• 제목/요약/키워드: subfamily classification

검색결과 13건 처리시간 0.024초

Molecular Phylogeny of the Subfamily Tephritinae (Diptera: Tephritidae) Based on Mitochondrial 16S rDNA Sequences

  • Han, Ho-Yeon;Ro, Kyung-Eui;McPheron, Bruce A.
    • Molecules and Cells
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    • 제22권1호
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    • pp.78-88
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    • 2006
  • The phylogeny of the subfamily Tephritinae (Diptera: Tephritidae) was reconstructed from mitochondrial 16S ribosomal RNA gene sequences using 53 species representing 11 currently recognized tribes of the Tephritinae and 10 outgroup species. The minimum evolution and Bayesian trees suggested the following phylogenetic relationships: (1) monophyly of the Tephritinae was strongly supported; (2) a sister group relationship between the Tephritinae and Plioreocepta was supported by the Bayesian tree; (3) the tribes Tephrellini, Myopitini, and Terelliini (excluding Neaspilota) were supported as monophyletic groups; (4) the non-monophyletic nature of the tribes Dithrycini, Eutretini, Noeetini, Tephritini, Cecidocharini, and Xyphosiini; and (5) recognition of 10 putative tribal groups, most of which were supported strongly by the statistical tests of the interior branches. Our results, therefore, convincingly suggest that an extensive rearrangement of the tribal classification of the Tephritinae is necessary. Since our sampling of taxa heavily relied on the current accepted classification, some lineages identified by the present study were severely under-sampled and other possible major lineages of the Tephritinae were probably not even represented in our dataset. We believe that our results provide baseline information for a more rigorous sampling of additional taxa representing all possible major lineages of the subfamily, which is essential for a comprehensive revision of the tephritine tribal classification.

Features of Foliar Epidermis and Stomata in Some Euphorbiaceae Subfamily Oldfieldioideae

  • Raju, Vatsavaya S.
    • Journal of Plant Biology
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    • 제31권2호
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    • pp.143-153
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    • 1988
  • The features offoliar epidermis and stomata are studied in nine genera representing all the four tribes of the subfamily Oldfieldioideae of the family Euphorbiaceae. On both sides of the leaf, the cuticle is generally smooth with more or less straight epidermal anticlinal walls. The epidermal cells are polygonal and their size varied with species on both sides. The costal cells are either distinct (Dissiliaria, Oldfieldia, etc.) or indistinct (Caletieae). In the taxa examined, the stomata are confined to the abaxial epidermis and diffusely orientated except in Caletieae. They are basically of brachyparacytic type; however, they are anomocytic in Androstachys and of a special type in Mischodon. A systematic consideraton of these features showed that they aer not only useful in revealing relationships within the subfamily but also of acid in the classification.

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Classification of Peroxiredoxin Subfamilies Using Regular Expressions

  • Chon, Jae Kyung;Choi, Jongkeun;Kim, Sang Soo;Shin, Whanchul
    • Genomics & Informatics
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    • 제3권2호
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    • pp.55-60
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    • 2005
  • Peroxiredoxins (Prx's) are a superfamily of peroxidases that are ubiquitous in all super-kingdoms. Previous biochemical and structural studies have suggested that Prx's could be divided into five subfamilies (1-Cys, Typical 2-Cys, Atypical 2-Cys C-, L- and R- types). In this work, we have developed a set of regular expression patterns describing subfamily-specific spatial constraints of the key catalytic residues. Using these patterns, 1,016 Prx's available in public databases were classified into the five subfamilies. Our method performed well for most of the types except for Atypical 2 Cys R type.

