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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Plant Taxonomy
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Journal DOI :
The Plant Taxonomic Society of Korea
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Volume & Issues
Volume 37, Issue 4 - Dec 2007
Volume 37, Issue 3 - Sep 2007
Volume 37, Issue 2 - Jun 2007
Volume 37, Issue 1 - Mar 2007
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The Role of a Floral Identity Gene LFY in Plant Morphological Evolution
Park, Young-Doo ; Yoon, Ho-Sung ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 323~333
The degree to which parallel evolution utilizes the same genetic mechanisms indicates the degree to which developmental processes constrain or channel phenotypic evolution. A transgenetic strategy was used to elucidate the role of one floral meristem identity gene, LEAFY (LFY), in the evolution of rosette flowering, a plant architecture that has evolved in parallel in several lineages of the mustard family, Brassicaceae. The LFY genes from three rosette flowering species were cloned and introduced into a species with the ancestral architecture, and results indicated that changes at the LFY locus contributed to the evolution of rosette flowering in two of the three lineages, but that in each lineage a different set of genetic partners was involved. Also, LFY was shown to play a role in the evolution of flower size. Transgenetic strategy may be useful in the study of plant morphological evolution and parallelism.
Species Diversification of Genus Cirsium (Asteraceae) in Japan
Kadota, Yuichi ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 335~349
Genus Cirsium (Asteraceae) from Japan is revised based on both field and herbarium examinations. As a result it is clarified that the Cirsium flora of Japan is consisted of more than 120 species and that several groups are considerably diversified in the Japanese Archipelagoes. Here two instances will be shown for the diversification. The northern maritime group (sect. Onotrophe subsect. Littoralicola), a recently recognized group, is differentiated in the maritime regions of Honshu and Hokkaido. The Cirsium kagamontanum group (sect. Onotrophe subsect. Reflexae), the most diversified group in Japan, is differentiated mainly in the cool temperate zone of Honshu and Shikoku.
Evo-Devo of Leaf Shape Control with a Special Emphasis on Unifacial Leaves in Monocots
Yamaguchi, Takahiro ; Tsukaya, Hirokazu ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 351~361
In angiosperms, leaves typically develop as three-dimensional structure with dorsoventral, longitudinal, and lateral axes. We have shown that the control of two axes of leaves, longitudinal and lateral axis, can be genetically separable, and four classes of genes are responsible for the polar cell expansion and polar cell proliferation in Arabidopsis. In monocots, unifacial leaf, in which leaf surface consists only of abaxial identity, has been evolved in a number of divergent species. The unifacial leaves provide very unique opportunities for the developmental studies of the leaf axes formation in monocots, because their leaf polarities are highly disorganized. In addition, the mechanism of the parallel evolution of such drastic changes in leaf polarities is of interest from an evolutionary viewpoint. In this article, we describe our recent approaches to reveal the mechanism of unifacial leaf development and evolution, including recent advances in the leaf polarity specification in angiosperms.
Main Regularities of Eco-geographical Differentiation in Endemic Element of the Russian Far East Flora
Kozhevnikov, Andrey Evhenjevicz ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 363~386
Endemic element of the Russian Far East (RFE) flora includes 497 species of 150 genera and 46 families. The level of endemism in structure of regional natural flora reaches 11.1% as a whole, and in structure of its native fraction - 13.1%. As a result of chorologic and ecocenotic analysis of RFE flora endemic element it is revealed that it consists of 8 main geographical groups and 7 main floristic complexes. The largest number of endemic species is concentrated in Arctic - Alpine & Montane (140, 28.2%), Forest (107, 21.5%) and Maritime (88, 17.7%) floristic complexes as well as in Russian Far East - West-Pacific (136, 27.4%), Japan Sea (88, 17.7%) and North-East-Asian - Beringian (69, 13.9%) geographical groups. It's possible to distinguish three main areas with similar eco-geographical differentiation of endemics on RFE as follows: (1) North-East Asia sector of RFE which North-East-Asian - Beringian and Maritime Okhotia - Beringian geographical groups approximately correspond to, (2) Continental part of East Asia sector of RFE (West - Okhotian, Amur - Okhotian, Amur - Ussirian, Okhotsk Sea and Japan Sea groups) and (3) Oceanic part of East Asia sector (Russian Far East - West Pacific group). Taxonomical variety of RFE endemics on these territories makes up accordingly (1) - 99 species (19.9%), (2) - 259 (52.8%) and (3) - 136 (27.4%).
