Results 31 to 40 of about 128,214 (287)

In search of the Goldilocks zone for hybrid speciation. [PDF]

open access: yesPLoS Genetics, 2018
Hybridization has recently gained considerable interest both as a unique opportunity for observing speciation mechanisms and as a potential engine for speciation. The latter remains a controversial topic.
Alexandre Blanckaert, Claudia Bank
doaj   +1 more source

Genetic differentiation in Scottish populations of the pine beauty moth Panolis flammea (Lepidoptera: Noctuidae) [PDF]

open access: yes, 2005
Pine beauty moth, Panolis flammea (Denis & Schiffermüller), is a recent but persistent pest of lodgepole pine plantations in Scotland, but exists naturally at low levels within remnants and plantations of Scots pine.
A.D. Watt   +19 more
core   +2 more sources

Speciation and the developmental alarm clock

open access: yeseLife, 2020
New species arise as the genomes of populations diverge. The developmental ‘alarm clock’ of speciation sounds off when sufficient divergence in genetic control of development leads hybrid individuals to infertility or inviability, the world awoken to the
Asher D Cutter, Joanna D Bundus
doaj   +1 more source

Host-plant adaptation as a driver of incipient speciation in the fall armyworm (Spodoptera frugiperda)

open access: yesBMC Ecology and Evolution, 2022
Background Divergent selection on host-plants is one of the main evolutionary forces driving ecological speciation in phytophagous insects. The ecological speciation might be challenging in the presence of gene flow and assortative mating because the ...
Estelle Fiteni   +8 more
doaj   +1 more source

Whole-Genome Diversification Analysis of the Hornbeam Species Reveals Speciation and Adaptation Among Closely Related Species

open access: yesFrontiers in Plant Science, 2021
Speciation is the key evolutionary process for generating biological diversity and has a central place in evolutionary and ecological research. How species diverge and adapt to different habitats is one of the most exciting areas in speciation studies ...
Zeyu Zheng   +11 more
doaj   +1 more source

The genetic architecture underlying the evolution of a rare piscivorous life history form in brown trout after secondary contact and strong introgression [PDF]

open access: yes, 2018
Identifying the genetic basis underlying phenotypic divergence and reproductive isolation is a longstanding problem in evolutionary biology. Genetic signals of adaptation and reproductive isolation are often confounded by a wide range of factors, such as
Adams, Colin E.   +4 more
core   +2 more sources

Sympatric speciation in an age-structured population living on a lattice [PDF]

open access: yes, 2004
A square lattice is introduced into the Penna model for biological aging in order to study the evolution of diploid sexual populations under certain conditions when one single locus in the individual's genome is considered as identifier of species.
A. O. Sousa   +8 more
core   +2 more sources

Evidence for cryptic speciation in directly transmitted Gyrodactylid parasites of Trinidadian guppies [PDF]

open access: yes, 2015
Cryptic species complexes are common among parasites, which tend to have large populations and are subject to rapid evolution. Such complexes may arise through host-parasite co-evolution and/or host switching.
Cable, Jo   +5 more
core   +12 more sources

Genetics of ecological divergence during speciation [PDF]

open access: yesNature, 2014
Ecological differences often evolve early in speciation as divergent natural selection drives adaptation to distinct ecological niches, leading ultimately to reproductive isolation. Although this process is a major generator of biodiversity, its genetic basis is still poorly understood.
Arnegard, M.   +12 more
openaire   +4 more sources

The population genetics of speciation by cascade reinforcement

open access: yesEcology and Evolution, 2023
AbstractSpecies interactions drive diverse evolutionary outcomes. Speciation by cascade reinforcement represents one example of how species interactions can contribute to the proliferation of species. This process occurs when the divergence of mating traits in response to selection against interspecific hybridization incidentally leads to reproductive ...
Carlie B. Anderson   +8 more
openaire   +3 more sources

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