ArticleProceedings of the National Academy of Sciences of the United States of America2007
Cryptic speciation in a model invertebrate chordate.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 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
67 citing papers in PubMed.
- Dynamic miRNA-host gene co-expression and functional regulation in response to salinity fluctuations during biological invasions.Marine life science & technology · 2026Article
- Article
- A simple inland culture system provides insights into ascidian post-embryonic developmental physiology.Open biology · 2025Article
- Extreme genome scrambling in marine planktonicGenome research · 2024Article
- Heterogeneity in maternal mRNAs within clutches of eggs in response to thermal stress during the embryonic stage.BMC ecology and evolution · 2024Article
- An organic extract from ascidianFrontiers in chemistry · 2024Article
- Transcriptomic and Bioinformatic Analyses Identifying a Central Mif-Cop9-Nf-kB Signaling Network in Innate Immunity Response ofInternational journal of molecular sciences · 2023Article
- Co-expression network analysis of environmental canalization in the ascidian Ciona.BMC ecology and evolution · 2022Article
- Methods for the Study of Apical Constriction During Ascidian Gastrulation.Methods in molecular biology (Clifton, N.J.) · 2022Article
- Transcriptomic Analyses Reveal 2 and 4 Family Members of Cytochromes P450 (CYP) Involved in LPS Inflammatory Response in Pharynx ofInternational journal of molecular sciences · 2021Article
- Chromosomal Inversion Polymorphisms in Two Sympatric Ascidian Lineages.Genome biology and evolution · 2021Article
- The gene regulatory system for specifying germ layers in early embryos of the simple chordate.Science advances · 2021Article
- Integrative taxonomy resolves species identities within the Macrobiotus pallarii complex (Eutardigrada: Macrobiotidae).Zoological letters · 2021Article
- ceRNA Network Regulation of TGF-β, WNT, FOXO, Hedgehog Pathways in the Pharynx ofInternational journal of molecular sciences · 2021Article
- Brain Sensory Organs of the AscidianFrontiers in cell and developmental biology · 2021Review
- Reflections on the Use of an Invertebrate Chordate Model System for Studies of Gut Microbial Immune Interactions.Frontiers in immunology · 2021Review
- Culture-Dependent Microbiome of theMicroorganisms · 2020Article
- The ontology of the anatomy and development of the solitary ascidian Ciona: the swimming larva and its metamorphosis.Scientific reports · 2020Article
- Asymmetric Fitness of Second-Generation Interspecific Hybrids BetweenG3 (Bethesda, Md.) · 2020Article
- Hidden diversity in Antarctica: Molecular and morphological evidence of two different species within one of the most conspicuous ascidian species.Ecology and evolution · 2020Article
7 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
We applied independent species concepts to clarify the phylogeographic structure of the ascidian Ciona intestinalis, a powerful model system in chordate biology and for comparative genomic studies. Intensive research with this marine invertebrate is based on the assumption that natural populations globally belong to a single species. Therefore, understanding the true taxonomic classification may have implications for experimental design and data management. Phylogenies inferred from mitochondrial and nuclear DNA markers accredit the existence of two cryptic species: C. intestinalis sp. A, genetically homogeneous, distributed in the Mediterranean, northeast Atlantic, and Pacific, and C. intestinalis sp. B, geographically structured and encountered in the North Atlantic. Species-level divergence is further entailed by cross-breeding estimates. C. intestinalis A and B from allopatric populations cross-fertilize, but hybrids remain infertile because of defective gametogenesis. Although anatomy illustrates an overall interspecific similarity lacking in diagnostic features, we provide consistent tools for in-field and in-laboratory species discrimination. Finding of two cryptic taxa in C. intestinalis raises interest in a new tunicate genome as a gateway to studies in speciation and ecological adaptation of chordates.
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