• Title/Summary/Keyword: key to the Korean species

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Three New Species of the Genus Kleidotoma (Insecta: Hymenoptera: Figitidae: Eucoilinae) from Korea

  • Choi, Won-Young;Lee, Jong-Wook;Suh, Kyong-In
    • Animal Systematics, Evolution and Diversity
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    • v.25 no.3
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    • pp.295-300
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    • 2009
  • We describe three new species of the Genus Kleidotoma (Figitidae: Eucoilinae) from Korea. They are K. convexitas n. sp., K. debilifovea n. sp. and K. longirudis n. sp. A key to all Korean Kleidotoma species including three new species herein are given. Descriptions and illustrations of diagnostic characters of three new species are also provided.

Genomic Analysis of the Xanthoria elegans and Polyketide Synthase Gene Mining Based on the Whole Genome

  • Xiaolong Yuan;Yunqing Li;Ting Luo;Wei Bi;Jiaojun Yu;Yi Wang
    • Mycobiology
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    • v.51 no.1
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    • pp.36-48
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    • 2023
  • Xanthoria elegans is a lichen symbiosis, that inhabits extreme environments and can absorb UV-B. We reported the de novo sequencing and assembly of X. elegans genome. The whole genome was approximately 44.63 Mb, with a GC content of 40.69%. Genome assembly generated 207 scaffolds with an N50 length of 563,100 bp, N90 length of 122,672 bp. The genome comprised 9,581 genes, some encoded enzymes involved in the secondary metabolism such as terpene, polyketides. To further understand the UV-B absorbing and adaptability to extreme environments mechanisms of X. elegans, we searched the secondary metabolites genes and gene-cluster from the genome using genome-mining and bioinformatics analysis. The results revealed that 7 NR-PKSs, 12 HR-PKSs and 2 hybrid PKS-PKSs from X. elegans were isolated, they belong to Type I PKS (T1PKS) according to the domain architecture; phylogenetic analysis and BGCs comparison linked the putative products to two NR-PKSs and three HR-PKSs, the putative products of two NR-PKSs were emodin xanthrone (most likely parietin) and mycophelonic acid, the putative products of three HR-PKSs were soppilines, (+)-asperlin and macrolactone brefeldin A, respectively. 5 PKSs from X. elegans build a correlation between the SMs carbon skeleton and PKS genes based on the domain architecture, phylogenetic and BGC comparison. Although the function of 16 PKSs remains unclear, the findings emphasize that the genes from X. elegans represent an unexploited source of novel polyketide and utilization of lichen gene resources.

Cytospora elaeagnicola sp. nov. Associated with Narrow-leaved Oleaster Canker Disease in China

  • Zhang, Linxuan;Alvarez, Lourdes V.;Bonthond, Guido;Tian, Chengming;Fan, Xinlei
    • Mycobiology
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    • v.47 no.3
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    • pp.319-328
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    • 2019
  • Cytospora is a genus including important phytopathogens causing severe dieback and canker diseases distributed worldwide with a wide host range. However, identification of Cytospora species is difficult since the currently available DNA sequence data are insufficient. Aside the limited availability of ex-type sequence data, most of the genetic work is only based on the ITS region DNA marker which lacks the resolution to delineate to the species level in Cytospora. In this study, three fresh strains were isolated from the symptomatic branches of Elaeagnus angustifolia in Xinjiang Uygur Autonomous Region, China. Morphological observation and multi-locus phylogenetic analyses (ITS, LSU, ACT and RPB2) support these specimens are best accommodated as a distinct novel species of Cytospora. Cytospora elaeagnicola sp. nov. is introduced, having discoid, nearly flat, pycnidial conidiomata with hyaline, allantoid conidia, and differs from its relatives genetically and by host association.

A newly naturalized species in Korea, Pennisetum flaccidum Griseb. (Poaceae)

  • Kim, Chang-Seok;Lee, Jeongran;Lee, In-Yong;Han, Young-Woo
    • Journal of Species Research
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    • v.2 no.2
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    • pp.223-226
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    • 2013
  • Pennisetum flaccidum Griseb. (Poaceae) is native to Central Asia. While monitoring Poaceae weeds nationwide in Korea, we found its new naturalized distribution in Gunsan, Jeonrabuk-do. The species is distinguished from P. alopecuroides var. alopecuroides by subsessile involucres and plumose bristles. We provide the first documented record of P. flaccidum Griseb. for Korea with the description and illustration. We also provide a taxonomic key to the species of Pennisetum in Korea.

