ArticleProceedings. Biological sciences2014
Specialist versus generalist life histories and nucleotide diversity in Caenorhabditis nematodes.
Article in Proceedings. Biological sciences, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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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.
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Who cites it
33 citing papers in PubMed, 74 citations in OpenAlex.
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- Drivers of Population Genetic Diversity Across Ecologically Distinct Species in a Cape Fynbos Grass Clade.Molecular ecology · 2026Article
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- Phylogenomic timetree-calibrated speciation clocks for Caenorhabditis nematodes reveal slow but disproportionate accumulation of post-zygotic reproductive isolation.PLoS genetics · 2025Article
- The influence of changing fire regimes on specialized plant-animal interactions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Variation in the fitness impact of translationally optimal codons among animals.Genome research · 2025Article
- Generalist vs. specialist strategy shapes microbiomes in blood feeding parasiteFrontiers in microbiology · 2025Article
- Mating systems and recombination landscape strongly shape genetic diversity and selection in wheat relatives.Evolution letters · 2024Article
- Evolutionary genomics of Leishmania braziliensis across the neotropical realm.Communications biology · 2024Article
- Life history in Caenorhabditis elegans: from molecular genetics to evolutionary ecology.Genetics · 2024Review
- Drift drives the evolution of chromosome number I: The impact of trait transitions on genome evolution in Coleoptera.The Journal of heredity · 2024Article
- Patterns of Genomic Diversity in a Fig-Associated Close Relative of Caenorhabditis elegans.Genome biology and evolution · 2024Article
- Contrasting patterns of genetic and phenotypic divergence of two sympatric congeners,Frontiers in plant science · 2023Article
- Shortened lifespan induced by a high-glucose diet is associated with intestinal immune dysfunction in Drosophila sechellia.The Journal of experimental biology · 2022Article
- Article
- Phylogeography of the parasitic mite Laelaps agilis in Western Palearctic shows lineages lacking host specificity but possessing different demographic histories.BMC zoology · 2022Article
- Review
- Relaxed selection underlies genome erosion in socially parasitic ant species.Nature communications · 2021Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
Species with broad ecological amplitudes with respect to a key focal resource, niche generalists, should maintain larger and more connected populations than niche specialists, leading to the prediction that nucleotide diversity will be lower and more subdivided in specialists relative to their generalist relatives. This logic describes the specialist-generalist variation hypothesis (SGVH). Some outbreeding species of Caenorhabditis nematodes use a variety of invertebrate dispersal vectors and have high molecular diversity. By contrast, Caenorhabditis japonica lives in a strict association and synchronized life cycle with its dispersal host, the shield bug Parastrachia japonensis, itself a diet specialist. Here, we characterize sequence variation for 20 nuclear loci to investigate how C. japonica's life history shapes nucleotide diversity. We find that C. japonica has more than threefold lower polymorphism than other outbreeding Caenorhabditis species, but that local populations are not genetically disconnected. Coupled with its restricted range, we propose that its specialist host association contributes to a smaller effective population size and lower genetic variation than host generalist Caenorhabditis species with outbreeding reproductive modes. A literature survey of diverse organisms provides broader support for the SGVH. These findings encourage further testing of ecological and evolutionary hypotheses with comparative population genetics in Caenorhabditis and other taxa.
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