• Title/Summary/Keyword: Functional Diversification

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Identification of diversified functions of soybean FT homologs in photoperiod-dependent flowering time control

  • Lee, Su Hyeon;Choi, Cheol Woo;Kim, Min Chul
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2017.06a
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    • pp.100-100
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    • 2017
  • FT is one of the major floral activator in plant flowering. FT determines the changing point of time from vegetative stage to reproductive stage. To understand the role of FT homologs in short-day plant soybean, we identified 10 soybean FT homologous genes and named GmFTs. We figured out that 10 GmFT genes were further categorized into three subclades through phylogenetic analysis. Expression analysis of GmFT genes indicated that they might have different functions in photoperiod-dependent soybean flowering. Most of GmFTs, for example, GmFT2a, GmFT2b, GmFT5a and GmFT6 mainly expressed in soybean leaves at short-day condition. However, interestingly GmFT1a and GmFT4 represented opposite expression pattern to other GmFTs. Arabidopsis transgenic plants overexpressing GmFT2a and GmFT5a exhibited extremely early flowering. In contrast, overexpression of GmFT4 delayed flowering of Arabidopsis transgenic plants. The results suggest that GmFT4 has antagonistic role to other GmFTs in soybean flowering. Interestingly, mRNA level of GmFT2a is higher in early flowering soybean accessions than in late flowering ones. Moreover, the highest point of mRNA level of GmFT2a showed the positive correlation with the timing of flowering of soybean accessions. But that of GmFT4 showed opposite pattern. Here, we report that soybean FT homologs might acquire different functions in photoperiod-dependent flowering through the functional diversification during evolution.

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Genomic Organization and Isoform-Dependent Expression Patterns of Wap65 genes in Various Tissues during Immune Challenges in the Mud Loach Misgurnus mizolepis

  • Kim, Yi Kyung;Cho, Young Sun;Lee, Sang Yoon;Nam, Yoon Kwon
    • Fisheries and Aquatic Sciences
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    • v.17 no.4
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    • pp.471-478
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    • 2014
  • Genomic organization, including the structural characteristics of 5'-flanking regions of two 65-kDa protein (WAP65) isoform genes associated with warm temperature acclimation, were characterized and their transcriptional responses to immune challenges were examined in the intestine, kidney and spleen of the mud loach (Misgurnus mizolepis; Cypriniformes). Both mud loach Wap65 isoform genes displayed a 10-exon structure that is common to most teleostean Wap65 genes. The two mud loach Wap65 isoforms were predicted to possess various stress- and immune-related transcription factor binding sites in their regulatory regions; however, the predicted motif profiles differed between the two isoforms, and the inflammation-related transcription factor binding motifs, such as NF-${\kappa}B$ and CREBP sites, were more highlighted in the Wap65-2 isoform than the Wap65-1 isoform. The results of qRT-PCR indicated that experimental immune challenges using Edwardsiella tarda, lipopolysaccharide or polyI:C induced the Wap65-2 isoform more than Wap65-1 isoform, although modulation patterns in response to these challenges were tissue- and stimulant-dependent. This study confirms that functional diversification between the two mud loach Wap65 isoforms (i.e., closer involvement of Wap65-2 in the acute phase of inflammation and innate immunity) occurs at the mRNA level in multiple tissues, and suggests that such differential modulation patterns between the two isoforms are related to the different transcription factor binding profiles in their regulatory regions.

Evaluation of the Basic Properties of Materials for Application of Functional Plaster Mortar (기능성 미장 모르타르의 현장 적용을 위한 재료별 기초 물성에 관한 평가)

  • Cho, Do-Young;Kim, Gyu-Yong;Miyauchi, Hiroyuki
    • Journal of the Korea Institute of Building Construction
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    • v.12 no.2
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    • pp.152-160
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    • 2012
  • The development of building must be accompanied with construction technology and performance of materials. In particular, wet processes have a high level of dependence on manpower and a low level of diversification of materials used. This study aimed to determine the applicability of various materials for wet process, mechanized construction and eco-friendly building materials through a comparison with dry premixed mortar. As a result, it was found that resin plaster and gypsum plaster's strength is lower than that of dry cement mortar, but their mechanization application, construction simplification, smoothness and bond strength are higher than that of dry cement mortar. And estimate that is valid as workability, bonding strength, eco-friendly building material in occasion of gypsum plaster.

