The ancestry of each locus of the genome can be estimated (local ancestry) based on sequencing or genotyping information together with reference panels of ancestral source populations. The length of those ancestry-specific genomic segments are commonly used to understand migration waves and admixture events. In short time scales, it is often of interest to determine the existence of the most recent unadmixed ancestor from a specific population t generations ago. We built a hypothesis test to determine if an individual has an ancestor belonging to a target ancestral population t generations ago based on these lengths of the ancestry-specific segments at an individual level. We applied this test on a data set that includes 20 Uruguayan admixed individuals to estimate for each one how many generations ago the most recent indigenous ancestor lived. As this method tests each individual separately, it is particularly suited to small sample sizes, such as our study or ancient genome samples.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9374268 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0271097 | PLOS |
Publication Analysis
Top Keywords
Similar Publications
A hybrid meta on-top functional for multiconfiguration pair-density functional theory.
Proc Natl Acad Sci U S A
January 2025
Department of Chemistry, Chemical Theory Center, University of Minnesota, Minneapolis, MN 55455-0431.
Multiconfiguration pair-density functional theory (MC-PDFT) was proposed a decade ago, but it is still in the early stage of density functional development. MC-PDFT uses functionals that are called on-top functionals; they depend on the density and the on-top pair density. Most MC-PDFT calculations to date have been unoptimized translations of generalized gradient approximations (GGAs) of Kohn-Sham density functional theory (KS-DFT).
View Article and Find Full Text PDFProgress on ancient DNA investigation of Late Quaternary mammals in China.
Yi Chuan
January 2025
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China.
It has been more than 40 years since the beginning of exploring the genetic composition of ancient organisms from the perspective of ancient DNA. In the recent 20 years, with the development and application of high-throughput sequencing technology platforms and the improved efficiency of retrieving highly fragmented DNA molecules, ancient DNA research moved forward to a brand-new era of deep-time paleogenomics. It not only solved many controversial phylogenetic problems, enriched the migration and evolution details of various organisms including humans, but also launched exploration of the molecular responses to climate changes in terms of "whole genomic-big data-multi-species" level.
View Article and Find Full Text PDFRare of Gaucher's Disease Complication of Splenic Multiple Gaucheroma.
Endocr Metab Immune Disord Drug Targets
January 2025
Department of Endocrinology and Metabolic Diseases, Erciyes University Faculty of Medicine, Kayseri, Turkey.
Background: Gaucheromas, pseudotumors composed of Gaucher cells, are rare complications of Gaucher's Disease (GD). They are usually seen in patients receiving enzyme replacement. Surgery is generally not recommended for these benign masses in treatment management.
View Article and Find Full Text PDFAmphibian-Derived Antimicrobial Peptides: Essential Components of Innate Immunity and Potential Leads for New Antibiotic Development.
Protein Pept Lett
January 2025
Department of Biology, Faculty of Science, Ege University, Izmir, Turkey.
Like other vertebrates, amphibians possess innate and adaptive immune systems. At the center of the adaptive immune system is the Major Histocompatibility Complex. The important molecules of innate immunity are antimicrobial peptides (AMPs).
View Article and Find Full Text PDFInfluence of Disease Knowledge on the Metabolic Control of Diabetes Mellitus: A Cross-Sectional Study.
Cureus
December 2024
Saúde Oeste Family Health Unit, Braga Local Health Unit, Braga, PRT.
Aim: Diabetes mellitus is a prevalent disease in the Portuguese population and is associated with significant morbidity and mortality. Its proper therapeutic management is multifactorial, with lifestyle habits having a major impact. Studies show that poorer metabolic control is associated with deficient knowledge related to diabetes, lower self-efficacy, and limited patient empowerment.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!