Two New Species in the Family Cunninghamellaceae from China

  • Zhao, Heng;Zhu, Jing;Zong, Tong-Kai;Liu, Xiao-Ling;Ren, Li-Ying;Lin, Qing;Qiao, Min;Nie, Yong;Zhang, Zhi-Dong;Liu, Xiao-Yong
    • Mycobiology
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    • v.49 no.2
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    • pp.142-150
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    • 2021
  • The species within the family Cunninghamellaceae are widely distributed and produce important metabolites. Morphological studies along with a molecular phylogeny based on the internal transcribed spacer (ITS) and large subunit (LSU) of ribosomal DNA revealed two new species in this family from soils in China, that is, Absidia ovalispora sp. nov. and Cunninghamella globospora sp. nov. The former is phylogenetically closely related to Absidia koreana, but morphologically differs in sporangiospores, sporangia, sporangiophores, columellae, collars, and rhizoids. The latter is phylogenetically closely related to Cunninghamella intermedia, but morphologically differs in sporangiola and colonies. They were described and illustrated.

Korean Species of the Subtribe Stigmina (Hymenoptera: Crabronidae: Pemphredoninae)

  • Kim, Jeong-Kyu;Yang, Hyeon-Woo
    • Animal cells and systems
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    • v.13 no.4
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    • pp.465-469
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    • 2009
  • Three Korean species of the subtribe Stigmina are treated: Carinostigmus filippovi Gussakovskij, Tzustigmus rhinocerous Budrys, and Stigmus japonicus Tsuneki. The last two genera and species are new to Korea. A key to Korean genera of the subtribe Stigmina and diagnostic features of three species with digital images are provided.

First Record of the Genus Stirocorsia (Orussidae: Hymenoptera) from Korea

  • Choi, Won-Young;Suh, Kyong-In
    • Animal Systematics, Evolution and Diversity
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    • v.27 no.3
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    • pp.268-270
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    • 2011
  • The family Orussidae is a unique parasitoid group belonging to the suborder Symphyta. Members of Orussidae are rare and only a species, Orussus coreanus Takeuchi have been previously recorded from Korea. In this study, we report another species, Stirocorsia tosensis (Tosawa and Sugihara, 1934), for the first time from Korea. The adult characteristics of the species with illustrations and a species key to the Korean Orussidae are provided.

New Records of Five Species of Triclistus (Hymenoptera, Ichneumonidae, Metopiinae) from South Korea

  • Jin-Kyung Choi;Jong-Wook Lee
    • Animal Systematics, Evolution and Diversity
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    • v.39 no.3
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    • pp.77-85
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    • 2023
  • Five species of South Korean species of the genus Triclistus Förster, 1869 are newly discovered; Triclistus crassus Townes & Townes, 1959, T. mimerastriae Kusigemati, 1971, T. nigrifemoralis Kusigemati, 1971, T. planus Momoi & Kusigemati, 1970, and T. uchidai Kusigemati, 1971. We report those five species of Triclistus herein. Diagnoses, photographs of newly recorded species of this genus, and key to South Korean Triclistus are provided.

New Records of Aphelinids, Encarsia Förster (Hymenoptera: Aphelinidae), in Korea (우리나라 Encarsia Förster에 대한 보고(벌목: 면충좀벌과))

  • Suh, Soo-Jung;Evans, Gregory A.
    • Korean journal of applied entomology
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    • v.54 no.3
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    • pp.281-284
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    • 2015
  • Two species of Encarsia, Encarsia explorata (Silvestri) from Aulacaspis rosarum Borchsenius, A. yabunikkei Kuwana and Lepidosaphes pinnaeformis ($Bouch\acute{e}$), and Encarsia lutea (Masi) from Bemisia tabaci (Gennadius) are newly documented in the Korean fauna of aphelinids (Hymenoptera: Aphelinidae). Brief diagnostic criteria, photographs, and information on the distribution and hosts of these species are provided. Also a key to species of Encarsia from Korea is given for correct species identification.