Results 11 to 20 of about 128,214 (287)
Cytonuclear Genetic Incompatibilities in Plant Speciation [PDF]
Due to the endosymbiotic origin of organelles, a pattern of coevolution and coadaptation between organellar and nuclear genomes is required for proper cell function.
Zoé Postel, Pascal Touzet
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The evolutionary genetics of speciation [PDF]
The last decade has brought renewed interest in the genetics of speciation, yielding a number of new models and empirical results. Defining speciation as ‘the origin of reproductive isolation between two taxa’, we review recent theoretical studies and relevant data, emphasizing the regular patterns seen among genetic analyses.
J A, Coyne, H A, Orr
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Genetic Links between Recombination and Speciation. [PDF]
Meiosis distinguishes cells in the germ line from their somatic counterparts. Part of meiosis involves a bizarre series of events in which cells deliberately damage their DNA and then repair it. Of the many double-strand breaks that are generated, a minority are resolved as reciprocal exchanges between homologous chromosomes [1].
Bret A Payseur
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Genetics and ecological speciation [PDF]
Species originate frequently by natural selection. A general mechanism by which this occurs is ecological speciation, defined as the evolution of reproductive isolation between populations as a result of ecologically-based divergent natural selection. The alternative mechanism is mutation-order speciation in which populations fix different mutations as
Dolph, Schluter, Gina L, Conte
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GENETICS, SPECIATION AND THE FOUNDER PRINCIPLE [PDF]
W. Anderson, K. Kaneshiro & L. V. Giddings: H. L. Carson: Interviews toward an intellectual history W. B. Provine: Founder effects and genetic revolutions in microevolution and speciation: an historical perspective G. D. Carr, R. H. Robichaux, M. S. Witter & D. W.
L V, Giddings, K Y, Kaneshiro
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Genetic tests for ecological and allopatric speciation in anoles on an island archipelago. [PDF]
From Darwin's study of the Galapagos and Wallace's study of Indonesia, islands have played an important role in evolutionary investigations, and radiations within archipelagos are readily interpreted as supporting the conventional view of allopatric ...
Roger S Thorpe +2 more
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Genomic signatures of host-associated divergence and adaptation in a coral-eating snail, Coralliophila violacea (Kiener, 1836). [PDF]
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
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Background Divergent genetic responses to the same environmental pressures may lead sympatric ecological speciation possible. Such speciation process possibly explains rapid sympatric speciation of island species.
Bing-Hong Huang +5 more
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Concepts and definitions of species have been debated by generations of biologists and remain controversial. Microbes pose a particular challenge because of their genetic diversity, asexual reproduction, and often promiscuous horizontal gene transfer ...
B Jesse Shapiro +2 more
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20 questions on Adaptive Dynamics [PDF]
Adaptive Dynamics is an approach to studying evolutionary change when fitness is density or frequency dependent. Modern papers identifying themselves as using this approach first appeared in the 1990s, and have greatly increased up to the present ...
Abrams +91 more
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