Abstract
Dipterocarpaceae, trees that dominate tropical rain forests in Southeast Asia consist of many economically and ecologically important species. We determined partial sequences of the PgiC gene from species of Shorea, Hopea, Neobalanocarpus, and Parashorea to elucidate phylogenetic relationships among the species of these genera, which have been regarded as interrelated. The sequences generated a gene tree with better resolution than previous cpDNA trees. The PgiC tree is essentially consistent with cpDNA trees, except for the placement of Neobalanocarpus. The PgiC tree shows that Neobalanocarpus is nested within White Meranti of Shorea, whereas this genus forms a clade with Hopea in cpDNA trees. This conflict suggests that Neobalanocarpus is derived via hybridization between White Meranti of Shorea and Hopea. Species belonging to each of three timber groups (Yellow Meranti, Balau, and Red Meranti) within Shorea are monophyletic. Together they form a monophyletic clade distinct from White Meranti. Botanical sections within Red Meranti appear not to be monophyletic. An extensive number of shared polymorphisms among species and consequential lack of monophyly of intraspecific haplotypes are found in Red Meranti. Potential causes of this phenomenon, including persistence of ancestral polymorphisms and gene flow via interspecific hybridization, are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 775-788 |
| Number of pages | 14 |
| Journal | American Journal of Botany |
| Volume | 92 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2005 |
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All Science Journal Classification (ASJC) codes
- Ecology, Evolution, Behavior and Systematics
- Genetics
- Plant Science
Cite this
Phylogeny of PgiC gene in Shorea and its closely related genera (Dipterocarpaceae), the dominant trees in southeast Asian tropical rain forests. / Kamiya, Koichi; Harada, Ko; Tachida, Hidenori; Ashton, Peter Shaw.
In: American Journal of Botany, Vol. 92, No. 5, 05.2005, p. 775-788.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Phylogeny of PgiC gene in Shorea and its closely related genera (Dipterocarpaceae), the dominant trees in southeast Asian tropical rain forests
AU - Kamiya, Koichi
AU - Harada, Ko
AU - Tachida, Hidenori
AU - Ashton, Peter Shaw
PY - 2005/5
Y1 - 2005/5
N2 - Dipterocarpaceae, trees that dominate tropical rain forests in Southeast Asia consist of many economically and ecologically important species. We determined partial sequences of the PgiC gene from species of Shorea, Hopea, Neobalanocarpus, and Parashorea to elucidate phylogenetic relationships among the species of these genera, which have been regarded as interrelated. The sequences generated a gene tree with better resolution than previous cpDNA trees. The PgiC tree is essentially consistent with cpDNA trees, except for the placement of Neobalanocarpus. The PgiC tree shows that Neobalanocarpus is nested within White Meranti of Shorea, whereas this genus forms a clade with Hopea in cpDNA trees. This conflict suggests that Neobalanocarpus is derived via hybridization between White Meranti of Shorea and Hopea. Species belonging to each of three timber groups (Yellow Meranti, Balau, and Red Meranti) within Shorea are monophyletic. Together they form a monophyletic clade distinct from White Meranti. Botanical sections within Red Meranti appear not to be monophyletic. An extensive number of shared polymorphisms among species and consequential lack of monophyly of intraspecific haplotypes are found in Red Meranti. Potential causes of this phenomenon, including persistence of ancestral polymorphisms and gene flow via interspecific hybridization, are discussed.
AB - Dipterocarpaceae, trees that dominate tropical rain forests in Southeast Asia consist of many economically and ecologically important species. We determined partial sequences of the PgiC gene from species of Shorea, Hopea, Neobalanocarpus, and Parashorea to elucidate phylogenetic relationships among the species of these genera, which have been regarded as interrelated. The sequences generated a gene tree with better resolution than previous cpDNA trees. The PgiC tree is essentially consistent with cpDNA trees, except for the placement of Neobalanocarpus. The PgiC tree shows that Neobalanocarpus is nested within White Meranti of Shorea, whereas this genus forms a clade with Hopea in cpDNA trees. This conflict suggests that Neobalanocarpus is derived via hybridization between White Meranti of Shorea and Hopea. Species belonging to each of three timber groups (Yellow Meranti, Balau, and Red Meranti) within Shorea are monophyletic. Together they form a monophyletic clade distinct from White Meranti. Botanical sections within Red Meranti appear not to be monophyletic. An extensive number of shared polymorphisms among species and consequential lack of monophyly of intraspecific haplotypes are found in Red Meranti. Potential causes of this phenomenon, including persistence of ancestral polymorphisms and gene flow via interspecific hybridization, are discussed.
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UR - http://www.scopus.com/inward/citedby.url?scp=18244363082&partnerID=8YFLogxK
U2 - 10.3732/ajb.92.5.775
DO - 10.3732/ajb.92.5.775
M3 - Article
C2 - 21652457
AN - SCOPUS:18244363082
VL - 92
SP - 775
EP - 788
JO - American Journal of Botany
JF - American Journal of Botany
SN - 0002-9122
IS - 5
ER -