ArticleHeredity2014
Assessing patterns of hybridization between North Atlantic eels using diagnostic single-nucleotide polymorphisms.
Article in Heredity, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 71 citations in OpenAlex.
- Occurrence of Natural Interspecific Hybrids in the Pufferfish, GenusFood safety (Tokyo, Japan) · 2026Article
- Genomic Footprints of Hybridisation in North Atlantic Eels (Anguilla anguilla and A. rostrata).Molecular ecology · 2025Article
- Genomic Architecture of the Clownfish Hybrid Amphiprion leucokranos.Genome biology and evolution · 2025Article
- Hybridization and adaptive introgression in a marine invasive species in native habitats.iScience · 2023Article
- Panmixia in the American eel extends to its tropical range of distribution: Biological implications and policymaking challenges.Evolutionary applications · 2023Article
- Aquaporin expression and cholesterol content in eel swimbladder tissue.Journal of fish biology · 2022Article
- Spontaneous hybridization and introgression between walleye (Evolutionary applications · 2021Article
- Review
- Mobile Elements in Ray-Finned Fish Genomes.Life (Basel, Switzerland) · 2020Review
- Variable outcomes of hybridization between decliningEvolutionary applications · 2020Article
- Stable species boundaries despite ten million years of hybridization in tropical eels.Nature communications · 2020Article
- High genetic diversity and lack of pronounced population structure in five species of sympatric Pacific eels.Fisheries management and ecology · 2019Article
- Temporal stability and assignment power of adaptively divergent genomic regions between herring (Ecology and evolution · 2019Article
- Exploring the phylogeography of a hexaploid freshwater fish by RAD sequencing.Ecology and evolution · 2018Article
- Characterization of hybridization within a secondary contact region of the inshore fish, Bostrychus sinensis, in the East China Sea.Heredity · 2018Article
- Assessing pre- and post-zygotic barriers between North Atlantic eels (Anguilla anguilla and A. rostrata).Heredity · 2017Article
- A SNP-Enabled Assessment of Genetic Diversity, Evolutionary Relationships and the Identification of Candidate Genes in Chrysanthemum.Genome biology and evolution · 2016Article
- Does asymmetric gene flow among matrilines maintain the evolutionary potential of the European eel?Ecology and evolution · 2016Article
- Signatures of natural selection between life cycle stages separated by metamorphosis in European eel.BMC genomics · 2015Article
- Highly variable reproductive isolation among pairs of Catostomus species.Molecular ecology · 2015Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 7 institutions in 6 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The two North Atlantic eel species, the European eel (Anguilla anguilla) and the American eel (Anguilla rostrata), spawn in partial sympatry in the Sargasso Sea, providing ample opportunity to interbreed. In this study, we used a RAD (Restriction site Associated DNA) sequencing approach to identify species-specific diagnostic single-nucleotide polymorphisms (SNPs) and design a low-density array that combined with screening of a diagnostic mitochondrial DNA marker. Eels from Iceland (N=159) and from the neighboring Faroe Islands (N=29) were genotyped, along with 94 larvae (49 European and 45 American eel) collected in the Sargasso Sea. Our SNP survey showed that the majority of Icelandic eels are pure European eels but there is also an important contribution of individuals of admixed ancestry (10.7%). Although most of the hybrids were identified as F1 hybrids from European eel female × American eel male crosses, backcrosses were also detected, including a first-generation backcross (F1 hybrid × pure European eel) and three individuals identified as second-generation backcrosses originating from American eel × F1 hybrid backcrosses interbreeding with pure European eels. In comparison, no hybrids were observed in the Faroe Islands, the closest bodies of land to Iceland. It is possible that hybrids show an intermediate migratory behaviour between the two parental species that ultimately brings hybrid larvae to the shores of Iceland, situated roughly halfway between the Sargasso Sea and Europe. Only two hybrids were observed among Sargasso Sea larvae, both backcrosses, but no F1 hybrids, that points to temporal variation in the occurrence of hybridization.
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