Results 111 to 120 of about 3,058,276 (339)
Epigenetics of Ancient DNA [PDF]
Acta Naturae, 2016 Initially, the study of DNA isolated from ancient specimens had been based on the analysis of the primary nucleotide sequence. This approach has allowed researchers to study the evolutionary changes that occur in different populations and determine the influence of the environment on genetic selection.
ZHENILO S.V. +2 more
openaire +2 more sources
African population history: an ancient DNA perspective.
Current Opinion in Genetics and Development, 2020 The history of human populations in Africa is complex and includes various demographic events that influenced patterns of genetic variation across the continent. Through genetic studies of modern-day, and most recently, ancient African genetic variation,
M. Vicente, Carina M. Schlebusch
semanticscholar +1 more source
Detecting cryptic ghost lineage introgression in four‐taxon genomic datasets
Applications in Plant Sciences, EarlyView.Abstract Premise Hybridization and introgression are pervasive evolutionary forces that have played fundamental roles in shaping the diversity of wild and domesticated plants. Four‐taxon tests for introgression provide a reliable framework for detecting signatures of ancient introgression from genomic data, which have played an important role in ...
Evan S. Forsythe +3 more
wiley +1 more source
International Journal of Dentistry, 2010 Objective. The purpose of this study was to analyze the absorption of metal ions released from stainless steel crowns by root surface of primary molars. Study Design.
David Keinan +2 more
doaj +1 more source
Ancient DNA & stable isotope profiling of fossil eggshell [PDF]
, 2012 Eggshell is frequently encountered within palaeontological and archaeological deposits and due to various chemical and physical properties, it is highly valued as a substrate for geochronology, palaeodietary and palaeoecological applications. Despite the
Oskam, Charlotte
core +1 more source
Present‐Day DNA Contamination in Ancient DNA Datasets
Bioessays, 2020 Present‐day contamination can lead to false conclusions in ancient DNA studies. A number of methods are available to estimate contamination, which use a variety of signals and are appropriate for different types of data.
Stéphane Peyrégne, Kay Prüfer
semanticscholar +1 more source
The Anatomical Record, EarlyView.Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx +6 more
wiley +1 more source
Diversity, 2019 The recently extinct New Zealand adzebills (Aptornithidae, Aptornis spp.) were an enigmatic group of large flightless birds that have long eluded precise taxonomic assignment as they do not closely resemble any extant birds.
Alexander P. Boast +9 more
doaj +1 more source
DNA and Etruscan identity [PDF]
, 2017 From the time of Herodotus, who suggested that the Etruscans were immigrants to Italy, to the present day, the origin of the Etruscans has been debated.
Perkins, Phil
core
Meta-Analysis of Mitochondrial DNA Reveals Several Population Bottlenecks during Worldwide Migrations of Cattle [PDF]
, 2014 Several studies have investigated the differentiation of mitochondrial DNA in Eurasian, African and American cattle as well as archaeological bovine material.
Albano Beja-Pereira +25 more
core +3 more sources