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전자 현미경상 Epinephrine 과립이 관찰된 Zuckerkandl 기관에 발생한 Norepinephrine 분비성 갈색세포종 1예
이원석,김의숙,이강룡,이정아,장지정,선우인철,김대하,이광섭,백영주 대한내분비학회 1996 Endocrinology and metabolism Vol.11 No.2
Extraadrenal pheochromocytomas developed from the paraganglia other than adrenal medulla are uncommon tumors. Such lesions have been reported that as much as 10% of retroperitoneal paragliomas arise outside the adrenal gland. But their incidence and prognosis are changing partly as a result of progression in developmental mechanism, diagnostic tools and concepts including ultrastructure, immunohistochemistry. The ultrastructure of chromaffine neoplasm from adrenal and extraadrenal tissues has been studied with chrornaffine granule specificity and type of catecholamine content. With rare exceptions, extraadrenal chrornaffine tumor mainly has high concentration of norepinephrine which is suggested as dict relationship to numoruos electrone dense granular bodies in the cell cytoplasrm. High or intermediate level of epinephrine in tissue is associated with cytoplasmic granular bodies of much less density. Recently we experienced the exception, a case of norepinephrine secreting pheochrom-ocytoma in the organ of Zuckerkandl with epinephrine granules in cytoplasm and this discrepancy probably due to the plasticity - the differences in developmental process and local factors between adrenal medulla and extraadrenal tissues(J Kor Soc Endocrinol 11:233 ~239, 1996).
진균구로 오인된 낭포내 응혈을 보인 23세 여자에서의 선천성 낭포성 유선종 폐기형 1례
이강룡 ( Gang Ryong Lee ),이군순 ( Kun Sun Lee ),주인규 ( In Kyu Joo ),박준옥 ( June Ock Park ),최승준 ( Seung Jun Choi ),이원석 ( Won Seok Lee ),김의숙 ( Eui Sook Kim ),이규현,김대하 ( Dae Ha Kim ),이광섭 ( Gwang Seob Lee ),한영숙 ( 대한결핵 및 호흡기학회 1999 Tuberculosis and Respiratory Diseases Vol.46 No.1
Development of traditional wine using biomass from alcoholic fermentation by Phellinus sp. mycelium
Hak-Seob Lim,Gang-Young Lee,Eun-Jung Jung,Won-Su Lee,Young-Kwang Ju,Min-Jeong Seo,Ji-Eun Kim,Tae-Yeon Kim,Hey-Rin Lee,Kyung Tae Chung,Byung Tae Choi,Young Hee Kim,Yong Kee Jeong 한국생명과학회 2006 한국생명과학회 심포지움 Vol.47 No.-
Mapping of QTLs for stem diameter in MGRIL using CAPS markers
Hyun-Ju Lee,In-Seon Jeong,Hyeonso Ji,Gang-Seob Lee,Ung-Han Yoon,Jang-Ho Hahn,Tae-Ho Kim 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
The next-generation sequencing (NGS) technology is being used for more effective genetic mapping and genome analysis. In this study, we performed whole-genome sequencing on the genomic DNA of Milyang23 and Gihobyeo using NGS and developed new cleaved amplified polymorphic sequence (CAPS) markers based on the single nucleotide polymorphisms (SNPs) in coding sequence between these varieties. Approximately, sequences of 60x coverage of the Nipponbare reference genome on average were obtained following Illumina sequencing. Totally, 1,726,798 SNPs between Milyang23 and Gihobyeo were detected. Among them, 149 SNP were selected for CAPS markers and located on genetic map with previously reported 219 PCR-based DNA markers. This map was applied to the detection of quantitative trait loci (QTLs) for stem internode diameters, culm length and panicle length in rice with MGRIL population. Newly 6 QTLs were detected for culm length (CL) and stem diameter (ID) traits including the first internode diameter (I1D), third internode diameter (I3D), and fourth internode diameter (I4D). Among those QTLs, qI1D5 and qCL5 had relatively higher LOD score and explained 8.99% and 4.24% of total variation. This study showed that the NGS allowed the rapid discovery of a large number of SNPs for CAPS marker. Only very small portion of SNPs through re-sequencing were used in this study. Furthermore, the results of QTL analysis described above shows relevance of molecular markers in mapping genes for useful traits.
