Publication Date:
2019-02-25
Description:
The East Indian sandalwood,Santalum albumL., is known for its fragrant heartwood and extractive oils. The increasing demand for the valuable sandalwood products has led to illegal and excessive logging, and there are otherSantalumspecies in the commercial market as substitutes (adulterants). Improved tools for the identification ofSantalumspecies are needed to control this situation. In this study, four chloroplast DNA (cpDNA) regions were screened (matK,psbA-trnH,trnK andtrnL) on 35 vouchered specimens covering fiveSantalumspecies, i.e.Santalum acuminatum,S. album,Santalum lanceolatum,Santalum murrayanumandSantalum spicatum. The goal of this study was to test the species discrimination ability by means of both the TaxonDNA and neighbor-joining (NJ) methods. The results indicate that the combination ofpsbA-trnH+trnK gave the best performance for discrimination (100%) of the studiedSantalumspecies concerning the discrimination ability and recovery rate. Meanwhile, six unvouchered wood specimens were retrieved and accurately identified at the species level based on the recommended DNA barcodes. The DNA barcode method is now ready for application in the monitoring of the trade of this valuable resource, and provides an effective approach for wood species identification and product authentication.
Print ISSN:
0018-3830
Electronic ISSN:
1437-434X
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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