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<title lang=it>Fine-scale genetic structure and gene dispersal inferences in 10 Neotropical tree species</title>
<creator>Hardy, Olivier J.</creator>
<creator>Maggia, Laurent</creator>
<creator>Bandou, Eric</creator>
<creator>Breyne, Peter</creator>
<creator>Caron, Henri</creator>
<creator>Chevallier, Marie-Hélène</creator>
<creator>Doligez, Agnes</creator>
<creator>Dutech, Christian Cyril</creator>
<creator>Kremer, Antoine</creator>
<creator>Latouche-Hallé, Céline</creator>
<creator>Troispoux, Valérie</creator>
<creator>Veron, Vincent</creator>
<creator>Degen, Bernd</creator>
<contributor>Service d'Eco-Ethologie Evolutive ; Université Libre de Bruxelles [Bruxelles] (ULB)</contributor>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>UMR INRA / Univ. Bordeaux 1 : Biodiversité, Gènes et Ecosystèmes ; Institut National de la Recherche Agronomique (INRA)</contributor>
<contributor>Départment Forêt, Centre d'Ecologie Fonctionnelle et Evolutive ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement</contributor>
<contributor>UMR INRA / ENSAM / IRD : Diversité et Génome des Plantes Cultivées ; Institut National de la Recherche Agronomique (INRA)</contributor>
<contributor>Institute of Forest Genetics and Forest Tree Breedings ; Federal Research Centre for Forestry and Forest Products</contributor>
<source>ISSN: 0962-1083</source>
<source>EISSN: 1365-294X</source>
<source>Molecular Ecology</source>
<publisher>Wiley</publisher>
<identifier>hal-01031603</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01031603</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01031603</source>
<source>Molecular Ecology, Wiley, 2006, 15 (2), pp.559-571. 〈10.1111/j.1365-294X.2005.02785.x〉</source>
<identifier>DOI : 10.1111/j.1365-294X.2005.02785.x</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-294X.2005.02785.x</relation>
<language>en</language>
<subject lang=fr>GENE DISPERSAL</subject>
<subject lang=fr>SEED DISPERSAL</subject>
<subject lang=fr>SPATIAL GENETIC STRUCTURE</subject>
<subject lang=fr>TROPICAL TREES</subject>
<subject lang=fr>DISSEMINATION DES GRAINES</subject>
<subject lang=fr>GENETIQUE DES POPULATIONS</subject>
<subject>[SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The extent of gene dispersal is a fundamental factor of the population and evolutionary dynamics of tropical tree species, but directly monitoring seed and pollen movement is a difficult task. However, indirect estimates of historical gene dispersal can be obtained from the fine-scale spatial genetic structure of populations at drift-dispersal equilibrium. Using an approach that is based on the slope of the regression of pairwise kinship coefficients on spatial distance and estimates of the effective population density, we compare indirect gene dispersal estimates of sympatric populations of 10 tropical tree species. We re-analysed 26 data sets consisting of mapped allozyme, SSR (simple sequence repeat), RAPD (random amplified polymorphic DNA) or AFLP (amplified fragment length polymorphism) genotypes from two rainforest sites in French Guiana. Gene dispersal estimates were obtained for at least one marker in each species, although the estimation procedure failed under insufficient marker polymorphism, limited sample size, or inappropriate sampling area. Estimates generally suffered low precision and were affected by assumptions regarding the effective population density. Averaging estimates over data sets, the extent of gene dispersal ranged from 150 m to 1200 m according to species. Smaller gene dispersal estimates were obtained in species with heavy diaspores, which are presumably not well dispersed, and in populations with high local adult density. We suggest that limited seed dispersal could indirectly limit effective pollen dispersal by creating higher local tree densities, thereby increasing the positive correlation between pollen and seed dispersal distances. We discuss the potential and limitations of our indirect estimation procedure and suggest guidelines for future studies</description>
<date>2006</date>
</dc>
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