Genetic diversity, clonality and connectivity in the scleractinian coral Pocillopora damicornis: a multi-scale analysis in an insular, fragmented reef system
|Author(s)||Adjeroud Mehdi1, 2, Guerecheau Aurelie1, Vidal-Dupiol Jeremie3, 4, Flot Jean-Francois, Arnaud-Haond Sophie, Bonhomme Francois|
|Affiliation(s)||1 : Inst Rech Dev, Unite 227, CoReUs2, Noumea 98848, New Caledonia.
2 : CORAIL, Lab Excellence, F-66860 Perpignan, France.
3 : Univ Perpignan, CNRS, UMR 5244, F-66860 Perpignan, France.
4 : Univ Perpignan, UMR 5244, F-66860 Perpignan, France.
5 : Max Planck Inst Dynam & Self Org, D-37073 Gottingen, Germany.
6 : Inst Francais Rech Exploitat Mer, UMR 212, F-34203 Sete, France.
7 : Univ Montpellier 2, Inst Sci Evolut, CNRS, UMR 5554, F-34095 Montpellier 5, France.
|Source||Marine Biology (0025-3162) (Springer), 2014-03 , Vol. 161 , N. 3 , P. 531-541|
|WOS© Times Cited||29|
|Abstract||Clonality and genetic structure of the coral Pocillopora damicornis sensu lato were assessed using five microsatellites in 12 populations from four islands of the Society Archipelago (French Polynesia) sampled in June 2008. The 427 analysed specimens fell into 132 multilocus genotypes (MLGs), suggesting that asexual reproduction plays an important role in the maintenance of these populations. A haploweb analysis of ITS2 sequences of each MLG was consistent with all of them being conspecific. Genetic differentiation was detected both between and within islands, but when a single sample per MLG was included in the analyses, the populations turned out to be nearly panmictic. These observations provide further evidence of the marked variability in reproductive strategies and genetic structure of P. damicornis throughout its geographic range; comparison with results previously obtained for the congeneric species Pocillopora meandrina underlines the importance of life history traits in shaping the genetic structure of coral populations|