Results 71 to 80 of about 6,918,483 (191)

Genome-wide SNP analysis of Southern African populations provides new insights into the dispersal of Bantu-speaking groups [PDF]

open access: yes, 2015
The expansion of Bantu-speaking agropastoralist populations had a great impact on the genetic, linguistic, and cultural variation of sub-Saharan Africa. It is generally accepted that Bantu languages originated in an area around the present border between
ANAGNOSTOU, PAOLO   +8 more
core   +3 more sources

Habitat Predicts Levels of Genetic Admixture in Saccharomyces cerevisiae

open access: yesG3: Genes, Genomes, Genetics, 2017
Genetic admixture can provide material for populations to adapt to local environments, and this process has played a crucial role in the domestication of plants and animals.
Viranga Tilakaratna, Douda Bensasson
doaj   +1 more source

The Genetic Structure and History of Africans and African Americans. [PDF]

open access: yes, 2009
Africa is the source of all modern humans, but characterization of genetic variation and of relationships among populations across the continent has been enigmatic. We studied 121 African populations, four African American populations, and 60 non-African
A. A. Awomoyi   +61 more
core   +1 more source

mapmixture: An R package and web app for spatial visualisation of admixture and population structure.

open access: yesMolecular Ecology Resources
The mapmixture R package and interactive web app are tools to aid visualisation of admixture and population structure in geographic space. The purpose of mapmixture is to enable and encourage molecular ecologists, and in particular population geneticists
Tom L. Jenkins
semanticscholar   +1 more source

Testing for Ancient Admixture between Closely Related Populations [PDF]

open access: yesMolecular Biology and Evolution, 2011
One enduring question in evolutionary biology is the extent of archaic admixture in the genomes of present-day populations. In this paper, we present a test for ancient admixture that exploits the asymmetry in the frequencies of the two nonconcordant gene trees in a three-population tree.
Eric Y, Durand   +3 more
openaire   +2 more sources

Laboratory colonisation and genetic bottlenecks in the tsetse fly Glossina pallidipes [PDF]

open access: yes, 2014
Background The IAEA colony is the only one available for mass rearing of Glossina pallidipes, a vector of human and animal African trypanosomiasis in eastern Africa. This colony is the source for Sterile Insect Technique (SIT) programs in East Africa.
Ciosi, Marc   +2 more
core   +3 more sources

Demographic history and admixture dynamics in African Sahelian populations [PDF]

open access: yesHuman Molecular Genetics, 2020
AbstractThe Sahel/Savannah belt of Africa is a contact zone between two subsistence systems (nomadic pastoralism and sedentary farming) and of two groups of populations, namely Eurasians penetrating from northern Africa southwards and sub-Saharan Africans migrating northwards. Because pastoralism is characterized by a high degree of mobility, it leaves
Viktor Černý   +2 more
openaire   +2 more sources

Inferring the population structure and admixture history of three Hmong-Mien-speaking Miao tribes from southwest China based on genome-wide SNP genotyping

open access: yesAnnals of Human Biology, 2021
Background Hmong-Mien speaking Miao, also called Hmong, is the sixth largest ethnic group in mainland China. However, the fine-scale genetic profiles and population history of Miao populations in southwest China, especially in Guizhou province, remain ...
Ting Luo, Rui Wang, Chuan-Chao Wang
doaj   +1 more source

The variance of identity-by-descent sharing in the Wright-Fisher model

open access: yes, 2013
Widespread sharing of long, identical-by-descent (IBD) genetic segments is a hallmark of populations that have experienced recent genetic drift. Detection of these IBD segments has recently become feasible, enabling a wide range of applications from ...
Ariel Darvasi   +8 more
core   +1 more source

Genetic ancestry, admixture, and population structure in rural Dominica

open access: yesPLOS ONE, 2021
The Caribbean is a genetically diverse region with heterogeneous admixture compositions influenced by local island ecologies, migrations, colonial conflicts, and demographic histories. The Commonwealth of Dominica is a mountainous island in the Lesser Antilles historically known to harbor communities with unique patterns of migration, mixture, and ...
Monica H. Keith   +7 more
openaire   +5 more sources

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