Map-based cloning of SUI4 gene which controls internode elongation in rice
Hyeonso Ji,Gang-Seob Lee,Doh-Won Yun,Seung-Bum Lee,Seok-Chul Suh,Moo-Young Eun 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
Internode elongation is an important agronomic trait in rice that is associated with lodging, yield, and flooding adaptation. We identified a novel rice mutant line showing shortened uppermost internode among the rice Ac/Ds insertional mutant population and named it shortened uppermost internode 4 (sui4). The phenotypes of F1 plants and F2 plants from the cross of sui4 with its original variety, Dongjin, indicated that the SUI4 gene shows incomplete dominance or semidominance. Because the Ds genotypes did not co-segregate with the sui4 phenotypes, we performed mapping of this gene with 273 F2 plants from a cross between sui4 and Milyang23. Primary mapping revealed that the SUI4 locus was located between the S07012 and S07015 markers on rice chromosome 7. Further fine mapping narrowed down the location of SUI4 to the 1.1-Mbp interval of RM1253-S07015. Using re-sequencing data of this mutant along with its original variety, Dongjin, and five other varieties, we found six sui4 specific SNPs occurred within the genic region of five genes in the fine-mapped interval. Among them, one SNP is in exon, while the other five SNPs are in intron. This SNP in exon occurred in the miR172 binding site of a gene encoding AP2 domain transcription factor, which seems to interrupt suppression of this gene activity by miR172. We isolated the genomic region of this gene from sui4 and transformed the wild type variety, Dongjin. The transgenic plants showed remarkably shortened internodes, which indicates that this AP2 domain transcription factor gene is the SUI4 gene.
Up-dating of new dCAPS markers for mapping yield-related traits using MGRIL
Ye-Ji Lee,Hyun-Ju Lee,In-Seon Jeong,Seon-Hwa Bae,Hyeon-So Ji,Gang-Seob Lee,Ung-Han Yoon,Jang-Ho Hahn,Tae-Ho Kim 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
The next-generation sequencing(NGS) technology is being used for more effective genetic mapping. In previous study, we obtained 60x coverage of sequence from Milyang23 and Gihobyeo on average comparing with Nipponbare reference genome. Also, we developed new derived cleaved amplified polymorphic sequence(dCAPS) markers based on the single nucleotide polymorphisms(SNPs) in coding region sequence(CDS) between these varieties. Totally, 1,726,798 SNPs between Milyang23 and Gihobyeo were detected. Among them, 146 SNP were selected for making dCAPS markers and located on genetic map with previously reported 219 PCR-based DNA markers. The map was applied to the detection of quantitative trait loci(QTLs) for stem internode diameters, culm length and panicle length within MGRIL population, and six QTLs with relatively high LOD score were found at three chromosomes; culm length and stem diameter including the first internode diameter, third and fourth internode diameter. This study showed that the NGS allowed the rapid discovery of a large number of SNPs for dCAPS marker. So, we tried to find out more single nucleotide polymorphisms(SNPs) which were located on the whole genome sequence, such as un-translated region(UTR), intron, Inter-region and coding region sequence(CDS) between Milyang23 and Gihobyeo varieties. And we collected phenotypic information about culm length, panicle length, four stem internode diameters and panicle number in rice MGRIL population for QTLs. Furthermore, results of QTL analysis described above will shows relevance of molecular markers in mapping genes for useful breeding.
