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Diagnostic Molecular Markers Against Internal Apple Feeding Insects
Chung Ryul Jung,Yerim Son,Yonggyun Kim 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
Three insect pests internally feed pome fruits in Korea. These include oriental fruit moth (Grapholita molesta), plum fruit moth (Grapholita dimorpha) and peach fruit moth (Carposina sasakii). Molecular markers discriminating these three species were developed using PCR-RFLP technique. Mitochondrial (mt) genomes were analyzed to locate polymorphic loci. Six mtDNA regions (CO-Ⅰ, CO-Ⅱ, CB, 16SrRNA-12SrRNA, ND3, ND4) of G. dimorpha were cloned and sequenced. These six sequences of G. dimorpha were aligned with those of C. sasakii and G. molesta to determine polymorphic restriction sites. Predicted PCR-RFLP markers were confirmed with known insect samples. With the validated PCR-RFLP markers, field male adults collected in traps baited with rubber sept lures impregnated with different ratios of major sex pheromone components of G. molesta were analyzed.
Development of Optimal Sex Pheromone Lures for Effective Monitoring in Two Grapholita Congener
Chung Ryul Jung,Yonggyun Kim,Seong Ho Kim,Hyun Hwan Kim 한국응용곤충학회 2016 한국응용곤충학회 학술대회논문집 Vol.2016 No.04
Two Grapholita congener, G. molesta and G. dimorpha have difference in several biological characters such as flight time, emerging number/year, damage site, pupation site, and mating time although their host plants were similar. As a problem, cross-trapping was identified in each trap for monitoring. Effects on species-specific lure using minor sex pheromone components were observed in host plant orchards (apple, pear, peach, and plum) for continuative two years. Treatments of various ratios (0 to 10%) of Z8-12OH to G. molesta lure (Z8-12Ac/E8-12Ac = 95:5) allowed to increase the attraction of G. molesta, but not of G. dimorpha male. Other two minor components (14Ac and 12Ac) to G. dimorpha lure (Z8-12Ac/E8-12Ac = 85:15) were not showed species-specific responses. However, 10% treatment of Z8-14Ac to G. dimorpha lure was showed that G. molesta was decreased significantly although G. dimoprha was not affected. E8-14Ac treatment to new G. dimorpha lure (Z8-12Ac/E8-12Ac/Z8-14Ac = 85:15:10) not affected to attraction of two species. From these results, we suggest that optimum ratios for species-specific monitoring of G. molesta and G. dimorpha are Z8-12Ac/E8-12Ac/Z8-12OH = 95:55:5 and Z8-12Ac/E8-12Ac/Z8-14Ac = 85:15:10, respectively.
Jung, Young-Ok,Kim, Inje,Kim, Suho,Suh, Chang-Hee,Park, Han Jung,Park, Won,Kwon, Seoung Ryul,Jeong, Jae Cheon,Lee, Yun Jong,Ryu, Hee Jung,Park, Young Bae,Lee, Jisoo,Lee, You-Hyun,Seo, Young Il,Chung, The Korean Academy of Medical Sciences 2010 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.25 No.4
<P>The objective of this study was to investigate clinical and radiographic features and gender differences in Korean patients with adult-onset ankylosing spondylitis. Multicenter cross-sectional studies were conducted in the rheumatology clinics of 13 Korean tertiary referral hospitals. All patients had a confirmed diagnosis of ankylosing spondylitis according to the modified New York criteria. Clinical, laboratory, and radiographic features were evaluated and disease activities were assessed using the Bath ankylosing spondylitis disease activity index. Five hundred and five patients were recruited. The male to female ratio was 6.1:1. Average age at symptom onset was 25.4±8.9 yr and average disease duration was 9.6±6.8 yr. Males manifested symptoms at a significantly earlier age. HLA-B27 was more frequently positive in males. Hips were more commonly affected in males, and knees in females. When spinal mobility was measured using tragus-to-wall distance and the modified Schober's test, females had significantly better results. Radiographic spinal changes, including bamboo spine and syndesmophytes, were more common in males after adjustment of confounding factors. In conclusion, we observed significant gender differences in radiographic spinal involvement as well as other clinical manifestations among Korea patients with adult-onset ankylosing spondylitis. These findings may influence the timing of the diagnosis and the choice of treatment.</P>