ArticlePloS one2009
Speciation in the deep sea: multi-locus analysis of divergence and gene flow between two hybridizing species of hydrothermal vent mussels.
Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Conservation implications of low contemporary connectivity along the Mid-Atlantic Ridge in hydrothermal vent gastropods.Conservation biology : the journal of the Society for Conservation Biology · 2026Article
- Comparative Population Genomics Unveils Congruent Secondary Suture Zone in Southwest Pacific Hydrothermal Vents.Molecular biology and evolution · 2025Article
- Genomic patterns of divergence in the early and late steps of speciation of the deep-sea vent thermophilic worms of the genus Alvinella.BMC ecology and evolution · 2022Article
- Genomic divergence landscape in recurrently hybridizingEvolution letters · 2021Article
- Population genetic structure of the deep-sea musselEvolutionary applications · 2018Article
- Mitochondrial introgression and interspecies recombination in theIMA fungus · 2018Article
- Population genetic structure in Sabatieria (Nematoda) reveals intermediary gene flow and admixture between distant cold seeps from the Mediterranean Sea.BMC evolutionary biology · 2017Article
- Widespread introgression in deep-sea hydrothermal vent mussels.BMC evolutionary biology · 2017Article
- Species distribution and population connectivity of deep-sea mussels at hydrocarbon seeps in the Gulf of Mexico.PloS one · 2015Article
- Adaptive radiation of chemosymbiotic deep-sea mussels.Proceedings. Biological sciences · 2013Article
- A hybrid zone between Bathymodiolus mussel lineages from eastern Pacific hydrothermal vents.BMC evolutionary biology · 2013Article
- A new barrier to dispersal trapped old genetic clines that escaped the Easter Microplate tension zone of the Pacific vent mussels.PloS one · 2013Article
- Multilocus analysis of divergence and introgression in sympatric and allopatric sibling species of the Lutzomyia longipalpis complex in Brazil.PLoS neglected tropical diseases · 2013Article
- Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.PloS one · 2013Article
- Article
- Desmophyllum dianthus (Esper, 1794) in the scleractinian phylogeny and its intraspecific diversity.PloS one · 2012Article
- Genetic connectivity between north and south Mid-Atlantic Ridge chemosynthetic bivalves and their symbionts.PloS one · 2012Article
- Determining gene flow and the influence of selection across the equatorial barrier of the East Pacific Rise in the tube-dwelling polychaete Alvinella pompejana.BMC evolutionary biology · 2010Article
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5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundReconstructing the history of divergence and gene flow between closely-related organisms has long been a difficult task of evolutionary genetics. Recently, new approaches based on the coalescence theory have been developed to test the existence of gene flow during the process of divergence. The deep sea is a motivating place to apply these new approaches. Differentiation by adaptation can be driven by the heterogeneity of the hydrothermal environment while populations should not have been strongly perturbed by climatic oscillations, the main cause of geographic isolation at the surface. METHODOLOGY/PRINCIPAL FINDING: Samples of DNA sequences were obtained for seven nuclear loci and a mitochondrial locus in order to conduct a multi-locus analysis of divergence and gene flow between two closely related and hybridizing species of hydrothermal vent mussels, Bathymodiolus azoricus and B. puteoserpentis. The analysis revealed that (i) the two species have started to diverge approximately 0.760 million years ago, (ii) the B. azoricus population size was 2 to 5 time greater than the B. puteoserpentis and the ancestral population and (iii) gene flow between the two species occurred over the complete species range and was mainly asymmetric, at least for the chromosomal regions studied. CONCLUSIONS/SIGNIFICANCE: A long history of gene flow has been detected between the two Bathymodiolus species. However, it proved very difficult to conclusively distinguish secondary introgression from ongoing parapatric differentiation. As powerful as coalescence approaches could be, we are left by the fact that natural populations often deviates from standard assumptions of the underlying model. A more direct observation of the history of recombination at one of the seven loci studied suggests an initial period of allopatric differentiation during which recombination was blocked between lineages. Even in the deep sea, geographic isolation may well be a crucial promoter of speciation.
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