title: Genetic variation in and spatial structure of natural populations of Dipterocarpus alatus (Dipterocarpaceae) determined using single sequence repeat markers.
abstract: Dipterocarpus alatus (Dipterocarpaceae) is widely distributed in lowland forests in central and southern Vietnam, Cambodia, Laos, Myanmar, Philippines, Thailand, and India. Due to over-exploitation and habitat destruction, the species is now threatened. The genetic variation within and among populations of D. alatus was investigated on the basis of 9 microsatellite (single sequence repeat, SSR) loci. In all, 268 sampled trees from 10 populations in central and southern Vietnam were analyzed in this study. The SSR data showed a high genetic variability within populations with an average of HO = 0.209 and HE = 0.239. Genetic differentiation among populations was high (FST = 0.266), indicating limited gene flow (Nm = 0.69). Analysis of molecular variance showed that most genetic variation was within populations (74.96%). This study highlights the importance of conserving the genetic resources of D. alatus species.
authors: Department of Experimental Taxonomy & Genetic Diversity, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam ngtam@hn.vnn.vn.
authors: N M
authors: NM
authors: Tam
authors: Department of Experimental Taxonomy & Genetic Diversity, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam.
authors: V D
authors: VD
authors: Duy
authors: Department of Molecular Systematics and Conservation Genetics, Institute of Ecology and Biological Resources (VAST), Cau Giay, Hanoi, Vietnam.
authors: N M
authors: NM
authors: Duc
authors: Department of Experimental Biology, Institute of Natural Products Chemistry (VAST), Cau Giay, Hanoi, Vietnam.
authors: V D
authors: VD
authors: Giap
authors: Department of Molecular Systematics and Conservation Genetics, Institute of Ecology and Biological Resources (VAST), Cau Giay, Hanoi, Vietnam.
authors: B T T
authors: BT
authors: Xuan
mesh_terms: D003247:Conservation of Natural Resources; D053958:Dipterocarpaceae / Q000145:classification / Q000235:genetics*; D051456:Gene Flow; D014644:Genetic Variation; D018895:Microsatellite Repeats; D010802:Phylogeny; D058974:Phylogeography; D063148:Plant Dispersal; D014744:Vietnam