigated the human population history of eastern North America by examining mitochondrial DNA (mtDNA) variation among Native Americans, but these studies could only reconstruct maternal population history. [...] Key Method To evaluate similarities and differences in the maternal and paternal population histories of this region, we obtained DNA samples from 605 individuals, representing 16 indigenous populations.Expand
Genetic structure and sex-biased gene flow in the history of southern African populations
TLDR
The Bantu expansion had a notable genetic impact in southern Africa, and it is confirmed that in this region it was probably a rapid, male-dominated expansion, and a significant increase in the intensity of sex-biased gene flow from north to south is found. Expand
Genetic structure and sex‐biased gene flow in the history of southern African populations
TLDR
The study shows that the population history of southern Africa has been complex, with different immigrating groups mixing to different degrees with the autochthonous populations, and a significant increase in the intensity of the sex‐biased gene flow from north to south may reflect changes in the social dynamics between Khoisan and Bantu groups over time. Expand
X-chromosome lineages and the settlement of the Americas.
TLDR
Although genetic drift appears to have played a greater role in the genetic differentiation of Native Americans than in the latitudinally distributed Eurasians, a signal of a differentiated ancestry of southern and northern populations that cannot be simply explained by the serial southward dilution of genetic diversity is observed. Expand
Distribution of Y chromosomes among native North Americans: a study of Athapaskan population history.
TLDR
The results suggest that European admixture has significantly altered the distribution of Y chromosomes in North America and that a small number of proto-Apachean migrants from the Subarctic founded the Southwest Athapaskan populations. Expand
Elevated male European and female African contributions to the genomes of African American individuals
TLDR
There is a threefold higher European male contribution compared with European females to the genomes of African American individuals meaning that admixture-based gene discovery will have the most power for the autosomes and will be more limited for X chromosome analysis. Expand
Population Genetic Structure of Traditional Populations in the Peruvian Central Andes and Implications for South American Population History
TLDR
The results suggest that Peruvian Central Andean population structure cannot be parsimoniously explained as the sole outcome of combined Inca and Spanish policies on the region's population demography: highland populations differed from coastal and lowland populations in mtDNA genetic structure only; highland groups also showed strong evidence of female-biased gene flow and/or effective sizes relative to other Peruvian ecozones. Expand
Using ancient mtDNA to reconstruct the population history of northeastern North America.
TLDR
Haplotype patterns suggest that some ancestors of present day Native Americans in northeastern North America have been in that region for at least 3,000 years but have experienced extensive gene flow throughout time, resulting, at least in part, from a demic expansion of ancestors of modern Algonquian-speaking people. Expand
Sex-Specific Genetic Structure and Social Organization in Central Asia: Insights from a Multi-Locus Study
TLDR
It is shown that in patrilineal herder groups of Central Asia, in contrast to bilineal agriculturalists, the effective number of women is higher than that of men, and this study suggests that differences in sex-specific migration rates may not be the only cause of contrasting male and female differentiation in humans, and that Differences in effective numbers do matter. Expand
Genetic Structure of First Nation Communities in the Pacific Northwest
TLDR
These findings demonstrate a consensus with previous PNW population studies examining the relationships of genome-wide variation, mitochondrial haplogroup frequencies, and skeletal morphology with geography and language with present genetic diversity among the regional PNW Native American populations. Expand
Ancestral genetic legacy of the extant population of Argentina as predicted by autosomal and X-chromosomal DIPs.
TLDR
This work shows the ability of the tested DIP panels to infer ancestry and confirm mating bias, and the observed differences between the estimated continental genetic contribution proportions based on autosomal DIPs and X-DIPs reflect the effects of autosome andX-chromosome transmission behaviour and their different recombination patterns. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 95 REFERENCES
The genetic prehistory of Eastern North America : evidence from ancient and modern DNA
In this study, I examine genetic variation among extant and prehistoric Native Americans to investigate the biological prehistory of eastern North America. The demographic history of the region isExpand
Y-chromosome evidence for differing ancient demographic histories in the Americas.
TLDR
Age estimates based on Y-chromosome microsatellite diversity place the initial settlement of the American continent at approximately 14,000 years ago, in relative agreement with the age of well-established archaeological evidence. Expand
Genetic evidence for a higher female migration rate in humans
TLDR
It is found that Y chromosome variants tend to be more localized geographically than those of mtDNA and the autosomes, and the reduction of variation within populations for Y chromosome single nucleotide polymorphisms (SNPs) is of such magnitude that differences in the effective population sizes of the sexes alone are insufficient to produce the observation. Expand
Unexpected patterns of mitochondrial DNA variation among Native Americans from the southeastern United States.
TLDR
It is suggested that a genetic bottleneck associated with the historical population decline is the most plausible explanation for such patterns of mtDNA variation. Expand
Y-chromosome biallelic polymorphisms and Native American population structure.
TLDR
Analysis of mtDNA restriction fragment polymorphisms in Amerinds from North, Central and South America agree with previous findings in not supporting a higher migration rate for women in these populations and suggest the existence of a North to South gradient of increasing drift in the Americas. Expand
Global patterns of human mitochondrial DNA and Y-chromosome structure are not influenced by higher migration rates of females versus males
TLDR
A new strategy to assay Y-chromosome variation is introduced that identifies a high density of single-nucleotide polymorphisms, allows complete sequencing of all individuals rather than relying on predetermined markers and provides direct sequence comparisons with mtDNA. Expand
Ancient DNA and the biological history and prehistory of Northeastern North America
This study specializes in the recovery, identification, and analysis of DNA from degraded remains and is applied in two complementary areas: the interaction of genes, culture, and language inExpand
Autosomal, mtDNA, and Y-chromosome diversity in Amerinds: pre- and post-Columbian patterns of gene flow in South America.
TLDR
Admixture analysis of the Colombian populations suggests an asymmetric pattern of mating involving mostly immigrant men and native women, and the concordance of these estimates does not support an important difference in migration rates between the sexes throughout the history of South Amerinds. Expand
Mitochondrial DNA diversity in South America and the genetic history of Andean highlanders.
TLDR
Comparison of among-population variability of mtDNA and Y-chromosome DNA seems to indicate that South America is the only continent where the levels of differentiation are similar for maternal and paternal lineages. Expand
Contrasting patterns of Y chromosome and mtDNA variation in Africa: evidence for sex-biased demographic processes
TLDR
The data suggest that patterns of differentiation and gene flow in Africa have differed for men and women in the recent evolutionary past, and infer that sex-biased rates of admixture and/or language borrowing between expanding Bantu farmers and local hunter-gatherers played an important role in influencing patterns of genetic variation during the spread of African agriculture in the last 4000 years. Expand
...
1
2
3
4
5
...