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Related Concept Videos

Synteny and Evolution02:31

Synteny and Evolution

John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral chromosome underwent...
What is Population Genetics?01:25

What is Population Genetics?

A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
Gene Flow02:39

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
Human Genetics01:28

Human Genetics

Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
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Hybrid Zones02:29

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).

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Application of DNA Fingerprinting using the D1S80 Locus in Lab Classes
08:35

Application of DNA Fingerprinting using the D1S80 Locus in Lab Classes

Published on: July 17, 2021

Human population admixture in Asia.

Shuhua Xu1

  • 1Max Planck Independent Research Group on Population Genomics, Chinese Academy of Sciences and Max Planck Society (CAS-MPG) Partner Institute for Computational Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.

Genomics & Informatics
|November 21, 2012
PubMed
Summary
This summary is machine-generated.

Genetic admixture studies in Asia are underrepresented compared to the New World. This overview synthesizes population genomic research on Asian admixture, exploring population structure and history.

Keywords:
admixture mappinggenetic admixturelocal adaptationpopulation structure

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Area of Science:

  • Population Genomics
  • Human Evolutionary Studies
  • Genetic Anthropology

Background:

  • Genetic admixture, resulting from inter-marriage between distinct populations, is a significant factor in human evolution.
  • While extensively studied in the New World due to historical colonization, similar research in Asia remains underrepresented.
  • Asia exhibits a high prevalence of genetic admixture among previously isolated human populations.

Purpose of the Study:

  • To provide a comprehensive overview of published population genomic studies on human admixture in Asia.
  • To focus on the population structure and historical aspects of admixed populations within the Asian continent.

Main Methods:

  • Review and synthesis of existing population genomic studies.
  • Analysis of data focusing on population structure and historical demographic events.

Main Results:

  • Identifies a gap in research on Asian admixture compared to the New World.
  • Highlights the prevalence and complexity of genetic admixture across various Asian populations.
  • Summarizes key findings regarding population structure and history derived from genomic data.

Conclusions:

  • Emphasizes the need for increased research into the genetic landscape of admixed populations in Asia.
  • Underscores the importance of understanding population history and structure for a complete picture of human genetic diversity.