Spatial Distribution of Benthic Macroinvertebrates at Three River Weirs in The Namhan River (남한강 본류 3개 보의 저서성 대형무척추동물의 공간적 분포)

  • Kown, Yongju;Kim, Jin-Young;Kim, Piljae;Kim, Jungwoo;Kim, Jeong-KI;Kong, Dongsoo
    • Journal of Korean Society on Water Environment
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    • v.36 no.1
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    • pp.36-47
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    • 2020
  • Three large scale weirs were constructed 2010 - 2011 in the Namhan river, Korea. The purpose of this study was to investigate the spatial distribution of benthic macroinvertebrates and the influence of environmental factors at the weirs 2014 - 2015. The number of species was higher in the riparian zone than in the transition or the limnetic zone. This seems to be because of the diversification of microhabitats and food sources according to the development of littoral zones. From the riparian zone to the limnetic zone, the individual abundance proportion of gathering collectors among functional feeding groups decreased, and that of filtering collectors increased. In the limnetic zone, sprawlers and climbers among habitat orientation groups decreased, and burrowers increased. This means that coarse particulate organic matter originated from land or riparian zone was transformed to fine particulate organic matter in the limnetic zone. Asian clam (Corbicula fluminea) and chironomids were dominant species based on individual abundance. Asian clam, a major taxon considering biomass, was abundant toward the limnetic zone. This is becasue of the shallow depth, suitable water current, slightly coarse substrate, and good water quality. There was no significant relationship between the water quality and the characteristics of the benthic macroinvertebrate community because the water quality was spatially not heterogenous. The more influential factors for benthic community were physical factors, especially water depth. Water depth showed a markedly significant correlation with Shannon-Weaver's species diversity (r=-0.90), Margalef's species richness (r=-0.82), and McNaughton's dominance (r=0.86). Water depth showed a positive correlation (r=0.68) with the Kong and Kim BMSI (Bentic Macroinverebrates Streambed Index), and this may be related to the coarse substrate of the limnetic zone.

A Study on Home Network Functional Model for Personal Area Network based Virtual Home Network (PAN (Personal Area Network) 기반 가상 홈 (Virtual Home) 지원을 위한 홈 네트워크 연동 모델 연구)

  • Joong Hyun Joong
    • Journal of the Korea Society of Computer and Information
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    • v.10 no.1 s.33
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    • pp.167-174
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    • 2005
  • With the progress of portable appliances such as cell phone and handhold PC, the popularization of Personal Area Network (PAN) and the diversification of services that are based on Personal Mobile Gateway (PMG) . To use home services at any time regardless of their Position, it needs a virtual home network that a home network and outside networks are finally integrated. Although interoperability among home appliances reached their service stage, research for services and middleware for new small scale network such as PAN is at an early stage. Traditional home network service/connection methods, terminal control schemes, and middlewares must be extended to accommodate PMG-based PAM. In this paper, we propose an integrated virtual home network Platform that guarantees seamless connections between home network and PAM. We also analyze indispensable functions and presents functions that should be added existent home gateway or home sewer by function.

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Crime prevention role and limitations of private security organizations (민간방범기구의 범죄예방 역할과 한계)

  • Gong, Bae-Wan
    • Convergence Security Journal
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    • v.12 no.2
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    • pp.33-41
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    • 2012
  • Important crime prevention is emphasized. Depending on the type of criminal act itself, but with many material and human damage because it is a threat to the safety of civil life. The traditional police power of the police in patrolling the derailment by the diversification of the crime, globalization, organizing, specialization, and ferocious anger by far exceeds the capabilities of the police crime prevention are occurring. Civilian police crime prevention organizations in the area of the region as a base for complementary activities, and even if the purpose of commercial availability, but many organizations is the autonomous and spontaneous personality voluntary work civic life is to serve as the safety fence. But that suits the role of these organizations and social support and lack of institutional support and practical and effective crime prevention activities has not been effective. Law reform and the role of the Organization for the maintenance of redundancy, or a series of systematic effort to equip networks and take advantage of the functional and has been factory.

Porosity the Male Adornments Conjugation Plan which Uses the Metal (다공성 금속을 이용한 남성 신변장신구 활용 방안)

  • Kim, Min-Ho
    • The Journal of the Korea Contents Association
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    • v.9 no.9
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    • pp.191-198
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    • 2009
  • Advancement of technique in the $21^{st}$ century has enabled us to combine designs through diversification of materials and academic liaison, which has brought about alteration of variety of desires in our lives. Consequently, visual concern along with harmony of functional roles allows development of design that matches one's own Individuality, in which case is becoming the subject of interest. Currently, designs are being developed using various materials. This trend respects personal sensitivity and taste and thus becoming diversified. As a result of elevated standard of living, health and individuality are becoming highly concerned and accordingly, fragrance is being developed in various forms to match personal taste and character, such as one's own memory and sensitivity. Hence, I am to propose a conjugation plan about men's adornments that deviates from women's secondary design and expresses only men's character and sensitivity. First, I will engraft porosity metal with adornments and use materials that has aroma and direction of way of wearing it. Then, I will engraft visual design with the olfactory sensation to apply to ornaments, using mechanical traits and materials with aesthetic elements, which will meet the customers' sensuous demand

