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        검색결과 105

        81.
        2016.05 서비스 종료(열람 제한)
        Background : Scrophularia koraiensis is a herbaceous perennials belonging to the family Scrophulariaceae. This study was carried out to survey the effect of LED on root develop characteristics in Scrophularia koraiensis seedling. Methods and Results : Seeds were collected from plants growing in the Mt. Kariwang Jeongseon, Gangwon-do in September 2014, and they were sown to 128 cell plug tray filled with Peatmoss (TKS-2) soil at March, 2015. The experiment was performed with three different LED (Blue, Red, Blue + Red) at July, 2015. Morphological characteristics of root (total root length, root projet area, root surface area, root diameter and root volume) were analyzed with WinRHIZO software. Seedling root growth of scrophularia koraiensis was surveyed to be the highest at the Blue + Red LED in all measuring. Total root length was measured high in the order of Blue + Red, Red, Blue LED. Conclusion : According to the results, Scrophularia koraiensis seedling showed the highest root growth in Blue + Red LED.
        82.
        2015.07 서비스 종료(열람 제한)
        In this study, genetic diversity of wild Codonopsis lanceolata collected in Korea were analysed using SSR makers. Wild C. lanceolata roots were collected in Jeollanam-do Jangheung-gun Choentae Mountain as in roots. The wild C. lanceolata plants were cultivated in Chungbuk National University greenhouse and the leaves were sampled from 36 plants. The genomic DNA of C. lanceolata was extracted using CTAB. PCR was performed using a program of 35 cycles at 94℃ for 30 sec, 60℃ for 30 sec, and 72℃ for 30 sec with an pre-denaturation of 94℃ for 5 min and a final extension of 72℃ for 30 min. The PCR reaction mixture contains 5 pmole of primers and 20 ng of DNA template in a 20 μL reaction volume. The genotype of the analyzed samples were very different. Therefore, the wild C. lanceolata collected in Korea look genetically diverse.
        83.
        2015.07 서비스 종료(열람 제한)
        Codonopsis lanceolata is a perennial climber. The roots are used as medicinal materials or vegetables. Recently, demand for C. lanceolata is increasing as a healthy food. C. lanceolata is distributed in India and East Asia such as China, Japan as well as Korea. In South Korea, this plant is widely cultivated in Gangwon-do province. No C. lanceolata varieties were developed in Korea. The objective of this study is to analyze genetic diversity of C. lanceolata cultivated in Korea using SSR makers. C. lanceolata roots were collected in each region were cultivated in Chungbuk National University greenhouse. Samples were obtained from fresh leaves of 5 plants from each collection region. The genomic DNA was extracted using CTAB. Genetic diversity was analysed using 4 sets of C. lanceolata SSR makers. PCR was performed in total 20 μL reaction volume containing 20 ng of DNA template, 5 pmole of primers. The genotypes of the analyzed samples were very similar. That means that the genetic diversity of C. lanceolata cultivated in Korea is very low.
        84.
        2015.07 서비스 종료(열람 제한)
        The high quality of gene set is necessary to study the functional research of genes. Although perilla is cultivated as an oil crop and as a vegetable crop in Asian countries such as Korea, Japan, northeast China and Nepal, the reference genome is absent. To assembly perilla gene set, we sequenced the various tissues of perilla (Perilla citriodora) RNA-seq with Illumina HiSeq platform, generating 548,549,314 short reads. When de novo transcriptome assembly was performed with five samples, 86,396 and 38,413 transcripts were assembled as total and representative transcripts, respectively. Using 1,917,424 proteins at Phytozome ver. 9.1, we annotated the perilla assembled transcripts, and 66,139(76.55%) and 24,030(62.55%) transcripts showed the similarity with known plant proteins (E-value < 1e-10) as total and representative transcripts, respectively. Among the diverse molecular functions, we were interested in the regulatory components, such as transcription factor and transcription regulator. Using this data, we identified 499 transcripts annotated the putative transcription factor differentially expressed transcripts. 165 putative transcription factors were significantly expressed in perilla flower and 121 putative transcription factors in both leaf and flower. This study provides the perilla reference gene set and the understanding of the molecular regulation of transcription factor dependent on the tissue.
        85.
        2012.07 서비스 종료(열람 제한)
        The amount of genetic variability of a species is essential for its survival and adaptation in different environments, and studies of genetic diversity using molecular markers are necessary to understand the genetic structure of a population and to orientate effective strategies of germplasm conservation. The aim of current study was to determine the SSR markers that can be used rapidly and reliably to evaluated the pepper of Bulgaria landraces, and applied the markers to assement of introduce genetic diversity of the pepper germplasm. We used 22 polymorphic microsatellite markers to analysis of genetic diversity within 61 pepper collection of Bulgaria landraces germplasm, all SSR primers pairs produced 80 polymorphic and reproducible amplification fragments. An average value of polymorphic information contents (PIC) were 0.334 with a range of 0.061 to 0.63. The mean values of observed (HO) and expected heterozygosity (HE) were 0.383 and 0.154, respectively, indicating a considerable amount of polymorphism within this collection. A genetic distance-based phylogeny grouped into three distinct groups, which was the landrace, moderate and wilde type, genetic distance (GD) value was 0.540. An average day of flowering time was 53 days with a range of 45 to 60 days. The everage od fruit length and width were 9.38cm with a range 2.1 to 23.6cm, and 3.51cm with a range 0.6 to 8.9cm, respectively. Molecular data were complemented with morphological measurements according to the descriptor list for the pepper collection of Bulgaria landraces germplasm.
        98.
        2006.12 KCI 등재 서비스 종료(열람 제한)
        Iris odesanensis Y.N. Lee is one kind of species among 54 endangered plant species designated by the Ministry of Environment in Korea. It is very rare native plant throughout the country. Therefore, this study was conducted to investigate the native Iris odesanensis in Mt. Naeyon for their distribution and ecological characteristics. They were mostly distributed mid-slope of the mountain from 443m to 498m altitude. They were located lower part of valley and provided enough humid condition. They had proper light and humidity conditions as they faced south south west, south south east, and south. They were also located at the places deciduous woody plants were distributed for proper light conditions for spring blooming. Iris flowered to use light at the period before the trees thickly covered with foliage. However this unfavorable light condition caused low percentage as 7.04% of blooming individuals in this study. In herbaceous, Viola chaerophylloides (Regel) W. Becker, Carex siderosticta Hance, Erythronium japonicum Decne., Oxalis obtriangulata Max., Hepatica asiatica Nakai, Lilium tsingtauense Gilg et cetera were appeared well. We propose that proper pruning of upper branches of the deciduous trees is needed for suitable light condition of management of native sites.
        99.
        2006.08 KCI 등재 서비스 종료(열람 제한)
        Happymi is a new sweetpotato variety developed from Mokpo Experiment Station, National Institute of Crop Science(NICS), RDA in 2004, which was for the raw eating and processing. This variety was selected from the cross between Chinmi andMA 3 in 1996, seed
        100.
        2006.06 KCI 등재 서비스 종료(열람 제한)
        orange-red standard cultivar “Baroness” at the National Horticulture Research Institute. It was crossed in 20 and finally selectedin 2004 after the investigation of the characteristics for three years from 202 to 204. “Pearl Red”, red standard flower, has
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