Skip to search formSkip to main contentSkip to account menu
Beringian Standstill and Spread of Native American Founders
TLDR
The newly resolved phylogenetic structure suggests that ancestors of Native Americans paused when they reached Beringia, during which time New World founder lineages differentiated from their Asian sister-clades, and a swift migration southward that distributed the founder types all the way to South America.
View PDF
A Three-Stage Colonization Model for the Peopling of the Americas
TLDR
A model for the peopling of the New World in which Amerind ancestors diverged from the Asian gene pool prior to 40,000 years ago and experienced a gradual population expansion as they moved into Beringia is supported.
View PDF
Ancient DNA from Nubian and Somali wild ass provides insights into donkey ancestry and domestication
TLDR
These findings resolve the long-standing issue of the role of the Nubian wild ass in the domestication of the donkey, but raise new questions regarding the second ancestor for the donkey.
View on Royal Society
Methylation changes at NR3C1 in newborns associate with maternal prenatal stress exposure and newborn birth weight
TLDR
A significant correlation is shown between culturally relevant measures of maternal prenatal stress, newborn birth weight and newborn methylation in the promoter of the glucocorticoid receptor NR3C1, which may constrain plasticity in subsequent gene expression and restrict the range of stress adaptation responses possible in affected individuals, thus increasing their risk for adult-onset diseases.
View on Taylor & Francis
Molecular evolution of the tprC, D, I, K, G, and J genes in the pathogenic genus Treponema.
TLDR
The results demonstrate that intragenomic recombination has played a significant role in the evolution of the studied tpr genes and emphasize that efforts to infer evolutionary history of the treponemes can be complicated if past recombination events are not recognized.
View on PubMed
Bayesian phylogenetic analysis of Semitic languages identifies an Early Bronze Age origin of Semitic in the Near East
TLDR
A relaxed linguistic clock is implemented to date language divergences and epigraphic evidence for the sampling dates of extinct Semitic languages to calibrate the rate of language evolution and statistical tests of alternative Semitic histories support an initial divergence of Akkadian from ancestral Semitic over competing hypotheses.
View on Royal Society
Updated Three-Stage Model for the Peopling of the Americas
TLDR
The period of population isolation required for the generation of New World mitochondrial founder haplogroup-defining genetic variants makes the existence of three stages of colonization a logical conclusion.
View PDF
Regional differences in the distribution of the sub-Saharan, West Eurasian, and South Asian mtDNA lineages in Yemen.
TLDR
It is concluded that the Yemeni gene pool is highly stratified both regionally and temporally and that it has received West Eurasian, Northeast African, and South Asian gene flow.
View on PubMed
Allelic variation and haplotype structure of the dopamine receptor gene DRD2 in nine Indian populations.
TLDR
The results demonstrate that the six markers are highly polymorphic in all populations and the constructed haplotypes show a high level of heterozygosity, out of the eight possible three-site haplotypes, all populations commonly shared only three haplotypes.
View on PubMed
Prenatal Maternal Stress Predicts Methylation of Genes Regulating the Hypothalamic-Pituitary-Adrenocortical System in Mothers and Newborns in the Democratic Republic of Congo.
TLDR
Findings suggest that prenatal stress exposure impacts development via epigenetic changes in HPA axis genes through methylation in CRH, CRHBP, NR3C1, and FKBP5 genes.
View on PubMed
...
...
By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy Policy, Terms of Service, and Dataset License