Sentence examples for ancient sampling from inspiring English sources

Collinearity between SNP genotypes can be a result of a physical proximity between two SNPs in terms of base pairs, and can persist over many generations after being induced by an ancient sampling event (e.g. the breed formation).

Link, V. et al. ATLAS: analysis tools for low-depth and ancient samples.

In addition to damage, ancient samples can acquire exogenous contamination that may obscure any remaining endogenous signal.

We successfully genetically identified the species of 27 ancient samples, of which 15 were bowhead whales (Supplementary Fig. S1).

(a) Map showing the sample location of the brown bears analysed using mtDNA, including information on what clades they belong to; ancient samples (dots), modern samples (triangles).

Since then, researchers have adopted strict procedures to ensure they are not contaminating ancient samples with modern-day DNA.

However, the number of analysed ancient samples from the Mediterranean area, where U7b has elevated frequencies today, is still rather small.

(B) Distribution of mtDNA K1 (circles) and Y chromosome G2a (rectangles) haplogroups in ancient samples dated > 5,000 ybp and their absolute frequencies.

Human DNA quantification has become an essential means to evaluate the preservation of ancient samples and to ensure the authentication of the results in ancient DNA research.

Additional sampling of ancient genomes will assist in determining the frequency of these mutations in co-circulating Y. pestis strains, and will clarify the emergence of branch 2 strains that are as yet unreported in ancient samples.

The ability to recover ancient samples of DNA provides an opportunity to study long-term evolutionary changes that may affect the epidemiology of microbial pathogens.