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Phylogenetic relatedness of several agarwood-producing taxa (Thymelaeaceae) from Indonesia


Citation

Lee, Shiou Yih and Turjaman, Maman and Mohamed, Rozi (2018) Phylogenetic relatedness of several agarwood-producing taxa (Thymelaeaceae) from Indonesia. Tropical Life Sciences Research, 29 (2). pp. 13-28. ISSN 1985-3718; ESSN: 2180-4249

Abstract

Indonesia is home to several tree taxa that are harvested for agarwood. This highly valuable oleoresin ironically was the cause for some species to become vulnerable due to gluttonous human activity. However, information on the genetic diversity of these endangered trees is limited. In this study, 28 specimens representing eight species from two genera, Aquilaria and Gyrinops, were collected from ex-situ and in-situ populations in Indonesia. Phylogenetic analysis conducted on DNA sequences of the nuclear ribosomal internal transcribed spacer (ITS) and the trnL-trnF intergenic spacer regions, revealed that Aquilaria and Gyrinops are paraphyletic when Aquilaria cumingiana is excluded. The phylogenetic analysis for ITS and trnL-trnF showed capability to categorise agarwoodproducing species based on their regions: East Indonesia and West Indonesia, using Wallace’s Line as the divider. In addition, we discuss challenges in species identification and taxonomy of agarwood-producing genera, and their conservation efforts in Indonesia.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Forestry
DOI Number: https://doi.org/10.21315/tlsr2018.29.2.2
Publisher: Penerbit Universiti Sains Malaysia
Keywords: Aquilaria; Gyrinops; Genetic diversity; Internal transcribed spacer (ITS); trnL-trnF
Depositing User: Nabilah Mustapa
Date Deposited: 08 Jul 2019 07:27
Last Modified: 08 Jul 2019 07:27
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.21315/tlsr2018.29.2.2
URI: http://psasir.upm.edu.my/id/eprint/69853
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