Diversity and genetic structure of teak (Tectona grandis L.f) in its natural range using DNA microsatellite markers

Inza Jesus Fofana 1 Daniel Ofori 2 Mireille Poitel 3 Daniel Verhaegen 3
1 Laboratoire de génétique, Université de Cocody
2 CSIR- Forestry Research Institute of Ghana, Tree Improvement and seed Technology Division
3 UPR 39 Génétique forestière - Diversité génétique et amélioration des espèces forestières
Abstract : Teak (Tectona grandis L.f.) is considered to be an extraordinarily durable building timber with a worldwide reputation. Its widespread use has entailed the over- exploitation of natural forests and a large reduction in natural diversity. Fifteen micro- satellite markers were used to study the genetic variability and structure of 166 teak trees distributed over the whole natural area of teak. Analysis showed that in the teak natural area there were four main centers of genetic variability. Two clusters were in India and could be considered as main centers of genetic diversity in teak. The third cluster mainly consisting of populations in Thailand and Laos was genetically very distinct from the Indian populations but presented only half as much allelic variability. A fourth cluster from Central Laos showed even less genetic variability. The use of SSR markers for conser- vation of teak forest diversity is discussed
Keywords : Genetic structure Genetic diversity SSR Tectona grandis Conservation
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Inza Jesus Fofana, Daniel Ofori, Mireille Poitel, Daniel Verhaegen. Diversity and genetic structure of teak (Tectona grandis L.f) in its natural range using DNA microsatellite markers. New Forests, Springer Verlag, 2009, 37, pp.175-195. ⟨cirad-00845641⟩

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