A5051445143- Genomics and Phylogenetic Studies
- Identification and Quantification in Food
- Magnetic confinement fusion research
- Marine Biology and Ecology Research
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Fluid Dynamics and Turbulent Flows
- Genetic diversity and population structure
- Environmental DNA in Biodiversity Studies
- Crustacean biology and ecology
- Agriculture, Soil, Plant Science
- Invertebrate Taxonomy and Ecology
- Aquatic Invertebrate Ecology and Behavior
- Parasite Biology and Host Interactions
- Marine Bivalve and Aquaculture Studies
- Ichthyology and Marine Biology
- Environmental Toxicology and Ecotoxicology
- Genetic and phenotypic traits in livestock
- Ecology and Conservation Studies
- Wildlife Conservation and Criminology Analyses
- Marine Ecology and Invasive Species
- Machine Learning in Bioinformatics
- Chemical Reaction Mechanisms
- Marine Invertebrate Physiology and Ecology
- Cephalopods and Marine Biology
Sangmyung University
2016-2025
Soongsil University
2004-2023
Dankook University
2018
Korea Research Institute of Bioscience and Biotechnology
2003-2013
National Institute of Biological Resources
2011
Seoul National University
2011
Cat Tien National Park
2011
Kologrivsky Nature Reserve
2011
Korea Institute of Science & Technology Information
2011
Korea Forest Service
2011
Abstract Strong evidence exists for polyploidy having occurred during the evolution of tribe Brassiceae. We show dynamic and ongoing diploidization process by comparative analysis sequences four paralogous Brassica rapa BAC clones homologous 124-kb segment Arabidopsis thaliana chromosome 5. estimated times since divergence lineages. The three subgenomes B. triplicated 13 to 17 million years ago (MYA), very soon after at 18 MYA. In addition, a pair BACs represents more recent segmental...
DNA barcoding, an inventory of sequences from a standardized genomic region, provides bio-barcode for identifying and discovering species. Several recent studies suggest that the sequence diversity in 648 bp region mitochondrial gene cytochrome c oxidase I (COI) might serve as barcode animal species such North American birds, insects fishes. The present study tested effectiveness COI discriminating Korean bird We determined 5′ terminus 92 birds found identification was unambiguous; genetic...
The duplication of Hox clusters and their maintenance in a lineage has prominent but little understood role chordate evolution. Here we examined how cluster may influence changes architecture patterns noncoding sequence We sequenced the entire duplicated HoxAa HoxAb zebrafish (Danio rerio) extended 5' (posterior) part HoxM (HoxA-like) horn shark (Heterodontus francisci) containing hoxa11 hoxa13 orthologs as well intergenic flanking sequences. HoxA each house considerably fewer genes are...
Avian influenza virus (AIV) circulates among free-ranging, wild birds. We optimized and validated a DNA barcoding technique for AIV isolation host-species identification using fecal samples from was tissue known bird species, the method shown to distinguish 26 species. Subsequently, (n=743) collected waterfowl habitats confirmed findings laboratory tests. All identified AIV-positive hosts (n=35) were members of order Anseriformes. successfully applied surveillance examined epidemiology host...
The Asiatic black bear is one of the most endangered mammals in South Korea owing to population declines resulting from human exploitation and habitat fragmentation. To restore Korea, 27 cubs North Russian Far East (Primorsky Krai) were imported released into Jirisan National Park, a reservoir largest wild 2004. monitor success this reintroduction, genetic diversity structure reintroduced bears measured using both mitochondrial nuclear DNA markers. Mitochondrial D-loop region sequences (615...
Abstract Numerous studies have proven the potential of deep learning models for classifying wildlife. Such can reduce workload experts by automating species classification to monitor wild populations and global trade. Although typically perform better with more input data, available wildlife data are ordinarily limited, specifically rare or endangered species. Recently, citizen science programs helped accumulate valuable but such is still not enough achieve best performance compared...
