• Title/Summary/Keyword: Cytochrome C oxidase

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New record of two Korean feather mites (Acari: Sarcoptiformes: Astigmata) isolated from water birds

  • Han, Yeong-Deok;Choe, Seongjun;Eom, Keeseon S.;Min, Gi-Sik
    • Journal of Species Research
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    • v.6 no.spc
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    • pp.177-184
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    • 2017
  • Two feather mites, Scutomegninia phalacrocoracis Dubinin and Dubinina, 1940 and Ptiloxenus major ($M{\acute{e}}gnin$ and Trouessart, 1884) are reported for the first time in Korea. Specimens of S. phalacrocoracis and P. major were collected from the great cormorant, Phalacrocorax carbo and great crested grebe, Podiceps cristatus, respectively. The genera Scutomegninia Dubinin, 1951 and Ptiloxenus Hull, 1934 are also new reports for South Korea. Here, we provide morphological descriptions and illustrations of these two species. Additionally, we provide partial sequences of the mitochondrial cytochrome c oxidase subunit I (COI) as DNA barcodes.

Identification of Four Cyst Nematodes using PCR-RFLP in Korea (PCR-RFLP를 이용한 국내 분포 씨스트선충 4종의 동정)

  • Ko, Hyoung-Rai;Kang, Heonil;Park, Eun-Hyoung;Kim, Eun-Hwa;Lee, Jae-Kook
    • Korean Journal of Organic Agriculture
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    • v.27 no.3
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    • pp.353-363
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    • 2019
  • To identify four cyst nematodes (Heterodera schachtii, H. trifolii, H. glycines, H. sojae) that are economically important plant-parasitic nematodes in Korea, restriction fragment length polymorphism (RFLP) by 8 endonucleases (PstI, VspI, AlwI, RsaI, MvaI, EcoRI, Eco72I, Hinf I) was performed based on sequence difference of mitochondrial DNA cytochrome c oxidase subunit I (COI) gene. As a result, species-specific DNA band patterns by RsaI endonuclease were observed in H. schachtii. The specific patterns was in H. trifolii by 3 endonucleases (VspI, AlwI, Hinf I), and was in H. glycines by Hinf I. While, H. sojae was not digested by 4 endonuclease (VspI, AlwI, RsaI, Hinf I). This study showed that four cyst nematodes could be distinguished using RFLP by 4 endonucleases (RsaI, VspI, AlwI, Hinf I) based on the sequence difference of COI gene.

Phylogenetic relationship of ribosomal ITS2 and mitochondrial COI among diploid and triploid Paragonimus westermani isolates

  • Park, Gab-Man;Im, Kyung-Il;Yong, Tai-Soon
    • Parasites, Hosts and Diseases
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    • v.41 no.1
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    • pp.47-55
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    • 2003
  • We compared patterns of intraspecific polymorphism of two markers with contrasting modes of evolution, nuclear ribosomal DNA (rDNA) and mitochondrial DNA (mtDNA), in the lung fluke, diploid and triploid Paragonimus westermani from three geographical regions of Korea. The genetic distances between three populations of Korean diploid and triploid P. westermani showed no significant difference in the nucleotide sequences of the mitochondrial cytochrome c oxidase subunit 1 (mtCOI) and ribosomaal second internal transcribed spacer (ITS2) genes. A highly resolved strict-consensus tree was obtained that illustrated phylogenetically useful information of the ITS2 and mtCOI sequences from diploid and triploid P. westermani.

Four Additional Cases of Diphyllobothrium nihonkaiense Infection Confirmed by Analysis of COX1 Gene in Korea

  • Park, Sang Hyun;Jeon, Hyeong Kyu;Kim, Jin Bong
    • Parasites, Hosts and Diseases
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    • v.53 no.1
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    • pp.105-108
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    • 2015
  • Most of the diphyllobothriid tapeworms isolated from human samples in the Republic of Korea (=Korea) have been identified as Diphyllobothrium nihonkaiense by genetic analysis. This paper reports confirmation of D. nihonkaiense infections in 4 additional human samples obtained between 1995 and 2014, which were analyzed at the Department of Parasitology, Hallym University College of Medicine, Korea. Analysis of the mitochondrial cytochrome c oxidase 1 (cox1) gene revealed a 98.5-99.5% similarity with a reference D. nihonkaiense sequence in GenBank. The present report adds 4 cases of D. nihonkaiense infections to the literature, indicating that the dominant diphyllobothriid tapeworm species in Korea is D. nihonkaiense but not D. latum.

First Report of Echinococcus equinus in a Donkey in Turkey

  • Simsek, Sami;Roinioti, Erifylli;Eroksuz, Hatice
    • Parasites, Hosts and Diseases
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    • v.53 no.6
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    • pp.731-735
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    • 2015
  • A 2-year-old female donkey (Equus asinus) was euthanized in the Pathology Department of Firat University, Elazig, Turkey. Necropsy disclosed the presence of 7 hydatid cysts distributed throughout the lung parenchyma. One of those cysts represented the parasite material of the present study and was molecularly identified through sequencing of a fragment of cytochrome c oxidase subunit 1 (CO1) and nicotinamide adenine dinucleotide dehydrogenase subunit 1 (NADH1) gene, as Echinococcus equinus. The generated CO1 sequence supports the presence of the dominant haplotype as has been described in Europe and Africa. The NADH1 sequence was found similar to sequences reported in equids in Egypt and the United Kingdom. The molecular identification of E. equinus in a donkey is being reported for the first time in Turkey.

