한반도 북방계 식물의 용어 정의 및 종 목록

Amarsanaa Gantsetseg,정수영,조원범,한은경,소순구,이정현 한약정보연구회 2020 한약정보연구회지 Vol.8 No.2

Baekdudaegan on the Korean Peninsula is a key ecological axis in Northeast Asia that is linked to the Sihote-Alin of Russia and the Lesser Khingan Range of China. In particular, the Baekdudaegan region occupies an important geographical location where a large number of subarctic plants grow as the southernmost limit line of northern lineage plants. However, the definition of the northern lineage plants is ambiguous, and there is a limit to establishing a conservation strategy that encompasses the Northeast Asian ecological zone. Therefore, in this study, the term “northern lineage plants” of the Korean Peninsula was defined, and a list of plant species according to it was prepared. We propose the term “northern lineage plants” as plants that the southernmost limit of geographic distribution is the Korean Peninsula. The northern lineage plants were found that 616 species of 91 families. The most dominant family was Cyperaceae with 68 species, followed by Asteraceae (Compositae) with 58 species, Ranunculaceae with 41 species, and Rosaceae with 39 species.

엽록체 DNA 변이에 기초한 가는기린초(Sedum aizoon)와 기린초(S. kamtschaticum)의 유전적 관계

AMARSANAA GANTSETSEG,조원범,한은경,이정현 한약정보연구회 2020 한약정보연구회지 Vol.8 No.1

Sedum aizoon and S. kamtschaticum have been widely used as useful herbal medical plants, but the relatives have a taxonomic controversy due to their ambiguous morphological boundaries. Thus, at the genetic level, to clarify the taxonomic relationship between the two, we identified the chloroplast DNA haplotypes of 128 individuals from 6 populations in the Korean peninsula. Analyses were based on sequence data from the trnLUAA-trnFGAA, psaI-accD, petN-psbM, and rpl32-trnLUAG regions. The S. aizoon has a total of two haplotypes, while the S. kamtschaticum has a total of five haplotypes. At the species level, S. kamtschaticum harbored relatively higher genetic variation. TCS analysis largely revealed two lineages formed according to each species. However, S. kamtschaticum's haplotype K1 of the Mt. Jiri population was included in S. aizoon lineage. The haplotype K1 was discussed in two aspects: morphological and genetic criteria in the statistical parsimony network. In this regard, we conclude that S. aizoon specialized for the local environment (Mt. Jiri) was convergent with the morphology of the S. kamtschaticum by chance.

Characteristics of the complete plastid genome sequence of Lindera angustifolia (Lauraceae) in the geographically separated northern edge

AMARSANAA GANTSETSEG,김정현,현창우,한은경,이정현 한국식물분류학회 2022 식물 분류학회지 Vol.52 No.2

Lindera angustifolia is mainly distributed in the temperate climate zone of China but shows an extraordinary distribution, disjunctively isolated on the western coastal islands of Korea. We therefore present the complete chloroplast genome of Korean L. angustifolia. The complete plastome was 152,836 bp in length, with an overall GC content of 39.2%. A large single copy (93,726 bp) and a small single copy (18,946 bp) of the genome were separated by a pair of inverted repeats (20,082 bp). The genome consists of 125 genes, including 81 protein-coding, eight ribosomal RNA, and 36 transfer RNA genes. While five RNA editing genes (psbL, rpl2, ndhB×2, and ndhD) were identified in L. angustifolia from China, the "ndhD" gene was not recognized as an RNA editing site in the corresponding Korean individual. A phylogenetic analysis revealed that Korean L. angustifolia is most closely related to the Chinese L. angustifolia with strong bootstrap support, forming a sister group of L. glauca.

A 200-year-long miscognition: Castanopsis cuspidata does not occur on the Korean Peninsula

장영종,이은도,AMARSANAA GANTSETSEG,손동찬,정규영,한은경,이정현 한국식물분류학회 2023 식물 분류학회지 Vol.53 No.4

There has been no doubt over the past approximately 200 years that Castan- opsis cuspidata is distributed on the Korean Peninsula. Nevertheless, our empirical obser- vations prompt us to question its presence in this region. To clarify whether C. cuspidata occurs on the Korean Peninsula, we investigated specimens from herbaria, literature related to its distribution, and an officially recorded C. cuspidata forest of a Natural Monument on Yokjido Island. Based on our research findings, we provide a taxonomic key highlighting morphological differences especially the rachis of the infructescence and the tubercles of cupule between C. cuspidata and C. sieboldii. We concluded that it is more likely that C. cuspidata is not distributed on the Korean Peninsula. Furthermore, all the trees in the offi- cially recorded natural monument C. cuspidata forest on Yokjido Island were found to be C. sieboldii. The miscognition may have gradually solidified over time due to a series of mis- identifications of C. sieboldii. It began Wenzig's documentation (1886) of Wilford's speci- men collection (1859) for Quercus cuspidata (= C. cuspidata) on Geomun Island in a historical context when the distinction between C. cuspidata and C. sieboldii had not yet been established. Additionally, our study suggests that the misidentification of organisms can have an impact beyond medicine and pharmacology, extending even into human culture.

