Abstract:
:The spatial genetic structure of the neotropical, clustered tree species Vouacapoua americana (Aublet) was studied in two natural forest stands (Paracou and Nouragues) in French Guiana. Using eight microsatellite loci, V. americana is characterized by a marked genetic structure at small spatial distances (under 30-60 m), in agreement with the limited seed dispersal by rodent species. Gene flow through pollen is also shown to be mainly restricted to less than 100 m. This result suggests that most pollination events (mediated through small insects) are probably limited to within-patches of individuals, which might explain the high genetic differentiation among patches (F(ST) = 0.11) separated by less than 2 km. We also assume that stronger genetic structure in Paracou is likely to be due to lower seed dispersal by rodents, large spatial distances separating patches, or a recent recolonization event.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Dutech C,Seiter J,Petronelli P,Joly HI,Jarne Pdoi
10.1046/j.1365-294x.2002.01475.xsubject
Has Abstractpub_date
2002-04-01 00:00:00pages
725-38issue
4eissn
0962-1083issn
1365-294Xpii
1475journal_volume
11pub_type
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