ArticleGenetics2009
Nucleotide polymorphism and within-gene recombination in Daphnia magna and D. pulex, two cyclical parthenogens.
Article in Genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Population-Genomic Analysis Identifies a Low Rate of Global Adaptive Fixation in the Proteins of the Cyclical Parthenogen Daphnia magna.Molecular biology and evolution · 2022Article
- Engines of change: Transposable element mutation rates are high and variable within Daphnia magna.PLoS genetics · 2021Article
- Balancing Selection for Pathogen Resistance Reveals an Intercontinental Signature of Red Queen Coevolution.Molecular biology and evolution · 2021Article
- High and Highly Variable Spontaneous Mutation Rates in Daphnia.Molecular biology and evolution · 2020Article
- Intraspecific Variation in Microsatellite Mutation Profiles in Daphnia magna.Molecular biology and evolution · 2019Article
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- Pattern of DNA Methylation in Daphnia: Evolutionary Perspective.Genome biology and evolution · 2018Article
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- Article
- Gene Body Methylation Patterns in Daphnia Are Associated with Gene Family Size.Genome biology and evolution · 2016Article
- Mitochondrial capture misleads about ecological speciation in the Daphnia pulex complex.PloS one · 2013Article
- Interspecific differences between D. pulex and D. magna in tolerance to cyanobacteria with protease inhibitors.PloS one · 2013Article
- The spread of a transposon insertion in Rec8 is associated with obligate asexuality in Daphnia.Proceedings of the National Academy of Sciences of the United States of America · 2012Article
- Single nucleotide polymorphism discovery from expressed sequence tags in the waterflea Daphnia magna.BMC genomics · 2011Article
- Mesozoic fossils (>145 Mya) suggest the antiquity of the subgenera of Daphnia and their coevolution with chaoborid predators.BMC evolutionary biology · 2011Article
- Population genetics of duplicated alternatively spliced exons of the Dscam gene in Daphnia and Drosophila.PloS one · 2011Article
- The first-generation Daphnia magna linkage map.BMC genomics · 2010Article
- An ancient immunity gene duplication in Daphnia magna: RNA expression and sequence analysis of two nitric oxide synthase genes.Developmental and comparative immunology · 2009Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Theory predicts that partially asexual organisms may make the "best of both worlds": for the most part, they avoid the costs of sexual reproduction, while still benefiting from an enhanced efficiency of selection compared to obligately asexual organisms. There is, however, little empirical data on partially asexual organisms to test this prediction. Here we examine patterns of nucleotide diversity at eight nuclear loci in continentwide samples of two species of cyclically parthenogenetic Daphnia to assess the effect of partial asexual reproduction on effective population size and amount of recombination. Both species have high nucleotide diversities and show abundant evidence for recombination, yielding large estimates of effective population sizes (300,000-600,000). This suggests that selection will act efficiently even on mutations with small selection coefficients. Divergence between the two species is less than one-tenth of previous estimates, which were derived using a mitochondrial molecular clock. As the two species investigated are among the most distantly related species of the genus, this suggests that the genus Daphnia may be considerably younger than previously thought. Daphnia has recently received increased attention because it is being developed as a model organism for ecological and evolutionary genomics. Our results confirm the attractiveness of Daphnia as a model organism, because the high nucleotide diversity and low linkage disequilibrium suggest that fine-scale mapping of genes affecting phenotypes through association studies should be feasible.
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