ArticleGenetics2009
Patterns of intraspecific DNA variation in the Daphnia nuclear genome.
Article in Genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
23 citing papers in PubMed.
- Evolutionary innovation through fusion of sequences from across the tree of life.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Discovery and Evaluation of Cadmium-Adapted Daphnia pulex Genotypes in a Region of Historical Mining Reveals Adaptation Protects the Germline From Cadmium-Induced Mutations.Molecular ecology · 2026Article
- Trans-Specific Polymorphisms Between Cryptic Daphnia Species Affect Fitness and Behavior.Molecular ecology · 2025Article
- Balancing selection and the functional effects of shared polymorphism in crypticbioRxiv : the preprint server for biology · 2024Article
- Transcriptomics and the origin of obligate parthenogenesis.Heredity · 2023Article
- The Transcriptomic Signature of Cyclical Parthenogenesis.Genome biology and evolution · 2023Article
- The transcriptomic signature of obligate parthenogenesis.Heredity · 2022Article
- The rapid, mass invasion of New Zealand by North AmericanLimnology and oceanography · 2021Article
- The life-history fitness of FInvertebrate biology : a quarterly journal of the American Microscopical Society and the Division of Invertebrate Zoology/ASZ · 2021Article
- Adaptive Divergence of Meiotic Recombination Rate in Ecological Speciation.Genome biology and evolution · 2020Article
- The evolution of reproductive isolation in Daphnia.BMC evolutionary biology · 2019Article
- Genetic control of male production inProceedings of the National Academy of Sciences of the United States of America · 2019Article
- A New Reference Genome Assembly for the MicrocrustaceanG3 (Bethesda, Md.) · 2017Article
- Article
- Distribution of the DNA transposon family, Pokey in the Daphnia pulex species complex.Mobile DNA · 2016Article
- Article
- A Male-Specific Genetic Map of the Microcrustacean Daphnia pulex Based on Single-Sperm Whole-Genome Sequencing.Genetics · 2015Article
- Relationship between heat shock protein 70 expression and life span in Daphnia.Mechanisms of ageing and development · 2014Article
- Evolution of a transposon in Daphnia hybrid genomes.Mobile DNA · 2013Article
- Mitochondrial capture misleads about ecological speciation in the Daphnia pulex complex.PloS one · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
Abstract
Understanding nucleotide variation in natural populations has been a subject of great interest for decades. However, many taxonomic groups, especially those with atypical life history attributes remain unstudied, and Drosophila is the only arthropod genus for which DNA polymorphism data are presently abundant. As a result of the recent release of the complete genome sequence and a wide variety of new genomic resources, the Daphnia system is quickly becoming a promising new avenue for expanding our knowledge of nucleotide variation in natural populations. Here, we examine nucleotide variation in six protein-coding loci for Daphnia pulex and its congeners with particular emphasis on D. pulicaria, the closest extant relative of D. pulex. Levels of synonymous intraspecific variation, pi(s), averaged 0.0136 for species in the Daphnia genus, and are slightly lower than most prior estimates in invertebrates. Tests of neutrality indicated that segregating variation conforms to neutral model expectations for the loci that we examined in most species, while K(a)/K(s) ratios revealed strong purifying selection. Using a full maximum-likelihood coalescent-based method, the ratio of the recombination rate to the mutation rate (c/u), averaged 0.5255 for species of the Daphnia genus. Lastly, a divergence population-genetics approach was used to investigate gene flow and divergence between D. pulex and D. pulicaria.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.