ArticleProceedings. Biological sciences2004
Thermal selection of PGM allozymes in newly founded populations of the thermotolerant vent polychaete Alvinella pompejana.
Article in Proceedings. Biological sciences, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Balanced Polymorphism at theGenes · 2022Article
- Current hypotheses to explain genetic chaos under the sea.Current zoology · 2016Article
- Detection and characterisation of mutations responsible for allele-specific protein thermostabilities at the Mn-superoxide dismutase gene in the deep-sea hydrothermal vent polychaete Alvinella pompejana.Journal of molecular evolution · 2013Article
- Proteome adaptation to high temperatures in the ectothermic hydrothermal vent Pompeii worm.PloS one · 2012Article
- Insights into metazoan evolution from Alvinella pompejana cDNAs.BMC genomics · 2010Article
- Characterization of a Y-Family DNA Polymerase eta from the Eukaryotic Thermophile Alvinella pompejana.Journal of nucleic acids · 2010Article
- 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
- Global depression in gene expression as a response to rapid thermal changes in vent mussels.Proceedings. Biological sciences · 2009Article
- Geographic distributions of Idh-1 alleles in a cricket are linked to differential enzyme kinetic performance across thermal environments.BMC evolutionary biology · 2009Article
- Superoxide dismutase from the eukaryotic thermophile Alvinella pompejana: structures, stability, mechanism, and insights into amyotrophic lateral sclerosis.Journal of molecular biology · 2009Article
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6 authors.
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Abstract
Alvinella pompejana lives on the top of chimneys at deep-sea hydrothermal vents of the East Pacific Rise. It is thought to be one of the most thermotolerant and eurythermal metazoans. Our experimental approach combines methods of population genetics and biochemistry, considering temperature as a potential selective factor. Phosphoglucomutase (Pgm-1 locus) is one of the most polymorphic loci of A. pompejana and exhibits four alleles, from which alleles 90 and 100 dominate with frequencies of approximately 0.5 in populations. Results from previous studies suggested that allele 90 might be more thermostable than allele 100. Significant genetic differentiation was found by comparing contrasted microhabitats, especially the young, still hot, versus older and colder chimneys, with allele 90 being at highest frequency on young chimneys. Moreover the frequency of allele 90 was positively correlated with mean temperature at the opening of Alvinella tubes. In parallel, thermostability and thermal optimum experiments demonstrated that allele 90 is more thermostable and more active at higher temperatures than allele 100. This dataset supports an additive model of diversifying selection in which allele 90 is favoured on young hot chimneys but counterbalanced over the whole metapopulation by the dynamics of the vent ecosystem.
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