Habitat-related allelic variation revealed by an anonymous DNA locus in reef-dwelling Turbinaria ornata (Fucales, Phaeophyceae)

Audrey Rohfritsch 1 Claude Payri 2 Valérie Stiger-Pouvreau 3 François Bonhomme 1
1 ISEM - Institut des Sciences de l'Evolution de Montpellier
2 SAE - Systématique, adaptation, évolution
3 LEBHAM - Laboratoire d'Écophysiologie et de Biotechnologie des Halophytes et des Algues Marines
Abstract : We assessed genetic polymorphism of a bi-allelic anonymous DNA locus in otherwise highly homogeneous Turbinaria ornata populations in French Polynesia, Hawaii, Solomon, Wallis and La Réunion Islands. Large heterozygote deficiencies occurred in almost all populations, which may be related to possible self-fertilisation and short dispersal distance of zygotes. There was a high genetic differentiation among samples (Fst=0.5269***) and this was correlated with a gradient of hydrodynamic conditions prevailing on French Polynesian coral reefs. This correlation is tentatively associated with balancing selection acting on, or on the vicinity of, this anonymous DNA locus.
Keywords : anonymous DNA locus balancing selection French Polynesia hydrodynamics Turbinaria ornata
Type de document :
Article dans une revue
Botanica Marina, De Gruyter, 2010, 53 (2), pp.189-192. 〈10.1515/BOT.2010.021〉
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http://hal.univ-brest.fr/hal-00635553
Contributeur : Catherine Bertignac <>
Soumis le : mardi 25 octobre 2011 - 15:12:37
Dernière modification le : mercredi 21 mars 2018 - 18:57:07

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UNIV-BREST | IUEM | SAE | UPMC | THESES_IUEM | AGROPOLIS | EVOLUTION_PARIS_SEINE | IBPS | B3ESTE | UNIV-MONTPELLIER

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Audrey Rohfritsch, Claude Payri, Valérie Stiger-Pouvreau, François Bonhomme. Habitat-related allelic variation revealed by an anonymous DNA locus in reef-dwelling Turbinaria ornata (Fucales, Phaeophyceae). Botanica Marina, De Gruyter, 2010, 53 (2), pp.189-192. 〈10.1515/BOT.2010.021〉. 〈hal-00635553〉

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