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        검색결과 5

        2.
        2011.05 구독 인증기관·개인회원 무료
        The leaf beetle, Chrysolina aurichalcea (Coleoptera: Chysomelidae), is a pest damaging plants of Compositae. In order to understand the genetic diversity and geographic variation of the species we sequenced a portion of mitochondrial COI gene (658 bp) and complete nuclear internal transcribed spacer 2 (ITS2) collected from seven Korean localities. A total of 18 haplotypes (BARCA01 ~ BARCA18), with the maximum sequence divergence of 3.04% (20 bp) were obtained from COI gene sequence, whereas 17 sequence types (ITS2CA01 ~ ITS2CA17), with the maximum sequence divergence of 2.013% (9 bp) were obtained from ITS2, indicating substantially larger sequence divergence in mitochondrial gene sequence. Phylogenetically, the mitochondrial DNA has shown several haplotypes formed independent groups with substantially high node support (≥ 90%), whereas no such grouping was evidenced for ITS2, indicating different behaviors of the two molecules. Such difference may reflect a diverse dynamics of the species such as biogeographic history, mating behaviors, and also possibly different mode of inheritance of the two molecules, but requires further scrutinized examination of the dataset. In terms of population genetic perspective, overall no population subdivision was detected from both molecules, except for locality 7 (Eocheong islet) from mitochondrial DNA. As more scrutinized analysis is performed, further fruitful inference on the geographic contour of the species might be available.
        3.
        2018.04 서비스 종료(열람 제한)
        Advanced multidetector CT (MDCT) technology provides 2-dimensional (2D) images with 3-dimensional (3D) images. These 3D images (volume rendered, VR images) demonstrates the surface of the body and cutaneous neurofibromas in pa-tients with neurofibromatosis (NF) are well visualized. MDCT is a very useful imaging modality that represents various findings of neurofibromatosis such as cutaneous neurofibromas, central nervous tumors, skeletal anomalies including verte-bral scalloping and dural ectasia, mediastinal masses, lung parenchymal diseases, vascular anomalies, and complicated dis-eases related with NF. Herein, we report three cases with NF presenting cutaneous neurofibromas diagnosed by MDCT; One is NF patient with dural ectasis and meningocele, second case is a patient with NF and horseshoe kidney, third case is a pa-tient with cutaneous and subcutaneous neurofibromas.