A phylogenetic analysis of the Korean endemic species Paraphlomis koreana (Lamiaceae) inferred from nuclear and plastid DNA sequences

한은경,김중현,김진석,현창우,손동찬,정규영,AMARSANAA GANTSETSEG,이정현,최인수 한국식물분류학회 2023 식물 분류학회지 Vol.53 No.2

Paraphlomis koreana (Lamiaceae) was newly named and added to Korean flora in 2014. Paraphlomis belongs to the tribe Paraphlomideae, along with Ajugoides and Matsumurella. However, a recent study has suggested that P. koreana is morphologically similar to Matsumurella chinensis, making them difficult to distinguish from each other. Therefore, we aimed to examine the phylogenetic placement of P. koreana within the tribe and compare its genetic relationship with M. chinensis. We sequenced an additional complete plastid genome for an individual of P. koreana and generated sequences of nuclear ribosomal (nr) DNA regions of internal and external transcribed spacers (ITS and ETS) for two individuals of P. koreana. Maximum likelihood analyses based on two nrDNA regions (ITS and ETS) and four plastid DNA markers (rpl16 intron, rpl32-trnL, rps16 intron, and trnL-F) covering 13 Paraphlomis species and M. chinensis were conducted. Phylogenetic analyses concordantly supported that P. koreana forms a monophyletic group with M. chinensis. Moreover, our study revealed that P. koreana includes nrDNA sequences of M. chinensis as minor intraindividual variants, suggesting that the genetic divergence between the two taxa is incomplete and may represent intraspecific variation rather than distinct species. In conclusion, our findings suggest that the independent species status of P. koreana within Paraphlomis should be reconsidered.

Evergreen forests on the Korean Peninsula faced a new threat: Schizomyia castanopsisae (Jat-bam-na-mu-hok-pa-ri) inducing galls on reproductive organs of Castanopsis sieboldii in the Yokjido Island Natural Monument Forest

이은도,최정환,어승수,김일권,장영종,소순구,손동찬,AMARSANAA GANTSETSEG,정효진,한은경,이정현 한국식물분류학회 2023 식물 분류학회지 Vol.53 No.4

Unnoticed and silently, a certain midge has emerged that could pose a threat to the evergreen forests on the Korean Peninsula and the associated island ecosystems. We report the discovery of an unrecorded species on the Korean Peninsula, identified as Schi- zomyia castanopsisae Elsayed & Tokuda, 2018 (Diptera: Cecidomyiidae). This previously unrecorded gall midge species induces galls on a reproductive organ of Castanopsis siebol- dii, specifically the inflorescences, and was found in the natural monument forest on Yok- jido Island. A total of 40 larvae were collected from 8 inflorescence galls, each obtained from individual hosts within the forest. Morphological examinations and mitochondrial DNA cytochrome oxidase subunit I (COI) region sequencing were conducted for each spec- imen, confirming the identification of the gall inducer as S. castanopsisae. The COI sequences from the 40 specimens collected on Yokjido Island were identical, showing a 99.8% match with individuals from Kyushu, Japan. Additionally, a maximum likelihood tree analysis revealed a sister relationship between Yokjido Island and Kyushu individuals. Con- sidering the tropical nature of gall midge species, it suggests recent northward migration from Kyushu to Yokjido Island. This species not only significantly reduces acorn production but also has the potential to negatively impact organisms associated with acorns. Drawing from cases in Japan, this species has the potential to rapidly dominate evergreen broad- leaved forests on numerous islands in the Korean Peninsula. Therefore, urgent additional research on aspects such as natural enemies of this species, its dispersal mechanisms, and other relevant factors is necessary. We also investigated the distribution of trees with inflo- rescences gall-induced by S. castanopsisae in the Yokjido Island Natural Monument Forest. The occurrence frequency of these galls is estimated to be approximately 10 percent.