Population structure and demographic history of a tropical lowland rainforest tree species Shorea parvifolia (Dipterocarpaceae) from Southeastern Asia

Hiroko Iwanaga, Kosuke M. Teshima, Ismael A. Khatab, Nobuyuki Inomata, Reiner Finkeldey, Iskandar Z. Siregar, Ulfah J. Siregar, Alfred E. Szmidt

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Abstract

Distribution of tropical rainforests in Southeastern Asia has changed over geological time scale, due tomovement of tectonic plates and/or global climatic changes. Shorea parvifolia is one of the most common tropical lowland rainforest tree species in Southeastern Asia. To infer population structure and demographic history of S. parvifolia, as indicators of temporal changes in the distribution and extent of tropical rainforest in this region, we studied levels and patterns of nucleotide polymorphism in the following five nuclear gene regions: GapC, GBSSI, PgiC, SBE2, and SODH. Seven populations from peninsular Malaysia, Sumatra, and eastern Borneo were included in the analyses. STRUCTURE analysis revealed that the investigated populations are divided into two groups: Sumatra-Malay and Borneo. Furthermore, each group contained one admixed population. Under isolation with migrationmodel, divergence of the two groups was estimated to occur between late Pliocene (2.6 MYA) and middle Pleistocene (0.7 MYA). The log-likelihood ratio tests of several demographic models strongly supported model with population expansion and low level of migration after divergence of the Sumatra-Malay and Borneo groups. The inferred demographic history of S. parvifolia suggested the presence of a scarcely forested land bridge on the Sunda Shelf during glacial periods in the Pleistocene and predominance of tropical lowland rainforest at least in Sumatra and eastern Borneo.

Original languageEnglish
Pages (from-to)1663-1675
Number of pages13
JournalEcology and Evolution
Volume2
Issue number7
DOIs
Publication statusPublished - Dec 1 2012

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Shorea
demographic history
Dipterocarpaceae
Borneo
rainforest
rain forests
population structure
Indonesia
lowlands
demographic statistics
tropical rain forests
divergence
Pleistocene
land bridge
tectonic plate
geological time
tectonics
polymorphism
Malaysia
Pliocene

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

Cite this

Population structure and demographic history of a tropical lowland rainforest tree species Shorea parvifolia (Dipterocarpaceae) from Southeastern Asia. / Iwanaga, Hiroko; Teshima, Kosuke M.; Khatab, Ismael A.; Inomata, Nobuyuki; Finkeldey, Reiner; Siregar, Iskandar Z.; Siregar, Ulfah J.; Szmidt, Alfred E.

In: Ecology and Evolution, Vol. 2, No. 7, 01.12.2012, p. 1663-1675.

Research output: Contribution to journalArticle

Iwanaga, Hiroko ; Teshima, Kosuke M. ; Khatab, Ismael A. ; Inomata, Nobuyuki ; Finkeldey, Reiner ; Siregar, Iskandar Z. ; Siregar, Ulfah J. ; Szmidt, Alfred E. / Population structure and demographic history of a tropical lowland rainforest tree species Shorea parvifolia (Dipterocarpaceae) from Southeastern Asia. In: Ecology and Evolution. 2012 ; Vol. 2, No. 7. pp. 1663-1675.
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