• Title/Summary/Keyword: genus diversity

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A Taxonomic Review of the Genus Myzia (Coleoptera: Coccinellidae: Coccinellinae) from Korea

  • Lee, Mi Jin;Lee, Jong Eun
    • Animal Systematics, Evolution and Diversity
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    • v.31 no.2
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    • pp.114-117
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    • 2015
  • The taxonomic study of the genus Myzia Mulsant, 1846 in Korea is presented. The genus Myzia contains five species worldwide and two species currently recognized in Palaearctic region. Until now, only M. oblongoguttata (Linnaeus, 1758) has been known in Korea, but we found M. gebleri (Crotch, 1874) for the first time in Korea. We redescribed these two Korean species of the genus Myzia with photographs of the habitus and detailed illustrations of their aedeagus and other appendages. A taxonomic key to the species of Korean Myzia beetles are also provided.

First Record of the Soft-Wing Flower Beetle Genus Kuatunia (Coleoptera: Melyridae) in Korea

  • Lee, Seung-Gyu;Lee, Heejo;Ban, Young-Gyu;Kim, Dong Eon
    • Animal Systematics, Evolution and Diversity
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    • v.36 no.3
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    • pp.232-235
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    • 2020
  • The family Melyridae Leach includes more than 300 genera and 6,000 species consisting of four subfamilies (Dasytinae, Malachiinae, Melyrinae, Rhadalinae). Members of the subfamily Malachiinae is distributed all over the world except for New Zealand and prefer warmer, arid or semi-arid regions. Among the malachiine genera, a genus Kuatunia Evers includes 17 species worldwide, mainly distributed in East Asia. In this study, the genus and its described species, Kuatunia oblongula (Kiesenwetter), is newly added to the Korean fauna. A diagnosis, habitus photographs, and illustrations of diagnostic characters are provided, with a key to species of the genus in East Asia.

The First Record of the Genus Leptodromiella (Diptera: Hybotidae) from Korea

  • Kim, Young-Kun;Suh, Sang Jae
    • Animal Systematics, Evolution and Diversity
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    • v.38 no.4
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    • pp.222-225
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    • 2022
  • A rare genus Leptodromiella Tuomikoski, 1936, which belongs to the subfamily Ocydromiinae in the family Hybotidae contains only one recorded speices, L. crassiseta (Tuomikoski, 1932). Until now, there is still no known ecological information about this genus, and its distribution was restricted to only in central and northern Europe, such as Finland, Sweden and Russia. In Korea, only one species, Bicellaria koreana Barták, Plant & Kubík, 2013, was recorded in the family Hybotidae from Mt. Baekdusan so far. Herein, the second genus Leptodromiella is newly recorded along with the nominate species, L. crassiseta (Tuomikoski, 1932) in Korean fauna. Re-description and illustrations of external features and male genitalia of the newly recorded species are provided in this paper.

Korean Species of the Genus Taeniogonalos (Hymenoptera: Trigonalidae: Trigonalinae) with a New Record

  • Hye-Rin Lee;Danbi Yun;Tae-Ho An;Jae-Hyeon Lee;Deokseo Ku;Bong-Kyu Byun
    • Animal Systematics, Evolution and Diversity
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    • v.40 no.1
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    • pp.88-93
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    • 2024
  • In this study, we conduct a review of the genus Taeniogonalos Schulz, 1906, which belongs to the subfamily Trigonalinae (Hymenoptera: Trigonalidae) from Korea. The genus Taeniogonalos Schulz is recognized as a relatively small genus. Taeniogonalos comprises 53 described species worldwide, including nine species identified in the Eastern Palaearctic region. A total of four species have been recognized from Korea. This paper enumerates the known species in Korea, including the new record. We provide the diagnosis and photographs for the newly recorded species. Additionally, we present a key to the Korean species of Taeniogonalos Schulz, 1906.

Genetic Diversity and Molecular Phylogeny of Cyanobacteria from Sri Lanka Based on 16S rRNA Gene

