정종우 교수

Anopheles (Anopheles) sinensis [Wiedemann (1828)] is a member of the hyrcanus species group, and it has been incriminated as the natural or experimental ma-laria vectors in the Republic of Korea, Japan, China, and Indonesia. In Thailand, however, An. sinensis seems to be of little medical importance. Hybridization tests among the three iso-female lines (isolines) of An. sinensis [i.e., Form A (X, Y1) and Form B (X, Y2) (Thailand strain), and Form B (X, Y2) (Korean strain)] were established based

The pinewood nematode Bursaphelenchus xylophilus is the causative agent of pine wilt disease, which has caused heavy economic losses to the South Korean forest industry. In this study, we investigated the genetic variation among South Korean pinewood nematodes using newly developed microsatellite loci. In order to ensure sufficient templates for the amplification of multiple loci required for individual identification,we employed an amplifying step of restricted fragments during the microsatelli

We determined the complete sequences of six size variants of intergenic spacer (IGS) region from one individual of the malaria vector mosquito species, Anopheles sinensis. All six size variants observed in this study show almost the same basic primary struc-ture in which three repeat regions (A, B, and C) are interspersed by highly conserved nonrepeating sec-tions. In contrast to the well-ordered subrepeating patterns found in A and C, the repeat region B dis-plays extremely variable and complic

In this study, the species composition and population genetic properties of the sea slater, Ligia, in South Korea were investigated using mitochondrial and nuclear gene sequences. Two groups of sea slaters, genetically isolated from each other, a Western Group (WG) and an Eastern Group (EG) were identified. These groups exhibited considerable genetic divergence from Ligia exotica, previously recorded as a species inhabiting this country. These results indicate that there may be two species of Li

Freshwater crayfishes are divided into two superfamilies, and one of which exists only in the Southern Hemisphere (Parastacoidea), while another has been found only in parts of the Northern Hemisphere (Astacoidea). Although several conflict opinions have been revealed, monophyly of freshwater crayfishes, including the monophyly of crayfish superfamilies, are commonly accepted. The phylogenetic relationships among crayfish subgroups of the Northern Hemisphere, however, are rather controversial du

The pinewood nematode Bursaphelenchus xylophilus causes pine wilt disease and is a serious economic concern for the forest industry of South Korea. To achieve effective control with limited resources, it is necessary to clarify the transmission routes and mechanisms of dispersal of this organism. Highly polymorphic and easy-to-use molecular markers can be used for investigating this aspect. In this study, we evaluated the usefulness of amplified fragment length polymorphisms (AFLPs) for investig

The genetic pattern of the Y-chromosomal short tandem repeat (Y-STR) haplotypes of 542 unrelated males having the five most common surnames was analyzed to evaluate their usefulness for Korean forensic science and to provide the basic information for Korean genetic genealogy. We identified 439 Y-STR haplotypes, with 385 (87.7%) being found once. Each of the most common Korean surnames examined here showed high haplotype diversity (＞0.9949), indicating that Y-STR haplotypes are very heterogeneous

Aquatic Oligochaeta is a notable animal group in freshwater environment such as streams, rivers and lakes in view of its biomass and species richness. Taxonomic studies of this group, however, have hardly been performed in Korea. Here five naidid oligochaete species are reported - Slavina appendiculata, Pristina longiseta, Pristina biserrata, Chaetogaster diaphanus and Nais variabilis - from the Seokhyeoncheon Stream in Yangju and from the Changreungcheon Stream in Goyang, Gyeonggi-do. Aquatic o

The introduced exotic species has often caused severe problems to the native ecosystem. One of such species is the freshwater fish gengorobuna (Carassius cuvieri) introduced from Japan. The first step to assess harmful effects of this species on the Korean freshwater ecosystem is to discriminate it from the most similar native crucian carp (Carassius auratus). Because traditional morphological identification often gives unreliable results due to their highly similar phenotype, a new more efficie

Tubificid oligochaetes are common and frequently dominant in freshwater benthic habitats. They are sotolerant to water pollution that they are often used as biological indicators. Faunistic studies of Koreanfreshwater oligochaetes have been actively conducted recently. The most well studied oligochaete family inKorea is the tubificids following the naidids. Nine species of tubificids have been reported so far. Nevertheless, many species of tubificids still remain to be discovered in Korea. In th

An aquatic oligochaete species, Ripistes parasita (Schmidt, 1847) collected from Ganghwado Island in Korea,is described and illustrated. Specimens inhabiting on aquatic vegetation at the edge of the streams were collected with a plankton hand net. Morphological features of present specimens such as the number of long hair chaetae per bundle and their length in VI-VIII, and shape and size of ventral chaetae are concordant with those of previous reports on this species. The genus Ripistes contains

본 연구의 목적은 생태 감수성과 배려적 사고의 요소들을 유기적으로 접목하여, 초등학교 고학년을 대상으로 한 교육 프로그램을 개발하고, 이것의 실행 가능성을 탐구하는 것이다. 이를 위해 우선 문헌 연구를 통해 생태 감수성 개념을 구성하는 요소를 분석 및 재구성한 다음, 철학교육 프로그램(IAPC)의 다차원적 사고 모형(MTA) 구성 요소 중 배려적 사고 개념에서 제안하고 있는 가치 기준들과의 유기적 연결을 시도해보았다. 그 결과, 생태 감수성 개념은 자연 그 자체에 대한 느낌과 자연을 위해 공감하는 것을 핵심 구성 요소로 삼고 있었음을 알 수 있었다. 또한, 배려적 사고는 그 개념 자체가 이미 가치 부여적 특징을 가지고 있기 때문에 부분적인 것들을 연결해나갈 수 있는 인지적 성격을 가지게 되므로, 생태 문제와 관련하여 정서, 판단, 행동의 유기적 연결에 기여할 수 있다고 보았다. 이에 본 연구에서는 생태 문제에 대한 느낌과 공감 범주에 포함되어 있다고 여겨지는 경이로움, 생명애, 감정

The Korean freshwater crayfish, Cambaroides similis, has recently suffered from range reduction and habitat degradation caused by environmental changes and water pollution. For the conservation and restoration of this species, it is necessary to understand the current population structures of Korean C. similis using estimation of their genetic variation. In this study, eight microsatellite loci were developed and characterized from 49 individuals collected from four locations: one population fro

Background The genetic structure of marine organisms in the East Asian region has long been a subject of interest. Two grapsid crab species, Hemigrapsus penicillatus (De Haan, 1835) and Hemigrapsus sanguineus (De Haan, 1835), are commonly found in the rocky intertidal zones around this region. They are known to spread via larval migration, which makes them an appropriate model species for observing the genetic structure of East Asian intertidal invertebrate animals. Objective We investigated the

To investigate the origin of Koreans, we examined the 12‐locus Y‐chromosome short tandem repeat (Y‐STR) variation in a sample of 310 unrelated males from three localities (Gochang,Andong and Geoje) in Korea and statistically analyzed the previously published four Y‐STR databases (n = 1655) of Korean population. The median joining network of 9‐locus Y‐STR haplotypes inferred as haplogroup O2b‐SRY+465 showed a “star cluster” indicative of a population expansion from a centrally positioned haplotyp