Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions
Shorea acuminata Dyer, Shorea curtisii Dyer ex King, Shorea leprosula Miq., and Shorea parvifolia Dyer are dominant tree species in the tropical rainforest of Peninsular Malaysia, which experienced several climatic changes during Pleistocene. To investigate the current population structure and demog...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
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2008
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| Online Access: | http://psasir.upm.edu.my/id/eprint/7491/ http://psasir.upm.edu.my/id/eprint/7491/1/Demographic%20history%20and%20interspecific%20hybridization%20of%20four%20Shorea%20species.pdf |
| _version_ | 1848840609296547840 |
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| author | Ishiyama, Hiroko Inomata, Nobuyuki Yamazaki, Tsuneyuki Ab Shukor, Nor Aini Szmidt, Alfred E. |
| author_facet | Ishiyama, Hiroko Inomata, Nobuyuki Yamazaki, Tsuneyuki Ab Shukor, Nor Aini Szmidt, Alfred E. |
| author_sort | Ishiyama, Hiroko |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Shorea acuminata Dyer, Shorea curtisii Dyer ex King, Shorea leprosula Miq., and Shorea parvifolia Dyer are dominant tree species in the tropical rainforest of Peninsular Malaysia, which experienced several climatic changes during Pleistocene. To investigate the current population structure and demographic history of these species, we analyzed levels and patterns of nucleotide polymorphism of the nuclear gene region PgiC. We also used sequence data of the GapC gene region obtained in our previous study. Negative Tajima's D values observed in both investigated gene regions for S. curtisii, S. leprosula, and S. parvifolia implied that all three species have experienced population expansion events. Little to moderate levels of population differentiation in S. acuminata and S. curtisii suggested recent divergence of the investigated populations after postglacial colonization of the Peninsular Malaysia. In addition, some haplotypes were similar or identical to haplotypes of the other species. The existence of such haplotypes could be partially explained by interspecific hybridization. Indeed, we found some putative hybrid individuals. Interspecific hybridization among closely related species might have contributed to the polymorphism of the investigated species. |
| first_indexed | 2025-11-15T07:30:04Z |
| format | Article |
| id | upm-7491 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:30:04Z |
| publishDate | 2008 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-74912015-09-30T08:53:51Z http://psasir.upm.edu.my/id/eprint/7491/ Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions Ishiyama, Hiroko Inomata, Nobuyuki Yamazaki, Tsuneyuki Ab Shukor, Nor Aini Szmidt, Alfred E. Shorea acuminata Dyer, Shorea curtisii Dyer ex King, Shorea leprosula Miq., and Shorea parvifolia Dyer are dominant tree species in the tropical rainforest of Peninsular Malaysia, which experienced several climatic changes during Pleistocene. To investigate the current population structure and demographic history of these species, we analyzed levels and patterns of nucleotide polymorphism of the nuclear gene region PgiC. We also used sequence data of the GapC gene region obtained in our previous study. Negative Tajima's D values observed in both investigated gene regions for S. curtisii, S. leprosula, and S. parvifolia implied that all three species have experienced population expansion events. Little to moderate levels of population differentiation in S. acuminata and S. curtisii suggested recent divergence of the investigated populations after postglacial colonization of the Peninsular Malaysia. In addition, some haplotypes were similar or identical to haplotypes of the other species. The existence of such haplotypes could be partially explained by interspecific hybridization. Indeed, we found some putative hybrid individuals. Interspecific hybridization among closely related species might have contributed to the polymorphism of the investigated species. 2008 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7491/1/Demographic%20history%20and%20interspecific%20hybridization%20of%20four%20Shorea%20species.pdf Ishiyama, Hiroko and Inomata, Nobuyuki and Yamazaki, Tsuneyuki and Ab Shukor, Nor Aini and Szmidt, Alfred E. (2008) Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions. Canadian Journal of Forest Research, 38 (5). pp. 996-1007. ISSN 1208-6037 http://dx.doi.org/10.1139/X07-218 English |
| spellingShingle | Ishiyama, Hiroko Inomata, Nobuyuki Yamazaki, Tsuneyuki Ab Shukor, Nor Aini Szmidt, Alfred E. Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions |
| title | Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions |
| title_full | Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions |
| title_fullStr | Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions |
| title_full_unstemmed | Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions |
| title_short | Demographic history and interspecific hybridization of four Shorea species (Dipterocarpaceae) from Peninsular Malaysia inferred from nucleotide polymorphism in nuclear gene regions |
| title_sort | demographic history and interspecific hybridization of four shorea species (dipterocarpaceae) from peninsular malaysia inferred from nucleotide polymorphism in nuclear gene regions |
| url | http://psasir.upm.edu.my/id/eprint/7491/ http://psasir.upm.edu.my/id/eprint/7491/ http://psasir.upm.edu.my/id/eprint/7491/1/Demographic%20history%20and%20interspecific%20hybridization%20of%20four%20Shorea%20species.pdf |