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      Is There a Genetic Paradox of Biological Invasion?

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      Annual Review of Ecology, Evolution, and Systematics
      Annual Reviews

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          The hitch-hiking effect of a favourable gene

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            The rate and molecular spectrum of spontaneous mutations in Arabidopsis thaliana.

            To take complete advantage of information on within-species polymorphism and divergence from close relatives, one needs to know the rate and the molecular spectrum of spontaneous mutations. To this end, we have searched for de novo spontaneous mutations in the complete nuclear genomes of five Arabidopsis thaliana mutation accumulation lines that had been maintained by single-seed descent for 30 generations. We identified and validated 99 base substitutions and 17 small and large insertions and deletions. Our results imply a spontaneous mutation rate of 7 x 10(-9) base substitutions per site per generation, the majority of which are G:C-->A:T transitions. We explain this very biased spectrum of base substitution mutations as a result of two main processes: deamination of methylated cytosines and ultraviolet light-induced mutagenesis.
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              The Bottleneck Effect and Genetic Variability in Populations

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                Author and article information

                Journal
                Annual Review of Ecology, Evolution, and Systematics
                Annu. Rev. Ecol. Evol. Syst.
                Annual Reviews
                1543-592X
                1545-2069
                November 2016
                November 2016
                : 47
                : 1
                : 51-72
                Article
                10.1146/annurev-ecolsys-121415-032116
                70600433-7e53-40c7-9920-b3d48a9ccb6f
                © 2016
                History

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