Classification and Distribution of Chironomidae (Diptera) using DNA Barcoding at Urban Streams in Gwangju, South Korea

  • Yoon, Sang-Hoon;Park, Jeong-Wook;Park, Ji-Young;Seo, Jin-Jong;Jeong, Suk-Kyung;Chung, Jae-Keun;Bae, Seok-Jin
    • 생태와환경
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    • 제52권4호
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    • pp.385-393
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    • 2019
  • Chironomid communities are indicators of water pollution because of their ability to thrive under freshwater conditions. However, it is difficult to distinguish between chironomid larvae based on morphology. DNA barcoding, based on nucleotide sequences of marker genes, can be used to identify chironomid larvae. Samples of chironomid larvae were collected from Gwangju Stream and Pungyeongjeong Stream, tributaries of the Yeongsan River in South Korea. We identified 3 subfamilies, 13 genera, 16 species, and 1 cryptic species. There were 7 genera and 10 species from the subfamily Chironominae, 5 genera and 5 species from subfamily Orthocladiinae, 1 genus and 1 species from subfamily Tanipodinae, and the cryptic chironomid species of the family Chironomidae. There were 21 individuals from, 7 species and 1 cryptic species from the Gwangju Stream and 24 individuals, belonging to 10 species from the Pungyeongjeong Stream. The only species detected in both streams was Cricotopus bicinctus. The relationship between water quality and the species detected was difficult to explain, but the number of species showed a tendency to increase at sites where water quality was poor. Additional investigations and studies are needed to understand the relationship between water quality and the chironomid species occurring in these two streams.

한국산 밤바구미아과의 분류 (Classification of the Subfamily Curculioninae from Korea (Coleoptera : Curculionidae))

  • 권용정;이승모
    • 한국응용곤충학회지
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    • 제29권2호
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    • pp.83-103
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    • 1990
  • 한국산 밤바구미류는 지금까지 8종이 보고되었으나, 그 계통분류의 일환으로 재검토한 결과 총 5屬 28種이었고, 그중에는 2新屬, 1新亞屬, 13新種 및 7한국미기록종이 새로 추가된다. 각 분류군의 검색표, 분포상황 및 기주식물을 정리하였다.

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동물바이러스의 새로운 분류 (New classification of animal viruses by the International Committee on Taxonomy of Viruses)

  • 장형관;송희종
    • 한국동물위생학회지
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    • 제28권1호
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    • pp.49-69
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    • 2005
  • More than 30 years have elapsed since the first report of the International Committee on Taxonomy of Viruses (ICTV) was published in 1971. Since that publication, the ICTV recognizes about 1,550 virus species, but some 30,000 virus strains and isolates are being tracked by virologists in different fields of biology. The ICTV is the 'international court' of experts that rules on names and relationships of all virus, but only to the level of species. Virus taxonomy is changing rapidly, with changes ranging from the trivial(use of italics for species names) to profound reorganization driven by the explosion of sequence information. The universal system of viral taxonomy now accepts Linnean-like classification at the levels of order, family, subfamily, genus, and species. The suffix '-virales' identifies an order, Families are identified by the suffix '-viridae' subfamilies are identified by the suffix '-virinae', and genera are identified by the suffix '-virus'. The importance of distinguishing subspecies, strains, and isolates in vaccine development, diagnostics, etc. is recognized, but these lower levels are not formally classified by ICTV. This paper mainly introduces taxonomy and classification of animal viruses on the basis of the seventh report of the ICTV edited by Van Regenmortal et al. in 2000.

Palynological contributions to the taxonomy of family Oleaceae, with special empahsis on genus Forsythia (tribe Forsytheae)

  • Lee, Sangtae
    • 식물분류학회지
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    • 제41권3호
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    • pp.175-181
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    • 2011
  • Traditionally, the Oleaceae has been divided into subfamilies Oleoideae and Jasminoideae. In the present paper, the taxonomical results so far made on the family were reviewed on the basis of palynology. The subfamilial classification is not well supported palynoligically, because both Myxopyrum of Jasminoideae and Comoranthus of Oleoideae having foveolate surface are well distinguished from the rest of the family having reticulate surface. The recent subfamily Nyctanthoideae (Takhtajan, 1977) including the monotypic Nyctanthus, was suggested to be included within the Jasminoideae although its closest relative on the palynological basis is different from that on the molecular basis. Tribal classification systems of the Jasminoideae are not well supported palynologically on the basis of surface character: presence or absence of bands on the mural ridge surface of the reticulum. On the basis of palynology, tribe Forsythiae including Abeliophyllum, Fontanesia, and Forsythia is monophyletic, and Fontanesia is well distinguished from the rest two. Korean species of Forsythia is divided into two: Forsythia koreana group and F. ovata-nakaii-saxatilis group. Recent discovery of F. saxatilis at a locality of F. ovata raised a question if the distinction between the two species on the basis of hairiness would be right. In the recent molecular studies, F. saxatilis var. lanceolata seems to be identified as F. saxatilis. Molecular studies showed that F. saxatilis (seemingly var. lanceolata or var. pilosa) is close to F. koreana. The fact in which the molecular result showed a close relationship between F. saxatilis varieties and F. koreana, is controversial to the result by floral and vegetative morphology. An intensive taxonomic study of these taxa would be needed.

