Publications by authors named "Byoung-Yoon Lee"

The genus (Agavoideae and Asparagaceae) is one of the most popular landscaping and ornamental plants native to temperate East Asia. Their popularity has led to extensive hybridization to develop various cultivars. However, their long history of hybridization, cultivation, and selection has brought about taxonomic confusion in the species delimitation along with their indistinguishable morphology.

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Completed chloroplast genome of Nakai isolated from Dokdo island in Korea is 169,719 bp long (GC ratio is 38.8%) and has four subregions: 102,381 bp of large single-copy (37.8%) and 7,750 bp of small single-copy (32.

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Background: The genus Hosta is a group of economically appreciated perennial herbs consisting of approximately 25 species that is endemic to eastern Asia. Due to considerable morphological variability, the genus has been well recognized as a group with taxonomic problems. Chloroplast is a cytoplasmic organelle with its own genome, which is the most commonly used for phylogenetic and genetic diversity analyses for land plants.

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The complete chloroplast genome sequence of Makino (Caryophyllaceae) was determined. The genome was 151,831 bp long, consisting of a large single-copy region (83,875 bp) and a small single-copy region (17,591 bp) separated by two inverted repeats (25,331 bp). The plastome contained 124 genes; 82 encode proteins, 34 encode tRNA, and eight encode rRNA.

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Lychnis wilfordii (Regel) Maxim. is a perennial plant designated as an endangered species by the Korean government because of rapid reduction in its population size. Thus, a population genetic study of this species is needed to establish the strategy for management and conservation based on scientific evidences.

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Article Synopsis
  • Human-driven habitat fragmentation is causing isolated populations of endangered plant species, raising their extinction risk.
  • A study on a Korean endemic medicinal plant revealed significant genetic differences among populations and low genetic variation within populations across seven areas in South Korea.
  • The findings indicate that these plant populations may have experienced recent bottlenecks and highlight the need for targeted conservation efforts to address habitat isolation and prevent further decline.
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is a medicinal plant belonging to the Aristolochiaceae family. In this study, complete chloroplast genome sequence of was characterized through assembly with next generation sequencing data. The chloroplast genome is 193,356 bp long and has the stereotypical tripartite organization consisting of large single copy region and a pair of inverted repeats.

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is a perennial herbal ornamental plant belonging to the Asparagaceae family and an endemic species distributed in islands of Korea. In this study, complete chloroplast genome sequence of was characterized through assembly with next generation sequencing data. The chloroplast genome is 156,756 bp in length and contains four rRNA genes, 30 tRNA genes, and 77 protein-coding genes.

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The complete chloroplast genomes of Lychnis wilfordii and Silene capitata were determined and compared with ten previously reported Caryophyllaceae chloroplast genomes. The chloroplast genome sequences of L. wilfordii and S.

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In this study, highly enantioselective copper(I)-catalyzed hydroboration of bicyclic alkenes is reported. Using a copper-taniaphos complex, excellent enantioselectivities up to >99% ee were obtained for bicyclic alkenes including oxa- and azabicyclic alkenes. Furthermore, copper-catalyzed enantiodivergent hydroboration methods with the same chiral ligand-copper precursors were developed using different boron sources based on alternative mechanistic pathways.

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Background: The purpose of this study is to investigate and analyze the traditional knowledge of medicinal plants used by residents in Gayasan National Park in order to obtain basic data regarding the sustainable conservation of its natural plant ecosystem.

Methods: Data was collected using participatory observations and in-depth interviews, as the informants also become investigators themselves through attending informal meetings, open and group discussions, and overt observations with semi-structured questionnaires. Quantitative analyses were accomplished through the informant consensus factor (ICF), fidelity level, and inter-network analysis (INA).

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The red fox (Vulpes vulpes) is the most widely distributed terrestrial carnivore in the world, occurring throughout most of North America, Europe, Asia, and North Africa. In South Korea, however, this species has been drastically reduced due to habitat loss and poaching. Consequently, it is classified as an endangered species in Korea.

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Multi-walled carbon nanotube (MWNTs)/poly(methyl methacrylate) (PMMA) nanocomposites were prepared by both coagulation and solvent casting methods in this study. Dispersibility of the MWNTs in the PMMA matrix was compared with each other using both scanning electron microscopy (SEM) and photograph. MWNTs from the solvent casting method were found to be dispersed better in the matrix, indicating that the dispersion state of the MWNTs depends on the preparation procedure.

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