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JinGu Lee,AeGyeong Seo,HeeDong Kim,YoungBo Lee2,SangHyun Lee,YoungKyu Park,HaeGil Lee,ChangSung Kang 한국응용곤충학회 2012 한국응용곤충학회 학술대회논문집 Vol.2012 No.05
Stick insect has several peculiarities like parthenogenesis, unique external features and dropping oviposition, so it is very hopeful to use for industrial insect. The oviposition was established by only female without fertilization with sperm of male which was not discovered during this study. The oviposition period was 37.3±14.9 days and the number of eggs per female was 41.5±16.5 eggs. The hatchability was 73.3% at 25℃and 66.7% after low temperature treatment(8℃, 60 days). The developmental periods and the length of egg were 100.9±4.2 days and 0.33±0.0cm, respectively, and the adult's life span was 49.7±16.0days. Differently other research which reported five nymph stage, the developmental stages of nymph showed five(62.9%) or six(37.1%) stages. The duration and the length of nymph increased according to the increase of nymph stage. Stick insect preferred the leaf of American locust, White oak, Chestnut, Bush clover in order but could be reared with food of the leaf of all these trees. Stick insects are herbivorus but made an attack each other when encountered in the small space. For sustaining mass rearing of stick insect, it is needed that the development of artificial diet and high density rearing method.
Barcoding Old Lepidopteran Specimens Using New Designed Specific Primer Pairs
Taeman Han,Wonhoon Lee,Youngbo Lee,Namjung Kim,Shin-ichi Akimoto,Haechul Park 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.10
Using eight universal primers and new designed 315 species-specific primers, we tried to retrieve COI sequences from 45 dried specimens of 36 butterfly species collected from 1959 to 1980. The eight universal primers were entirely failed in PCR amplification and sequencing of all specimens. In the other hand, the 315 primers, targeting fragments of 71–417 bp, generated various lengths of COI sequences ranged from 444 bp to 658 bp from all specimens. Among 284 primer pairs, 26 primer pairs designed for Limenitis camilla, Argynnis niobe, and Brenthis daphne were success to produce COI sequences of congeneric speices, Limenitis doerriesi, Argynnis nerippe, and Brenthis ino. It suggests that the species-specific primers can be applied for analyzing COI sequences of closely related species. Our study reveals that newly designed species-specific primers will be effective to retrieval of COI sequences of old butterfly specimens.
Molecular mapping of QTLs related to cold tolerance at seedling stage in rice
Tae Heon Kim,Yeon-Jae Hur,Saisbeul Lee,Ji-Yoon Lee,Youngbo Son,Sung Hwan Oh,Sang-Ik Han,Jun-Hyun Cho,You-Chun Song,Jong-Hee Lee,Min-Hee Nam,Dong-Soo Park,Yeong-Up Kwon,Dongjin Shin 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
Rice is a staple food crop for more than half of the world population. Severe losses of rice production was caused by various environmental conditions such as cold, heat and flooding annually. Rice is a highly sensitive to low temperature below 15-20 ℃ because of originating from tropical or subtropical climates. Especially, seedling of rice is easily damaged to low temperature and result in seedling yellowing, growth retardation, reduced tillering and yield losses at last. We used a recombinant inbreeding lines (RIL) population of 384 individuals derived from a cross between Hanareum 2, a highly cold sensitive variety and Unkwang, a cold tolerant variety for molecular mapping of QTLs related to cold tolerance. Seedling discoloration of each lines and parents caused by cold response were investigated in field condition after transplanting. And leaf samples of RIL population were collected for evaluation of chlorophyll content using 80% acetone extraction. The seedling of each lines and parents was subjected to low temperate by 5~13 ℃ during 14 days. The cold recovery score (CRS) of RILs was recorded after 4 days recovery period according to standard evaluation system (SES, IRRI). Total of eight QTLs were detected on chromosome 1, 7, 8, 10, 11 and 12 using cold tolerance traits, chlorophyll content, seedling discoloration and cold recovery score in 384 RILs. The qCRS12, which detected on chromosome 12 between two flanking markers id12002113, id12002563 (1.1 Mbp) showed 25 LOD score with 26% of phenotypic variation of cold recovery score in RILs population. The positive allele contributing to cold tolerance came from the cold tolerant parent Unkwang. The result may provide useful information for a marker-assisted breeding program to improve cold tolerant in rice.
( Joonha Lee ),( Inwoo Kim ),( Miae Kim ),( Eunyoung Yun ),( Sunghee Nam ),( Miyoung Ahn ),( Youngbo Lee ),( Jaesam Hwang ) 한국잠사학회 2015 International Journal of Industrial Entomology Vol.31 No.1
In a previous report, we identified several candidate antimicrobial peptides through de novo RNA sequencing of the centipede Scolopendra subspinipes mutilans . Here, we identify and characterize one of these peptides, Scolopendrasin I. We identified the centipede antimicrobial peptide Cecropin from the centipede transcriptome using an SVM algorithm, and subsequently analyzed the amino acid sequence for predicted secondary structure using a GOR algorithm. We identified an alpha helical region of Cecropin and named it Scolopendrasin I. We then assessed antimicrobial and hemolytic activity of Scolopendrasin I. Scolopendrasin I showed antimicrobial activity against various microbes, including antibiotic-resistant Gram-negative bacteria, in a radial diffusion assay. Scolopendrasin I had potent antibacterial activity against acne-associated microbes in a colony count assay and showed no hemolytic activity in a hemolysis assay. In addition, we confirmed that Scolopendrasin I bound to the surface of bacteria via a specific interaction with lipoteichoic acid and lipopolysaccharide, two components of bacterial cell membranes. In conclusion, the results presented here provide evidence that this is an efficient strategy for antimicrobial peptide candidate identification and that Scolopendrasin I has potential for successful antibiotic development.
