http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
[PA-0014] Detection of SNPs variations in the seed storage protein gene involved in β-conglycinin
Soo-Kwon Park(Soo-Kwon Park),Jung-Kyung Moon(Jung-Kyung Moon),Sang-Beom Lee(Sang-Beom Lee),Dool-Yi Kim(Dool-Yi Kim),Mi-Suk Seo(Mi-Suk Seo),Yu-Na Kim(Yu-Na Kim),Gyu-Tae Park(Gyu-Tae Park),June-Yeol Cho 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
A potential link between miRNA expression and fruit development
June Hyun Park,Dong-Gyu Hwang,Jae Yun Lim,Donghyun Kim,Yourim Choi,Soyoung Kim,Gregory Reeves,Chanseok Shin 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
MicroRNAs (miRNAs) are a class of non-coding RNAs of approximately 21-nt which play important roles in regulating gene expression in plants. Although many miRNA studies have focused on a few model plants, the miRNAs and their target genes remain largely unknown in pepper, one of the most important crops cultivated worldwide. Here we employed high-throughput small RNA sequencing to extensively identify miRNAs in pepper from 10 different libraries, including leaf, stem, root, flower, and six developmental stage fruits. Based on bioinformatics pipeline, we successfully identified 29 and 35 families of conserved and novel miRNAs, respectively. We noticed that some miRNAs, whose targets were validated experimentally in this study, exhibited prominent changes in expression levels during fruit development stages. From the qRT-PCR analysis of the target mRNAs, including the SBP-transcription factor and F-box protein, we found that expression of these two target mRNAs gradually decreased in general during fruit development and was negatively correlated with the expression of their corresponding miRNAs. The validation of miRNA-directed cleavage of these target mRNAs, combined with the results of qRT-PCR analysis, likely suggests that some miRNAs in pepper may play a role in fruit development. Conclusively, our study first utilizes high-throughput sequencing to identify and characterize conserved and novel miRNAs and their targets in pepper, providing a basis for understanding the functional roles of miRNAs in pepper.
Park, June Gyu,Cho, Kyuman The Optical Society 2016 Applied Optics Vol.55 No.9
<P>A new high-sensitivity homodyne in-phase and quadrature (I/Q) -interferometer scheme for measuring the tilt change of a target is presented. The new tilt sensor is a Mach-Zehnder interferometer folded by the target, in which the phase change is induced by the in-plane tilt change of the target but is not sensitive to any other motions. The interferometer is specially designed to minimize interferences caused by environmental perturbations. The induced phase is directly measured by using the I/Q-demodulation scheme. The tilt sensor exhibits an excellent sensitivity 10 prad/Hz(1/2) at a frequency slightly above 1 Hz and a 0.4 prad/Hz(1/2) at a frequency higher than 30 Hz. (C) 2016 Optical Society of America</P>
Sperm Fertility of Transgenic Boar Harboring hEPO Gene is Decreased
Park Chun-Gyu,Kim Sung-Woo,Lee Poong-Yeon,Han Joo-Hee,Lee Hyun-Gi,Byun Sung-June,Yang Boh-Suk,Lee Chang-Hyung,Lee Hoon-Taek,Chang Won-Kyong,Park Jin-Ki 한국동물생명공학회(구 한국동물번식학회) 2006 Reproductive & developmental biology Vol.30 No.1
This study was conducted to compare the reproduction ability of the wild type boar and recombinant human erythropoietin (hEPO) transgenic boar semen. Ejaculated boar semen was analyzed by flow cytometry, Elisa and IVF methods. In experiment 1, flow cytometric analysis showed that the live sperm ratio of transgenic boar sperm significantly lower (P<0.05) than that of wild type boar after incubation at 20, 22, 24 and 26 hr. In experiment 2, the presence and levels of various cytokines (IL-6, IL-10 and TNF-α) to related animal reproduction in the seminal and blood plasma were examined using specific enzyme immunoassay. There was no significant difference between both groups. In experiment 3, the fertilizing capacity and developmental ability of both boar sperm were compared. The transgenic boar sperm had a significantly low capacity of penetration, sperm-zona binding, embryo development, and blastocyst formation compared to wild type sperm (P<0.05). These results suggest that transgenic boar sperm harboring hEPO gene has low sperm viability than wild type boar, and it is a reason to decrease of fertility and litter size.
Novel Approach to Improve the Optical Performance by Machining Process Without Surface Finishing
June Gyu Park,Dong-Ho Lee,Hong-Seung Kim,Woo-Jong Yeo,Minwoo Jeon,배지용,Dong Uk Kim,Kye-sung Lee,Geon-Hee Kim,Ki Soo Chang,I Jong Kim 한국정밀공학회 2021 International Journal of Precision Engineering and Vol.8 No.5
With the increase in dimensions of optical elements in addition to ever rising demand for aspherical optics, the millimeterscale periodic waviness that is naturally produced by machining (such as diamond turning) process in precision optical engineering has been one of the most crucial issues in the development of high surface quality optical elements. Even an extremely small waviness can affect the laser beam profile significantly through interference caused by Bragg scattering. This paper presents a novel method for improving a laser beam profile by utilizing the characteristics of Bragg scattering without requiring established final surface finishing processes such as optical polishing. By engraving an artificial periodic structure with a period of a few hundred microns, the Bragg scattering angle that influences the formation of interference fringes in the laser beam profile was drastically enlarged. Consequently, the quality of the beam profile was improved at a propagation distance where the 0th and 1st (− 1st) order beam modes are spatially separated, only by diamond turning machining without the surface finishing process. In addition, this approach represents an important contribution to green technology, which seeks energy saving and waste reduction in the optical surface manufacturing process.