A Comparison of Quality Characteristics in Dairy Products Made from Jersey and Holstein Milk

  • Yoo, Jayeon;Song, Minyu;Park, Wonseo;Oh, Sangnam;Ham, Jun-sang;Jeong, Seok-geun;Kim, Younghoon
    • Food Science of Animal Resources
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    • v.39 no.2
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    • pp.255-265
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    • 2019
  • This study aimed to examine the quality characteristics of fermented milk, Mozzarella cheese, and Gouda cheese from Jersey and Holstein milk. The fermented milk, Mozzarella cheese, and Gouda cheese made from the Jersey breed exhibited higher fat, calcium, and phosphorous contents than those from the Holstein breed. The proportion of saturated fatty acids such as palmitic acid and stearic acid was higher in dairy products made from Jersey than those made from Holstein, as was the component ratio of unsaturated fatty acids containing oleic acid and linoleic acid. In the sensory evaluations of fermented milk and Mozzarella cheese, the preference scores of products from Jersey were lower in color, flavor, texture, taste, and general preference than those from Holstein. In terms of sensory preference, it is considered that Jersey milk may be more appropriate for ripened cheese than fermented milk and fresh cheese. Therefore, Jersey milk is expected to contribute to the diversification of dairy products and to provide consumers with high quality nutrition.

Policy Diagnoses and Prescriptions of Crisis on Industrial Regions in the Republic of Korea (한국 산업위기지역에 대한 정책적 진단과 처방)

  • Jung, Sung-Hoon
    • Journal of the Economic Geographical Society of Korea
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    • v.22 no.3
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    • pp.237-245
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    • 2019
  • The aim of this article is to introduce articles of the special issue on 'Revitalization Conditions on Crisis on Industrial Regions: Experience from Europe and the Republic of Korea, and to explore policy alternatives to crisis on industrial regions on the basis of policy diagnoses and prescriptions. In the existing research, diagnoses of such Korean regions are quantitatively focused upon industry, employment, plant, consumption, investment, real estate, and labour market, and are qualitatively based upon external environment and functional, structural and spatial characteristics. Prescriptions of such regions emphasize the establishment of a law and an institutional fix, financial supports, jobs' creation, industrial diversification, the intensification of urban foundation throughout the urban revitalizaion. In the policy development for these regions, it is required to link the industrial sector to social, educational, political and welfare sectors, and furthermore the collaboration of inter- and intra-ministry and the active participation of provincial and local governments are needed.

Granule-Bound Starch Synthase I (GBSSI): An Evolutionary Perspective and Haplotype Diversification in Rice Cultivars

  • Sang-Ho Chu;Gi Whan Baek;Yong-Jin Park
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2022.10a
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    • pp.219-219
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    • 2022
  • Granule-bound starch synthase I (GBSSI), encoded by the waxy gene, is responsible for the accumulation of amylose during the development of starch granules in rice endosperm. Despite many findings on waxy alleles, the genetic diversity and evolutionary studies are still not fully explored regarding their functional effects. Comprehensive evolutionary analyses were performed to investigate the genetic variations and relatedness of the GBSSI gene in 374 rice accessions composed of 54 wild accessions and 320 bred cultivars (temperate japonica, tropical japonica, indica, aus, aromatic, and admixture). GBSS1 coding regions were analyzed from a VCF file retrieved from whole-genome resequencing data, and eight haplotypes were identified in the GBSSI coding region of 320 bred cultivars. The genetic diversity indices revealed the most negative Tajima's D value in the tropical-japonica, followed by the aus and temperate-japonica, while Tajima's D values in indica were positive, indicating balancing selection. Diversity reduction was noticed in temperate japonica (0.0003) compared to the highest one (wild, 0.0044), illustrating their higher genetic differentiation by FST-value (0.604). The most positive Tajima's D value was observed in indica (0.5224), indicating the GBSSI gene domestication signature under balancing selection. In contrast, the lowest and negative Tajima's D value was found in tropical japonica (-0.5291), which might have experienced a positive selection and purified due to the excess of rare alleles. Overall, our study offers insights into haplotype diversity and evolutionary fingerprints of GBSSI. It ako provides genomic information to increase the starch content of cooked rice.

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