Open AccessFine‐scale spatial genetic structure of eight tropical tree species as analysed by RAPDs
Author(s) -
Degen Bernd,
Caron Henri,
Bandou Eric,
Maggia Laurent,
Chevallier Marie Héléne,
Leveau Antoine,
Kremer Antoine
Publication year - 2001
Publication title -
heredity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.441
H-Index - 118
eISSN - 1365-2540
pISSN - 0018-067X
DOI - 10.1046/j.1365-2540.2001.00942.x
Subject(s) - genetic structure , biology , rapd , spatial distribution , biological dispersal , seed dispersal , spatial ecology , pollen , ecology , temperate climate , phenology , genetic variation , genetic diversity , geography , population , biochemistry , demography , remote sensing , sociology , gene
The fine‐scale spatial genetic structure of eight tropical tree species ( Chrysophyllum sanguinolentum, Carapa procera, Dicorynia guianensis, Eperua grandiflora, Moronobea coccinea, Symphonia globulifera, Virola michelii, Vouacapoua americana ) was studied in populations that were part of a silvicultural trial in French Guiana. The species analysed have different spatial distribution, sexual system, pollen and seed dispersal agents, flowering phenology and environmental demands. The spatial position of trees and a RAPD data set for each species were combined using a multivariate genetic distance method to estimate spatial genetic structure. A significant spatial genetic structure was found for four of the eight species. In contrast to most observations in temperate forests, where spatial structure is not usually detected at distances greater than 50 m, significant genetic structure was found at distances up to 300 m. The relationships between spatial genetic structure and life history characteristics are discussed.