  • Wanigatunge, R.P.;Magana-Arachchi, D.N.;Chandrasekharan, N.V.;Kulasooriya, S.A.
    • Environmental Engineering Research
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    • v.19 no.4
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    • pp.317-329
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    • 2014
  • The diversity of cyanobacteria in Sri Lanka was studied in different water reservoirs, paddy fields, brackish water and tsunami affected areas using light microcopy, 16S rRNA sequences, followed by phylogenetic analysis. Based on light microscopy, 24 genera were identified from environmental samples belonging to the orders Chroococcales, Oscillatoriales, Pleurocapsales and Nostocales. In cultures, 33 genera were identified from all five cyanobacterial orders, including Stigonematales. Based on 16S rRNA gene sequences and their morphology, two isolates were identified up to species level, 72 to genus level, one isolate up to family and 11 up to order level. Twelve isolates couldn't be assigned to any taxonomic level. The results of 16S rRNA gene sequences along with the phylogenetic analysis indicated that some cyanobacterial isolates could be accommodated to genus or order level. The 16S rRNA sequence analysis data in this study confirmed that order Nostocales and order Pleurocapsales cyanobacteria are monophyletic while orders Chroococcales, Oscillatoriales and Stigonematales cyanobacteria are polyphyletic. Polyphasic approach including the combination of light microscopy, cultures and the analysis of 16S rRNA gene sequences provide a promising approach to ascertain the diversity of cyanobacteria in different habitats.

Chromosome numbers of eight taxa of Aconitum L. in Korea and their systematic significance (Ranunculaceae)

  • Chung, Kyong-Sook;Nam, Bomi;Park, Myung Soon;Eom, Jeong Ae;Oh, Byoung-Un;Chung, Gyu Young
    • Korean Journal of Plant Taxonomy
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    • v.41 no.3
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    • pp.215-222
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    • 2011
  • Various aneuploidy and polyploidy have been reported in the genus Aconitum L. (ca. 300 species worldwide, Ranunculaceae), and there is a demonstrated association between major lineage diversification and polyploidy. This study reports chromosome counts of eight Aconitum from Korea, including the first counts for A. japonicum Thunb. subsp. napiforme ($H. L{\acute{e}}v.$ & Vaniot) Kadota (2n = 32) and A. longecassidatum Nakai (2n = 16). The study also includes chromosome numbers for two taxa on the Critically Endangered species list in Korea. Among Korean native species, chromosome numbers in Aconitum subgenus Aconitum range from 2n = 16 to 2n = 64 with diverse levels of polyploidy (2x, 4x, and 8x), whereas Aconitum subg. Lycoctonum exhibits only diploids (2n = 16). Greater chromosome number diversity in subg. Aconitum than subg. Lycoctonum might explain higher species diversity within the former subgenus (more than 250 species worldwide). Investigating chromosome number diversity of Aconitum in a phylogenetic framework will be a critical step to understand species richness of the genus.

Exploration of genetic diversity of Bacillus spp. from industrial shrimp ponds in Vietnam by multi-locus sequence typing

  • Le, Xuan The;Pham, Dung Tien;Pham, Tuan Anh;Tran, Tung Thanh;Khuat, Thanh Huu;Le, Hoa Quang;Vu, Ut Ngoc
    • Fisheries and Aquatic Sciences
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    • v.22 no.8
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    • pp.17.1-17.9
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    • 2019
  • Bacillus is a diverse genus consisting of more than 200 species with extensive genetic diversity. Their beneficial effects in industrial shrimp farming have been well documented. However, little is known about the biodiversity of the Bacillus spp. in this aquaculture system. Taxonomic analysis by 16S rRNA sequencing does not always allow species-level identification of Bacillus spp. In this study, 26 Bacillus isolates from two industrial Litopenaeus vannamei shrimp ponds in Bac Lieu Province, Vietnam, were analyzed for their genetic diversity by multi-locus sequence typing (MLST). A total of 22 sequence types were identified and segregated into four distinct clusters, corresponding to B. subtilis, B. velezensis, B. siamensis, and B. licheniformis. Bacillus subtilis and B. velezensis accounted for more than 73% of the Bacillus isolates. Notably, the MLST scheme exhibited high discriminatory power and might be further simplified to be a convenient method to identify species of the genus Bacillus.

The Genus Acervus from Southwestern China and Northern Thailand

  • Zeng, Ming;Zhao, Qi;Gentekaki, Eleni;Hyde, Kevin D.;Zhao, Yongchang
    • Mycobiology
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    • v.48 no.6
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    • pp.464-475
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    • 2020
  • Acervus (Pyronemataceae, Pezizales) is a saprobic genus in Pezizomycetes, characterized by colored apothecia, subcylindrical to cylindrical asci and guttulate ascospores. We collected four Acervus samples from China and Thailand. Descriptions and illustrations are introduced for all fresh samples. One new record of A. globulosus from Thailand, one new species, A. rufus, two known species, A. epispartius and A. stipitatus from China are reported. Phylogenetic analysis based on five genes, the large subunit rRNA (LSU), the translation elongation factor-1 alpha (tef1-α), the second largest subunit of RNA polymerase II (rpb2), the largest subunit of RNA polymerase II (rpb1), and the small subunit rRNA (SSU), revealed the distinct position of the new species. The new species is set apart by its red apothecia. A key to Acervus species is also given.