Results 1 to 10 of about 63,195 (262)

Speciation and gene flow between snails of opposite chirality.

open access: yesPLoS Biology, 2005
Left-right asymmetry in snails is intriguing because individuals of opposite chirality are either unable to mate or can only mate with difficulty, so could be reproductively isolated from each other. We have therefore investigated chiral evolution in the
Angus Davison   +3 more
doaj   +6 more sources

Experimental evidence of genome-wide impact of ecological selection during early stages of speciation-with-gene-flow. [PDF]

open access: yesEcol Lett, 2015
Theory predicts that speciation-with-gene-flow is more likely when the consequences of selection for population divergence transitions from mainly direct effects of selection acting on individual genes to a collective property of all selected genes in ...
Egan SP   +7 more
europepmc   +6 more sources

Genetic Incompatibilities Between Mitochondria and Nuclear Genes: Effect on Gene Flow and Speciation [PDF]

open access: yesFrontiers in Genetics, 2019
The process of speciation is, according to the biological species concept, the reduction in gene flow between genetically diverging populations. Most of the previous theoretical studies analyzed the effect of nuclear genetic incompatibilities on gene ...
Arndt Telschow   +3 more
doaj   +6 more sources

Speciation with gene flow between two Neotropical sympatric species (Pitcairnia spp.: Bromeliaceae) [PDF]

open access: yesEcology and Evolution, 2022
The study of mechanisms that generate new species is considered fundamental for broad areas of ecology and evolution. Speciation is a continuous process in which reproductive isolation is established, and it is of fundamental importance to understand the
Marília Manuppella Tavares   +3 more
doaj   +2 more sources

Speciation with gene flow: Evidence from a complex of alpine butterflies (Coenonympha, Satyridae) [PDF]

open access: yesEcology and Evolution, 2019
Until complete reproductive isolation is achieved, the extent of differentiation between two diverging lineages is the result of a dynamic equilibrium between genetic isolation and mixing.
Thibaut Capblancq   +3 more
doaj   +2 more sources

Parapatric speciation with recurrent gene flow of two sexual dichromatic pheasants

open access: yesAvian Research, 2022
Understanding speciation has long been a fundamental goal of evolutionary biology. It is widely accepted that speciation requires an interruption of gene flow to generate strong reproductive isolation between species.
Zheng Li   +4 more
doaj   +1 more source

Multilocus phylogeography and ecological niche modeling suggest speciation with gene flow between the two Bamboo Partridges

open access: yesAvian Research, 2021
Background Understanding how species diversify is a long-standing question in biology. The allopatric speciation model is a classic hypothesis to explain the speciation process. This model supposes that there is no gene flow during the divergence process
Pengcheng Wang   +8 more
doaj   +1 more source

Incipient speciation between host-plant strains in the fall armyworm

open access: yesBMC Ecology and Evolution, 2022
Background Recent advancement in speciation biology proposes that genetic differentiation across the whole genome (genomic differentiation, GD) may occur at the beginning of a speciation process and that GD itself may accelerate the rate of speciation ...
Karine Durand   +2 more
doaj   +1 more source

Genomic signatures of host-associated divergence and adaptation in a coral-eating snail, Coralliophila violacea (Kiener, 1836). [PDF]

open access: yes, 2020
The fluid nature of the ocean, combined with planktonic dispersal of marine larvae, lowers physical barriers to gene flow. However, divergence can still occur despite gene flow if strong selection acts on populations occupying different ecological niches.
Barber, Paul H   +4 more
core   +1 more source

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