Renormalized statistical theory is used to calculate the interactions between short scales (wave vector $\mathit{k})$ and long $\mathit{q}\ensuremath{\ll}\mathit{k})$ in Hasegawa-Mima model of drift-wave turbulence (generalized include proper nonadiabatic response for ${k}_{\ensuremath{\Vert}}=0$ fluctuations). The calculations zonal-flow growth rate as a special case, but also describe long-wavelength fluctuations with $\mathit{q}$ oriented at an arbitrary angle background gradient. results...
Sortase enzymes are cysteine transpeptidases that embellish the surface of Gram-positive bacteria with various proteins thereby allowing these microorganisms to interact their neighboring environment. It is known several substrates can cause pathological implications, so researchers have focused on development sortase inhibitors. Currently, six different classes sortases (A-F) recognized. However, extensive application bacterial genome sequencing projects, number potential in public...
The specific rates of solvolysis p-nitrobenzyl chloroformate are well correlated using the extended Grunwald-Winstein equation, with a high sensitivity (l) to changes in solvent nucleophilicity (N(T)) and moderate (m) ionizing power (Y(Cl)). values consistent rate-determining association within an association-dissociation pathway. selectivity (S) for attack at acyl carbon show modest preference ethanol over water relatively 2,2,2-trifluoroethanol (TFE). solvolyses benzyl similar...
As greenhouse gases and environmental pollution become serious, the demand for alternative energy such as bioethanol has rapidly increased, a large supply of biomass is required bioenergy production. Lignocellulosic most abundant on planet part it, second-generation biomass, advantage not being food resource. In this study, Sicyos angulatus, known an invasive plant (harmful) species, was used raw material order to improve enzymatic hydrolysis, S. angulatus pretreated with different NaOH...
The cell surface proteins of gram-positive bacteria are involved in many important biological functions, including the infection host cells. Owing to their virulent nature, these also considered strong candidates for potential drug or vaccine targets. Among various bacteria, LPXTG-like form a major class. These have highly conserved C-terminal wall sorting signal, which consists an LPXTG sequence motif, hydrophobic domain, and positively charged tail. targeted envelope by sortase enzyme via...
DNA barcoding provides a rapid, accurate, and standardized method for species-level identification using short sequences. Such is useful mapping all the species on Earth, particularly when sequencing technology cheaply available. There are many nations in Asia with biodiversity resources that need to be mapped registered databases.We have built general barcode data processing system, BioBarcode, open source software - which purpose database server. It uses mySQL RDBMS 5.0, BLAST2, Apache...
Abstract Dorid nudibranchs are a large group of mollusks with approximately 2,000 recorded species. Although agreement exists on the monophyletic nature dorid nudibranch group, interfamily relationships suborder subject to debate. Despite efforts elucidate this issue using short molecular markers, conclusiveness findings has been hindered by branching polytomy. Mitogenomes known be effective markers for use in phylogenetic investigations. In study, eight mitogenomes were decoded and...
The crustacean Daphnia pulex is one of the best model organisms for studying inducible defense mechanisms due to their morphology in response predator Chaoborus larvae. In this study, multiple developmental stages D. were exposed C. flavicans larvae and transcriptome profiles samples from late embryo fifth instar sequenced by RNA-seq technique investigate genetic background underlying defenses. comparison, differentially expressed genes between defensive normal morphs identified, including...
Chinese mitten crab (CMC) or Eriocheir sinensis is a strong osmoregulator that can keep rigorous cellular homeostasis. CMC flourish in freshwater, as well seawater, habitats and represents the most important species for freshwater aquaculture. Salt stress have direct effects on several stages (e.g., reproduction, molting, growth, etc.) of life cycle. To get better overview genes involved gills under different salinity conditions, we conducted an RNA-Seq meta-analysis transcriptomes four...
ABSTRACT: In this article, we consider the role of Hox genes in chordate and vertebrate evolution from viewpoints molecular developmental evolution. Models cluster duplication are considered with emphasis on a threefold model. We also show that is consistent semiconservative model duplication, where following one daughter remains unmodified, while other diverges assumes new architecture presumably functions. Evidence reviewed, suggesting gene enhancers have played an important body plan...