Microsatellites in the tree Foetidia mauritiana (Lecythidaceae) and utility in other Foetidia taxa from the Mascarene Islands.
OBJECTIVE
Polymorphic markers were required for a native tree of the Mascarene Islands, Foetidia mauritiana (Lecythidaceae), to investigate the effects of fragmentation of lowland tropical habitats on tree mating systems and on gene flow.


RESULTS
Using microsatellite enrichment and next-generation sequencing, we identified 13 microsatellite loci (dinucleotide repeats). They were highly polymorphic in 121 trees sampled in the largest three populations on Réunion, revealing 2-17 different alleles per locus. Furthermore, they were found to be polymorphic in conspecific populations on Mauritius and in F. rodriguesiana from Rodrigues.


CONCLUSIONS
These results indicate the utility of these markers to investigate genetic diversity, mating systems, and gene flow in a genus native to the biodiversity hotspot of Madagascar and the Indian Ocean islands.
CIRAD, UMR PVBMT, F-97410 Saint-Pierre, La Réunion, France.
Florent
F
Martos
CIRAD, UMR PVBMT, F-97410 Saint-Pierre, La Réunion, France.
Gérard
G
Lebreton
CIRAD, UMR PVBMT, F-97410 Saint-Pierre, La Réunion, France.
Eric
E
Rivière
Université de la Réunion, UMR PVBMT, F-97400 Saint-Denis, La Réunion, France.
Laurence
L
Humeau
CIRAD, UMR PVBMT, F-97410 Saint-Pierre, La Réunion, France.
Marie-Hélène
MH
Chevallier
Foetidia mauritiana; Lecythidaceae; Madagascar; ecological restoration; island biotas; tropical dry forests