ArticleBMC evolutionary biology2013
Species richness, distribution and genetic diversity of Caenorhabditis nematodes in a remote tropical rainforest.
Article in BMC evolutionary biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.
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52 citing papers in PubMed, 107 citations in OpenAlex.
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- Allelic Variation at tRNA Genes in Three Nematode Species Indicates Mutation Load Despite Strong Purifying Selection.Genome biology and evolution · 2026Article
- Caenorhabditis elegans as an experimental model for resilience-boosting microbiota interventions in nonmodel ectotherms.FEMS microbiology reviews · 2026Review
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- Divergence in neuronal signaling pathways despite conserved neuronal identity among Caenorhabditis species.Current biology : CB · 2025Article
- Conservative evolution of genetic and genomic features inbioRxiv : the preprint server for biology · 2025Article
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- Complete Mitochondrial Genome with Phylogenetic Analyses of a NewZoological studies · 2025Article
- Reproductive Interference Alters Species Coexistence in Nematodes due to Asymmetric Sperm-Induced Harm.Ecology letters · 2025Article
- Fecundities of HawaiianmicroPublication biology · 2025Article
- CaeNDR, the Caenorhabditis Natural Diversity Resource.Nucleic acids research · 2024Article
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- Temperature-dependent Small RNA Expression Depends on Wild Genetic Backgrounds of Caenorhabditis briggsae.Molecular biology and evolution · 2022Article
- Developing an empirical model for spillover and emergence: Orsay virus host range inProceedings. Biological sciences · 2022Article
- RNA Fluorescence in situ Hybridization (FISH) to Visualize Microbial Colonization and Infection in Caenorhabditis elegans Intestines.Journal of visualized experiments : JoVE · 2022Article
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Authors and funding
8 authors at 5 institutions in 3 countries.
Funding
Abstract
backgroundIn stark contrast to the wealth of detail about C. elegans developmental biology and molecular genetics, biologists lack basic data for understanding the abundance and distribution of Caenorhabditis species in natural areas that are unperturbed by human influence.
methodsHere we report the analysis of dense sampling from a small, remote site in the Amazonian rain forest of the Nouragues Natural Reserve in French Guiana.
resultsSampling of rotting fruits and flowers revealed proliferating populations of Caenorhabditis, with up to three different species co-occurring within a single substrate sample, indicating remarkable overlap of local microhabitats. We isolated six species, representing the highest local species richness for Caenorhabditis encountered to date, including both tropically cosmopolitan and geographically restricted species not previously isolated elsewhere. We also documented the structure of within-species molecular diversity at multiple spatial scales, focusing on 57 C. briggsae isolates from French Guiana. Two distinct genetic subgroups co-occur even within a single fruit. However, the structure of C. briggsae population genetic diversity in French Guiana does not result from strong local patterning but instead presents a microcosm of global patterns of differentiation. We further integrate our observations with new data from nearly 50 additional recently collected C. briggsae isolates from both tropical and temperate regions of the world to re-evaluate local and global patterns of intraspecific diversity, providing the most comprehensive analysis to date for C. briggsae population structure across multiple spatial scales.
conclusionsThe abundance and species richness of Caenorhabditis nematodes is high in a Neotropical rainforest habitat that is subject to minimal human interference. Microhabitat preferences overlap for different local species, although global distributions include both cosmopolitan and geographically restricted groups. Local samples for the cosmopolitan C. briggsae mirror its pan-tropical patterns of intraspecific polymorphism. It remains an important challenge to decipher what drives Caenorhabditis distributions and diversity within and between species.
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