Results 21 to 30 of about 21,298 (252)
Sympatric speciation: when is it possible in bacteria?
PLoS ONE, 2013 According to theory, sympatric speciation in sexual eukaryotes is favored when relatively few loci in the genome are sufficient for reproductive isolation and adaptation to different niches. Here we show a similar result for clonally reproducing bacteria,
Jonathan Friedman +2 more
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Inversions maintain differences between migratory phenotypes of a songbird
Nature Communications, 2023 Rearrangements in the genome are important for local adaptation and speciation but are often difficult to identify reliably. Here the authors show that rearrangements underlie large chromosome regions that separate differentially migratory willow ...
Max Lundberg +3 more
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Adaptation, speciation and extinction in the Anthropocene [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2018 Humans have dramatically altered the planet over the course of a century, from the acidity of our oceans to the fragmentation of our landscapes and the temperature of our climate. Species find themselves in novel environments, within communities assembled from never before encountered mixtures of invasives and natives.
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A Combinatorial View on Speciation and Adaptive Radiation [PDF]
Trends in Ecology & Evolution, 2019 Speciation is often thought of as a slow process due to the waiting times for mutations that cause incompatibilities, and permit ecological differentiation or assortative mating. Cases of rapid speciation and particularly cases of rapid adaptive radiation into multiple sympatric species have remained somewhat mysterious.
Marques, David A +2 more
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Intraspecies Genomic Divergence of a Fig Wasp Species Is Due to Geographical Barrier and Adaptation
Frontiers in Ecology and Evolution, 2021 Understanding how intraspecies divergence results in speciation has great importance for our knowledge of evolutionary biology. Here we applied population genomics approaches to a fig wasp species (Valisia javana complex sp 1) to reveal its intraspecies ...
Xun Xu +6 more
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Evolution Letters, 2020 Adaptation to contrasting environments occurs when advantageous alleles accumulate in each population, but it remains largely unknown whether these same advantageous alleles create genetic incompatibilities that can cause intrinsic reproductive isolation
Greg M. Walter +5 more
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Toxins, 2021 Ecologically divergent selection can lead to the evolution of reproductive isolation through the process of ecological speciation, but the balance of responsible evolutionary forces is often obscured by an inadequate assessment of demographic history and
Mark J. Margres +6 more
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Local adaptation does not lead to genome‐wide differentiation in lava flow lizards
Ecology and Evolution, 2019 Adaptation can occur with or without genome‐wide differentiation. If adaptive loci are linked to traits involved in reproductive isolation, genome‐wide divergence is likely, and speciation is possible.
Alexander R. Krohn +3 more
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Chromosome Inversions, Local Adaptation and Speciation [PDF]
Genetics, 2006 Abstract We study the evolution of inversions that capture locally adapted alleles when two populations are exchanging migrants or hybridizing. By suppressing recombination between the loci, a new inversion can spread. Neither drift nor coadaptation between the alleles (epistasis) is needed, so this local adaptation mechanism may ...
Mark, Kirkpatrick, Nick, Barton
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Population Ecology, 2021 AbstractBiological diversification often includes burst of lineage splitting. Such “radiation” has been known to act as evolutionary arenas with the potential to generate unique phylogenetic clusters and further novel groups. Although these radiations when accompanied by ecological diversification, so‐called “adaptive radiation” have persisted as a ...
Kei W. Matsubayashi, Ryo Yamaguchi
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