The First Human Case of Thelazia callipaeda Infection in Vietnam

  • De, Nguyen Van;Le, Thanh Hoa;Chai, Jong-Yil
    • Parasites, Hosts and Diseases
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    • v.50 no.3
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    • pp.221-223
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    • 2012
  • A 26-year-old man residing in a village of Thai Nguyen Province, North Vietnam, visited the Thai Nguyen Provincial Hospital in July 2008. He felt a bulge-sticking pain in his left eye and extracted 5 small nematode worms by himself half a day before visiting the hospital. Two more worms were extracted from his left eye by a medical doctor, and they were morphologically observed and genetically analyzed on the mitochondrial cytochrome c oxidase 1 gene. The worms were 1 male and 1 female, and genetically identical with those of Thelazia callipaeda. By the present study, the presence of human T. callipaeda infection is first reported in Vietnam.

A Newly Recorded Basket Star of Genus Gorgonocephalus (Ophiuroidea: Euryalida: Gorgonocephalidae) from the East Sea, Korea

  • Kim, Donghwan;Shin, Sook
    • Animal Systematics, Evolution and Diversity
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    • v.31 no.4
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    • pp.311-315
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    • 2015
  • Euryalid specimens were collected from Gonghyeonjin and Daejin, Gangwon-do in the East Sea, Korea at a depth of 250-300 m by fishing nets on November 2013 and August 2014. They were identified as Gorgonocephalus arcticus Leach, 1819 belonging to family Gorgonocephalidae of order Euryalida, which was new to the Korean fauna. Nucleotide sequences of partial mitochondrial cytochrome c oxidase I (mt-COI) gene, which was 569 bp in length, were compared among four Gorgonocephalus species, and were subsequently employed to reconstruct phylogenetic trees using the MP, ML, and BI methods. As a result, no sequence difference was found between the G. arcticus mt-COI gene sequences from Korea and Canada, and the two made a strong monophyletic group. With the newly recorded G. arcticus in Korea, in total, four Gorgonocephalus species have been reported in Korea.

Korean Species of the Genus Elampus (Hymenoptera: Chrysididae: Elampini) with First Discovery of Female of E. musashinus

  • Ha, Hyeong-Hwa;Kim, Jeong-Kyu
    • Animal Systematics, Evolution and Diversity
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    • v.29 no.2
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    • pp.184-187
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    • 2013
  • Korean species of the genus Elampus Spinola is taxonomically reviewed. Korean fauna of the genus Elampus was known by one sepcies, Elampus bidens (F$\ddot{o}$rster). This study reports new discover of another Korean species E. musashinus (Tsuneki). This species was described based on male, and the female has been still unknown. With comparison of partial mitochondrial cytochrome c oxidase I gene sequences, the sex-association of this species is established, the Korean specimens of both sexes completely identical in their sequences targeted. Herein the female description of E. musashinus is presented for the first time. A key to the Korean species, as well as diagnosis and digital images are provided.

New Korean Record of Setarches longimanus (PISCES: Scorpaenidae)

  • Shin, Ui Cheol;Kim, Jin-Koo;Joo, Dong-Soo
    • Fisheries and Aquatic Sciences
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    • v.19 no.2
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    • pp.10.1-10.5
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    • 2016
  • Setarches longimanus (Alcock 1894), in the family Scorpaenidae, was collected from Busan and the coastal waters of Jeju Island, Korea, in January and November 2014, respectively. Two specimens are characterized by XI, 10 dorsalfin rays; 19-21 pectoralfin rays; III, 5 anal fin rays; a second preopercular spine much shorter than the first and third; and an interorbital width 11.3 %-11.6 % of the standard length. We also analyzed 587 base pairs of the mitochondrial DNA cytochrome c oxidase subunit I sequences in order to confirm the taxonomic status of the specimen. As a result, the sequences of our specimen almost corresponded to those of Chinese S. longimanus (genetic distance, d = 0.005), but considerably differed from those of S. guentheri (d = 0.120-0.124). We propose the new Korean names "Ma-su-gam-peng-sok" for the genus Setarches, and "Bul-geun-ma-su-gam-peng" for the species S. longimanus.

New record of limnoriid and asellote species(Crustacea: Malacostraca: Isopoda) from South Korea

  • Song, Ji-Hun;Min, Gi-Sik
    • Journal of Species Research
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    • v.6 no.3
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    • pp.237-240
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    • 2017
  • During a scientific survey of Korean isopod fauna, we discovered two marine isopods, Limnoria segnoides Menzies, 1957 and Munna japonica Shimomura and Mawatari, 2001, which are new records to South Korea. Limnoria segnoides and M. japonica were collected by SCUBA diving from the subtidal zone of Jeju Island and Yangyang-gun in South Korea, respectively. In this paper, we provide diagnosis and illustrations of the two isopods. Additionally, we provide GenBank accession numbers of partial sequences of mitochondrial cytochrome c oxidase subunit 1 (CO1) of two species.