Results 31 to 40 of about 1,855,658 (333)

Population Transcriptomics Reveals Gene Flow and Introgression Between Two Non-sister Alpine Gentians

open access: yesFrontiers in Ecology and Evolution, 2021
Distributional shifts driven by Quaternary climatic oscillations have been suggested to cause interspecific hybridization and introgression. In this study, we aimed to test this hypothesis by using population transcriptomes and coalescent modeling of two
Chunlin Chen   +6 more
doaj   +1 more source

Dispersal and gene flow in free-living marine nematodes [PDF]

open access: yes, 2013
Dispersal and gene flow determine connectivity among populations, and can be studied through population genetics and phylogeography. We here review the results of such a framework for free-living marine nematodes.
Backeljau, Thierry   +2 more
core   +1 more source

Polyploidy breaks speciation barriers in Australian burrowing frogs Neobatrachus [PDF]

open access: yes, 2020
Polyploidy has played an important role in evolution across the tree of life but it is still unclear how polyploid lineages may persist after their initial formation.
Booker, William   +11 more
core   +4 more sources

Targeted gene flow for conservation [PDF]

open access: yesConservation Biology, 2015
AbstractAnthropogenic threats often impose strong selection on affected populations, causing rapid evolutionary responses. Unfortunately, these adaptive responses are rarely harnessed for conservation. We suggest that conservation managers pay close attention to adaptive processes and geographic variation, with an eye to using them for conservation ...
Ella Kelly, Ben L. Phillips
openaire   +2 more sources

Evidence of gene flow between transgenic and non-transgenic maize in Colombia

open access: yesAgronomía Colombiana, 2015
Maize (Zea mays) is an important crop worldwide and is essential for industry. Many transgenic cultivars of maize have been developed over the years from this species, producing cultivars resistant to herbicides and insects, among other things.
Alejandro Chaparro-Giraldo   +2 more
doaj   +1 more source

Gene flow patterns reinforce the ecological plasticity of Tropidurus hispidus (Squamata: Tropiduridae)

open access: yesCaryologia, 2020
The analysis of gene flow patterns can provide important insights into population dynamics in the context of landscape ecology. In lizards, this approach has been used to evaluate patterns related to climate change, habitat fragmentation, and taxonomic ...
Fernanda Ito   +3 more
doaj   +1 more source

Local adaptation with high gene flow: temperature parameters drive adaptation to altitude in the common frog (Rana temporaria) [PDF]

open access: yes, 2014
Both environmental and genetic influences can result in phenotypic variation. Quantifying the relative contributions of local adaptation and phenotypic plasticity to phenotypes is key to understanding the effect of environmental variation on populations.
Biek, R.   +3 more
core   +2 more sources

A Continuous Method for Gene Flow [PDF]

open access: yesGenetics, 2013
Abstract Most modern population genetics inference methods are based on the coalescence framework. Methods that allow estimating parameters of structured populations commonly insert migration events into the genealogies. For these methods the calculation of the coalescence probability density of a genealogy requires a product over all ...
Peter Beerli, Michal Palczewski
openaire   +3 more sources

Diffuse flow environments within basalt- and sediment-based hydrothermal vent ecosystems harbor specialized microbial communities [PDF]

open access: yes, 2013
Hydrothermal vents differ both in surface input and subsurface geochemistry. The effects of these differences on their microbial communities are not clear.
Campbell, Barbara J.   +6 more
core   +3 more sources

Pattern of population structuring between Belgian and Estonian bumblebees [PDF]

open access: yes, 2019
Several population genetic studies investigated the extent of gene flow and population connectivity in bumblebees. In general, no restriction in gene flow is considered for mainland populations of common bumblebee species.
Karise, Reet   +4 more
core   +1 more source

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