Results 11 to 20 of about 29,556 (256)

Adaptation by introgression [PDF]

open access: yesJournal of Biology, 2009
Both selective and random processes can affect the outcome of natural hybridization. A recent analysis in BMC Evolutionary Biology of natural hybridization between an introduced and a native salamander reveals the mosaic nature of introgression, which is probably caused by a combination of selection and demography.
Arnold, Michael L, Martin, Noland H
openaire   +2 more sources

Divergence-Based Introgression Polarization [PDF]

open access: yesGenome Biology and Evolution, 2019
Abstract Introgressive hybridization results in the transfer of genetic material between species, often with fitness implications for the recipient species. The development of statistical methods for detecting the signatures of historical introgression in whole-genome data has been a major area of focus.
Mark A Beilstein   +2 more
openaire   +2 more sources

Genomic Patterns of Introgression in Interspecific Populations Created by Crossing Wheat with Its Wild Relative

open access: yesG3: Genes, Genomes, Genetics, 2020
Introgression from wild relatives is a valuable source of novel allelic diversity for breeding. We investigated the genomic patterns of introgression from Aegilops tauschii, the diploid ancestor of the wheat D genome, into winter wheat (Triticum aestivum)
Moses Nyine   +5 more
doaj   +1 more source

Crop–Weed Introgression Plays Critical Roles in Genetic Differentiation and Diversity of Weedy Rice: A Case Study of Human-Influenced Weed Evolution

open access: yesBiology, 2023
As an important driving force, introgression plays an essential role in shaping the evolution of plant species. However, knowledge concerning how introgression affects plant evolution in agroecosystems with strong human influences is still limited.
Xing-Xing Cai   +5 more
doaj   +1 more source

A three-sample test for introgression [PDF]

open access: yesMolecular Biology and Evolution, 2019
Abstract Many methods exist for detecting introgression between non-sister species, but the most commonly used require either a single sequence from four or more taxa or multiple sequences from each of three taxa. Here we present a test for introgression that uses only a single sequence from three taxa.
Hahn, Matthew W., Hibbins, Mark S.
openaire   +2 more sources

The Genetic Cost of Neanderthal Introgression [PDF]

open access: yesGenetics, 2015
Abstract Approximately 2–4% of genetic material in human populations outside Africa is derived from Neanderthals who interbred with anatomically modern humans. Recent studies have shown that this Neanderthal DNA is depleted around functional genomic regions; this has been suggested to be a consequence of harmful epistatic interactions
Harris, Kelley, Nielsen, Rasmus
openaire   +5 more sources

The genomic impact of historical hybridization with massive mitochondrial DNA introgression

open access: yesGenome Biology, 2018
Background The extent to which selection determines interspecific patterns of genetic exchange enlightens the role of adaptation in evolution and speciation.
Fernando A. Seixas   +2 more
doaj   +1 more source

Assessing biological factors affecting postspeciation introgression

open access: yesEvolution Letters, 2020
An increasing number of phylogenomic studies have documented a clear “footprint” of postspeciation introgression among closely related species. Nonetheless, systematic genome‐wide studies of factors that determine the likelihood of introgression remain ...
Jennafer A. P. Hamlin   +2 more
doaj   +1 more source

Genomic evidence supports the introgression between two sympatric stickleback species inhabiting the White Sea basin

open access: yesHeliyon, 2021
Interspecies hybridization is driven by a complex interplay of factors where introgression plays an important role. In the present study, the transfer of genetic material, between two quite distant fish species from different genera, through spontaneous ...
Artem Nedoluzhko   +7 more
doaj   +1 more source

Characterization of introgression from the teosinte Zea mays ssp. mexicana to Mexican highland maize [PDF]

open access: yesPeerJ, 2019
Background The spread of maize cultivation to the highlands of central Mexico was accompanied by substantial introgression from the endemic wild teosinte Zea mays ssp.
Eric Gonzalez-Segovia   +7 more
doaj   +2 more sources

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