Selection of salt-tolerant rice mutant lines from Ac/Ds insertional mutant population
Hyeonso Ji,Hakbum Kim,Gang-Seob Lee,Doh-Won Yun,Ung-Han Yoon,Tae-Ho Kim 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
In order to find new genetic sources of rice salt tolerance, we did screening with about 10,000 rice mutant lines created by Ac/Ds insertional mutagenesis. First, we raised rice seedlings with media soil on 0.7% NaCl solution and selected 71 putative salt tolerant lines and analyzed their Ds insertion sites. We tested their salt tolerance by growing seedlings on MS medium containing, 0 mM, 150 mM, and 250 mM NaCl. Also, their seedling salt tolerance were evaluated by growing on Yoshida nutritional solution containing 0.6% NaCl. Finally, we selected eight mutant lines showing increased seedling salt tolerance compared with wild type variety, Dongjin, repeatedly. We grow them in rice field and investigated their agronomic traits such as heading time, culm length, panicle length, and panicles per hill. Among them two lines which were named Salt10 and Salt23 and showed favorable agronomic characteristics were crossed with Dongjin for further genetic analysis and mapping the causative gene variation.
Identification of genetic polymorphisms in Korean rice accessions by Whole-genome sequencing
In-Seon Jeong,Ung-Han Yoon,Gang-Seob Lee,Hyeon-So Ji,Hyun-Ju Lee,Tae-Ho Kim 한국육종학회 2012 한국육종학회 심포지엄 Vol.2012 No.07
Advances in genome sequencing technologies have aided discovery of millions of genome-wide DNA polymorphisms, single nucleotide polymorphisms (SNPs) and insertion-deletion (InDels), which are an invaluable resource to analyze genetic diversity in a population. We performed whole-genome resequencing of ten Korean rice accessions including six cultivars and four mutant lines. A total of 2,447 million raw reads were generated with over 58x coverage and detected 3,240,025 DNA polymorphisms between the Korean rice accessions and Nipponbare as reference genome. We observed that in ten Korean rice accessions, the frequency of potential SNPs was estimated to be one per 2.1kb on Nipponbare (382Mb). Potential SNPs were classified into two types, homozygous SNP and heterozygous SNP, which approximately 87% of the total was homozygous SNPs from ten accessions and heterozygous SNPs accounted for 13%. According to annotation of DNA polymorphisms, 634,620 SNPs were found in gene region, and only 169,738 SNPs were occurred in coding region. Altogether, 86,251 non-synonymous SNPs were located on 76,891 genes. We also examined genes which had at least one SNP in all ten accessions. It was estimated that the total of 290 genes had one or more non-synonymous SNPs and 25 genes had only synonymous SNPs. These genes were functionally classified based on gene ontology (GO). These DNA polymorphisms obtained from our result will provide an invaluable resource to identify molecular markers and genes associated with diverse traits of agronomical importance.
In-Seon Jeong,Ung-Han Yoon,Gang-Seob Lee,Hyeon-So Ji,Hyun-Ju Lee,Tae-Ho Kim 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
With the rapid development of sequencing technologies, next-generation sequencing is widely utilized for molecular breeding in several crops including rice. We performed whole genome resequencing of ten Korean rice accessions including six cultivars and four mutant lines. In total, 2,448 million raw reads were generated with over 58x coverage of Nipponbare genome. We mapped the reads from each of the ten accessions onto genomic sequence of japonica rice cultivar, Nipponbare. We detected 3,144,016 SNPs, which estimated to be one per 2.2kb on average. We found SNPs in genes that have been reported to be involved in rice flowering time regulation and bacterial blight resistance among ten rice accessions. Unmapped region against Nipponbare genome occupied about 1 ~ 2% in each accession. Over 50% of the unmapped region were found in the repeat region. The minimum length of gap in all accessions were 1bp and the maximum length of gap was 45,967bp in Ilpum. We also identified 3,497 possible gene loss events within these unmapped regions. The frequency of gene loss in each chromosome ranged from 33 on chromosome 5 to 913 on chromosome 11. The genetic variations we detected among ten rice accessions will provide invaluable resources for identification of genes associated with diverse traits of agronomical importance for molecular breeding.