메뚜기목을 포함한 고등학교 생물(1, 2) 교과서 내 곤충류 종 목록
이영보 ( Youngbo Lee ),윤형주 ( Hyung Joo Yoon ),이경용 ( Kyeong Yong Lee ),김남정 ( Nam Jung Kim ),한태만 ( Tae Man Han ) 한국잠사학회 2015 한국잠사곤충학회지 Vol.53 No.1
Since based on the revised educational curriculum, the insects and spiders in eight biology textbooks I and II of high school are as follows. In class level, two classes, Insecta and Arachnida were investigated and their frequence numbers in the textbooks were a total of 143 times. In order level, 12 orders in insecta, 2 orders in Aranea were appeared in the textbooks. The most appearing frequence number was represented in Lepidoptera (33 times) and then in Araneae (11 times). For each publisher, the most appearing frequencies of insecta and spiders was shown in Gyohaksa (23 times), and then in Hyeongseol and Centurla education research institute (21times, respectively). In the textbooks, four species were found to misidentify in their species name and five mistakes were investigated in their photos and content.
변형 가능한 곡면에서의 디지털 영상 투영을 위한 실시간 기하 보정 시스템
이영보(Youngbo Lee),한상헌(Sanghun Han),김정훈(Junghoon Kim),이동훈(Donghoon Lee),윤태수(Taesoo Yun) 한국HCI학회 2008 한국HCI학회 학술대회 Vol.2008 No.2
본 논문에서는 변형 가능한 곡면에 가상의 텍스쳐를 투영하기 위한 프로젝터 기반의 실시간 기하 보정 시스템을 제안한다. 다수의 대응점들의 위치를 추적하기 위하여 사용되는 마커들은 프로젝터의 영상이 투영되더라도 그 흔적이 남아있어서 투영 영상을 훼손한다. 또한 출력 영상의 사전 기하 보정 과정에서 병목 현상이 발생하기 때문에 실시간 기하 보정 시스템의 구현이 어렵다. 따라서 본 논문에서는 마커 인식 과정에서 마커에 의해 투영 영상이 훼손되는 현상을 막기 위해 눈에 보이지 않는 적외선 마커를 사용하며, NVIDIA의 Cg Toolkit을 이용하여 고속의 GPU 연산을 수행함으로서 자연스러운 실시간 보정 영상의 출력이 가능하다. 본 논문의 실험 결과에서는 눈에 보이지 않는 마커가 그려진 종이 위에서 사용자와의 상호 작용이 가능한 디지털 영상을 투영한다. 이를 통해 증강 현실 기반의 다양한 디지털 콘텐츠 제작이 가능하다. This paper proposes a real-time geometric correction system based on a projector to project digital images onto deformable surface. Markers use to trace lots of corresponding points would spoil the projected image when the projector projects a digital image onto the surface because they leave marks on the surface. In addition, it is difficult to build a real-time geometric correction system since bottlenecks occur through the process of the geometric correction for projecting images. In this paper, we use invisible infrared markers and a vertex shader of GPU using Cg TookKit of NVIDIA in order to eliminate disadvantage and bottlenecks in the process of markers recognition so that it is possible to project natural correction images in real-time. As a result, this system overlays an interactive virtual texture onto the real paper by using the geometric transformation. Therefore, it is possible to develop variation of AR(Augmented Reality) based on digital contents systems.
JinGu Lee,HeeDong Kim,ChangSung Kang,AeGyeong Seo,SangHyun Lee,YoungKyu Park,YoungBo Lee 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.04
Baculum elongatum has a long, thin shape that resembles a twig, propagates by parthenogenesis, changes body color, and drops eggs, all of which suggests its potential in the commercial market, especially as an educational pet insect. This study was carried out to determine the best hatching environment and an alternative or artificial diet for rearing B. elongatum to be developed as a commercial and educational pet insect. Oviposition was performed by females without fertilization by the sperm of males. The oviposition period was 42.2 ± 22.7 days and the number of eggs per female was 109.5 ± 70.5 eggs. The hatch rate was 73.3% at 25°C and 66.7% after low temperature treatment (8°C for 60 days). In nature, B. elongatum overwinters as an egg, but it can be assumed from the results that cold temperatures were not required for hatching. The hatch rate was 98.2% in the treatment using floral foam, fermented sawdust, and leaves. Clover(Trifolium repens) was an excellent diet as it was similar to the host plant and could be used as an alternative diet. The rate of reaching adulthood for the insects was 66.7% on an artificial diet containing 25% acacia leaves. For sustainable mass rearing of nymphs or adults of B. elongatum, a natural diet could be used such as acacia (Robinia pseudoacacia), white oak (Quercus aliena), chestnut (Castanea crenata var. dulcis), and bush clover (Lespedeza bicolor), or an alternative diet such as clover or artificial diet. To rear nymphs and adults of B. elongatum, natural diet such as acacia, white oak, chestnut, or bush clover leaves, or an alternative diet such as clover or an artificial diet can be used.