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      Macrosolen bidoupensis (Loranthaceae), a new species from Bidoup Nui Ba National Park, southern Vietnam

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          Abstract

          Abstract

          Macrosolen bidoupensis Tagane & V.S.Dang, sp. nov. ( Loranthaceae ) is newly described from Bidoup Nui Ba National Park in Lam Dong Province, southern Vietnam. The new species is characterized by small broadly elliptic to circular leaves, sessile to short petioles, slightly cordate to rounded leaf bases, 4–5 pairs of lateral veins and a basally green corolla tube. An illustration, a summary of DNA barcoding of the plastid genes rbcL and matK, and a key to the species of Macrosolen in Vietnam are provided.

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          Most cited references15

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          A DNA barcode for land plants.

          DNA barcoding involves sequencing a standard region of DNA as a tool for species identification. However, there has been no agreement on which region(s) should be used for barcoding land plants. To provide a community recommendation on a standard plant barcode, we have compared the performance of 7 leading candidate plastid DNA regions (atpF-atpH spacer, matK gene, rbcL gene, rpoB gene, rpoC1 gene, psbK-psbI spacer, and trnH-psbA spacer). Based on assessments of recoverability, sequence quality, and levels of species discrimination, we recommend the 2-locus combination of rbcL+matK as the plant barcode. This core 2-locus barcode will provide a universal framework for the routine use of DNA sequence data to identify specimens and contribute toward the discovery of overlooked species of land plants.
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            The promise of DNA barcoding for taxonomy.

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              Plant DNA barcodes and a community phylogeny of a tropical forest dynamics plot in Panama.

              The assembly of DNA barcode libraries is particularly relevant within species-rich natural communities for which accurate species identifications will enable detailed ecological forensic studies. In addition, well-resolved molecular phylogenies derived from these DNA barcode sequences have the potential to improve investigations of the mechanisms underlying community assembly and functional trait evolution. To date, no studies have effectively applied DNA barcodes sensu strictu in this manner. In this report, we demonstrate that a three-locus DNA barcode when applied to 296 species of woody trees, shrubs, and palms found within the 50-ha Forest Dynamics Plot on Barro Colorado Island (BCI), Panama, resulted in >98% correct identifications. These DNA barcode sequences are also used to reconstruct a robust community phylogeny employing a supermatrix method for 281 of the 296 plant species in the plot. The three-locus barcode data were sufficient to reliably reconstruct evolutionary relationships among the plant taxa in the plot that are congruent with the broadly accepted phylogeny of flowering plants (APG II). Earlier work on the phylogenetic structure of the BCI forest dynamics plot employing less resolved phylogenies reveals significant differences in evolutionary and ecological inferences compared with our data and suggests that unresolved community phylogenies may have increased type I and type II errors. These results illustrate how highly resolved phylogenies based on DNA barcode sequence data will enhance research focused on the interface between community ecology and evolution.
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                Author and article information

                Journal
                PhytoKeys
                PhytoKeys
                PhytoKeys
                PhytoKeys
                Pensoft Publishers
                1314-2011
                1314-2003
                2017
                5 June 2017
                : 80
                : 113-120
                Affiliations
                [1 ] Center for Asian Conservation Ecology, Kyushu University, 744 Motooka, Fukuoka, 819-0395, Japan
                [2 ] The VNM Herbarium, Institute of Tropical Biology, Vast, 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, Vietnam
                [3 ] Department of Biology, Dalat University, 01 – Phu Dong Thien Vuong, Dalat, Vietnam
                [4 ] Laboratory of Forest Resources and Society, Graduate School of Agriculture Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
                [5 ] Prince of Songkla University, Hat Yai, Thailand
                [6 ] Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, Taiwan
                [7 ] Iriomote Station, Tropical Biosphere Research Center, University of the Ryukyus, 870 Uehara, Taketomi-cho, Yaeyama-gun, Okinawa, 907-1541, Japan
                [8 ] The Kyoto University Museum, Kyoto University, Yoshida Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
                Author notes
                Corresponding author: Shuichiro Tagane ( stagane29@ 123456gmail.com )

                Academic editor: D. Nickrent

                Article
                10.3897/phytokeys.80.13338
                5543609
                28781562
                505b4fee-e3a6-4b7c-a16d-37cc6fb2e30a
                Shuichiro Tagane, Van Son Dang, Nguyen Van Ngoc, Hoang Thi Binh, Natsuki Komada, Jarearnsak Sae Wai, Akiyo Naiki, Hidetoshi Nagamasu, Hironori Toyama, Tetsukazu Yahara

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 21 April 2017
                : 15 May 2017
                Categories
                Research Article

                Plant science & Botany
                bidoup nui ba national park,dna barcoding,loranthaceae,macrosolen,new species,vietnam,plantae,santalales

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