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Hirtodrosophila 아속 초파리 5종간의 유전적 유연관계
이택준,박제원 한국유전학회 1990 Genes & Genomics Vol.12 No.1
The genetic relationships among the five species of the subgenus Hitrodrosophila, D. sexvittata, D. trilineata, D. alboralis, D. histrioides and D. nokogiri were investigated by isozyme and soluble proteins. The 15 loci were detected electrophoretically in the 10 isozymes. The five loci, Aph-1, α-Gpdh, Mdh-2, Odh, and Sdh were monomorphic in all species, and specially Mdh-2 was same allele. As for the genetic relationship based on the results from the isozyme analysis, D. sexvittata and D. trilineata were found to have the most close genetic relationship (S=0.634), and the relationship between D. nokogiri and D. trilineata showed the farthest (S=0.307). The average genetic similarity among the five species was found to be 0.818. The soluble protein patterns of D. sexvittata and D. trilineata by SDS polyacrylamide gel electrophoresis were similar. The difference of protein pattern among the other 3 species were confirmed. The genetic distance of five species was calculated by means of two-dimensional gel electrophoresis. The genetic distance between D. sexvittata and D. trilineata was 0.1139, the lowest of all, between D. trilineata and D. histrioides, 0.1883, between D. nokogiri and D. sexvittata, 0.4978, the highest of all. The dendrograms established by isozyme and soluble protein analysis had same patterns. Clustered patterns as follows; first, D. sexvittata and D. trilineata were clustered, and D. histrioides, D. alboralis and D. nokogiri followed the first one in order.
이택준,정기영,서상혁,이원용,정진상 대한신경과학회 2006 대한신경과학회지 Vol.24 No.1
We report adult-onset sleep terrors in a patient with idiopathic Parkinson's disease. A 42-year-old woman presented with abnormal behaviors during sleep. Neurologic examination revealed mild hypomimia, resting tremor and bradykinesia in her right upper limb indicating early Parkinson's disease. An episode would consist of sitting up in bed, screaming, then clapping her hands and more talking, shouting, screaming, and appearing frightened. Polysomnography documented 2 episodes of parasomnia which occurred in slow wave sleep indicating sleep terrors.
A New Record of Sea Urchin (Echinoidea: Stomopneustoida: Glyptocidaridae)from the Yellow Sea, Korea
이택준,신숙 한국동물분류학회 2013 Animal Systematics, Evolution and Diversity Vol.29 No.4
Sea urchins were collected from waters adjacent to Daludo Island and Mohang harbor in the Yellow Sea, and were identified into Glyptocidaris crenularis A. Agassiz, 1864, of the family Stomopneustidae within the order Stomopneustoida, based on morphological characteristics. This species has two unique morphological characteristics: the ambulacral plate is composed of three primary plates and two demi-plates, and a valve of globiferous pedicellaria consists of with a well-developed long terminal hook and a unique stalk equipped with one to six long lateral processes covering membranes, resembling fins. It is newly recorded in Korea and is described with photographs. This brings the total number of sea urchins reported from the Yellow Sea,Korea, to seven.
이택준,신숙 한국동물분류학회 2011 Animal Systematics, Evolution and Diversity Vol.27 No.3
Some echinoids were collected from the coast of Gangwon-do during the period from November 2008 to July 2011 and were identified on the basis of morphological characteristics and molecular analysis of cytochrome oxidase subunit I mitochondrial DNA. Among them, Strongylocentrotus pallidus (Sars, 1871) belonging to the family Strongylocentrotidae of the order Camarodonta is reported for the first time in Korea and is redescribed. The genetic differences ranged from 0.038 to 0.139 between S. pallidus and four other species of genus Strongylocentrotus, but ranged from 0.002 to 0.005 between Korean specimens and GenBank data of S. pallidus. This species is widely distributed in cold sea water along the western part of the North Pacific and the Northwest Atlantic.
Echinoderm Fauna of Chuuk, The Federated States of Micronesia
이택준,신숙 한국동물분류학회 2014 Animal Systematics, Evolution and Diversity Vol.30 No.2
Micronesia is an island nation located north of Papua New Guinea in the Pacific Ocean. A survey wasconducted on Chuuk, which is one of the four main islands of Micronesia, from 11-25 Nov 2012. Echinoderms collected at one intertidal area as well as at 16 SCUBA diving points of 10-40 m depths in thesubtidal zone were identified based on morphological characteristics. In total, 35 species from 165 individualswere identified: two crinoids, eight asteroids, four ophiuroids, seven echinoids, and 14 holothuroids. Amongthem, one asteroid, one ophiuroid, one echinoid, and two holothuroids were newly recorded from Micronesia.
A Newly Recorded Sea Star (Asteroidea: Forcipulatida: Asteriidae) from the East Sea, Korea
이택준,신숙 한국동물분류학회 2011 Animal Systematics, Evolution and Diversity Vol.27 No.2
Sea stars were collected with fishing nets between depths of 40-150 m from the Gangwon-do coastal region,East Sea. Specimens were identified as Evasterias echinosoma Fisher, 1926 belonging to the family Asteriidae,which is new to the Korean fauna. This species was characterized by strong external spines and a general size of more than 200 mm, thus the largest sea star identified in Korea to date. Its morphological characteristics are described here with photos. Thirty two asteroid species including E. echinosoma have been reported from the East Sea of Korea.