한국산 미기록 기생벌 Aleiodes conina (벌목: 고치벌과)에 대한 보고 (A New Record of Parasitoid Wasp Aleiodes conina (Hymenoptera: Braconidae) from South Korea)

  • 이경현;손주형;김상진;김영모;임종옥;김효중
    • 한국응용곤충학회지
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    • 제61권3호
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    • pp.503-506
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    • 2022
  • 고치벌과의 송충살이고치벌아과에 속하는 Aleiodes conina Quicke and Butcher, 2012를 국내 최초로 보고한다. 본 종에 대한 진단, 분포 및 삽화를 제공한다.

한국산 망둥어 과 어류의 척주와 담기골에 관한 연구 (Study of Vertebral Column and Pterygiophores in Gobiidae (Pisces, Perciformes) from Korea)

  • Lee, yong-Joo
    • Animal Systematics, Evolution and Diversity
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    • 제9권1호
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    • pp.25-34
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    • 1993
  • 1984년 4월부터 1992년 10월가지 국내에서 채집된 망둑어과 어류 4아과 26속 45종의 총 348개체를 대상으로 제1등지느러미 담기골의 배열식, 척추골수, 상미축골수 및 제 1혈관극 전방의 뒷지느러미 담기골수를 조사하여 비교하였다. 제1등지느러미 담기골의 배열식과 상미축골수는 속의 특징을 잘 나타내주었으며, 척추골수와 제1혈관극 전방의 뒷지느러미 담기골수는 종에 따라 고유한 특징을 보여주었다. 이중 이전에 망둑어 과의 아과를 구분하는 특징으로 사용되어진 상미축골수는 망둑어 아과의 분류에서는 적합하지 않았다.

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X 연관 부신백질이영양증의 분류, 진단 및 치료의 최신 지견 (X-linked adrenoleukodystrophy; Recent Advances in Classification, Diagnosis and Management)

  • 정을식;고아라;강훈철
    • 대한소아신경학회지
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    • 제24권3호
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    • pp.71-83
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    • 2016
  • X-linked adrenoleukodystrophy (X-ALD) is caused by mutations in the ATP binding cassette subfamily D member 1 (ABCD1), a gene that encodes peroxisomal membrane located on ABC half-transporter named adrenoleukodystrophy protein (ALDP). X-ALD is characterized by a highly variable clinical spectrum, including progressive cerebral type, adrenomyeloneuropathy, and addison-only phenotype. No genotype/phenotype correlation has been established. Thus, unidentified modifier genes and other co-factors are speculated to modulate the phenotypic variation and disease severity. Recent advanced sequencing methods and reprogramming technologies not only offer an affordable and applicable approach to investigate the pathophysiological mechanisms of adrenoleukodystrophy, but also provide means to develop therapy. A causal therapy of X-ALD is lacking. Lorenzo's oil therapy is recommended for asymptomatic boys, but the longest study found that the oil was not beneficial at all to symptomatic X-ALD patients. Hematopoietic stem cell therapy has a relevant chance of success when performed during this early stage of cerebral type X-ALD. Recently, it has been insisted that lentiviral-mediated gene therapy of hematopoietic stem cells can provide clinical benefits in X-ALD. This review describes current knowledge on the clinical presentation, pathogenesis, diagnosis and management of X- ALD.