Saussurea grandicapitula W. Lee et H. T. Im (Compositae), a New Species from the Taebaek Mountains, Korea
Lee, Woo-Tchul ; Im, Hyoung-Tak ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 387~393
Saussurea grandicapitulata, a new species of Saussurea, was repodrted in the Taebaek Mountains. It has peculiar morphological characters, easily distinguisable from other Saussurea in Korea and Japan; robust plant size, pale green leaf beneath, purplish brown-cobwebby hairs on petioles of radical and lower cauline leaves, few heads with not so long pedicel, big globose involucres with brown-cobwebby hairs, and often recurved long phyllaries. S. grandicapitula is an endemic species to Korea which was differentiated in consequence of adaptation to heavy snowy environment of the Taebaek Mountains.
Habenaria iyoensis (Orchidaceae): First Report for Korea
Lee, Chang-Shook ; Lee, Nam-Sook ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 395~400
Habenaria iyoensis Ohwi (Orchidaceae), previously known only from southern Japan and Taiwan, was found in the lowland of Jeju-do. This species is distinguished from the related taxa of Korean Habenaria by 3-nerved sepals, short-cylindrical spurs, and rosette leaves. The local name Ae-gi-bang-ul-nan-cho implies a smaller plant than H. flagellifera. The morphological characters and illustrations of the species are provided with photographs at the habitat.
A Numerical Taxonomy of Korean Ilex (Aquifoliaceae)
Hwang, Seung-Hyun ; Park, Seon-Joo ; Kim, Joo-Hwan ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 401~418
We performed the numerical analyses of thirty two morphological characters for twenty four populations of eight Korean Ilex L. taxa. Principal component analyses showed that the first three principal components were related to the total covariance by 67.0%, and the proportions of PCl, PC2 and PC3 were 31.5%, 21.1%, and 14.4%, respectively. And the closely related characteristics to the PCl, PC2 and PC3 were some reproductive characters such as the morphology of sepal, petal, anther, pistil and fruits and vegetative characters such as the morphology of petiol and leaf margin, the trichomes on the twigs, the leaf duration. From the two dimensional plottings by the eigenvalues of PCl, PC2 and PC3, six grouped were clustered as Ilex integra, I cornuta, I x wandoensis, I. rotunda, I. macropoda and I. macropoda for. pseudomacropoda, I. crenata and I. crenata var. microphilla. The numerical analysis was useful for the taxonomy of Korean Ilex because it clearly seperated the populations of taxa included in this study. The identification key was provided with the diagnostic characters.
Analysis of ITS DNA Sequences of Korean Oxalis Species (Oxalidaceae)
Koo, Ja-Choon ; Chae, Mi-Suk ; Lee, Jeoung-Ki ; Whang, Sung-Soo ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 419~430
This study was conducted to know the taxonomic features of nuclear ribosomal ITS DNA sequences, ITS1, ITS3 and 5.8S regions, as to nine individuals belonging to four Oxalis species in Korea and an induced species. Sequences of the same regions of sixteen taxa deposited in GenBank were also aligned with those of Korean species as outgroups. The length of ITS sequences aligned in this study is 679 by in total. Evidences, from not only the sequence similarities and divergences but also the phylogenetic and statistical treatments with ITS sequences aligned, were useful for the taxonomy of the genus. The similarity of sequences, among both cauline and acauline taxa, is high as 89% and 95% respectively, but between cauline and acauline taxa, relatively low in the range of 64~69%. The sequence divergences, among both cauline and acauline taxa, is also high as much as 0.36~0.42, but between both cauline and both acauline taxa, low as 0.04~0.06. Two groups between cauline and acauline taxa are paraphyletic, and each group makes a single Glade with a high bootstrap value. The analysis of variance, using ITS sequence aligned, revealed that taxa are significantly different in the level of 0.5%, and O0 corymbosa, an induced speices, is also separated from the Korean taxa in the Duncan analysis.
A Taxonomic Review of Phytolacca insularis (Phytolaccaceae)
Chae, Seung-Hee ; So, Soon-Ku ; Han, Kyeong-Suk ; Park, Sang-Hong ; Lee, Joong-Ku ; Kim, Mu-Yeol ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 431~446
The purpose of this study is to review the taxonomical position of Phytolacca insularis Nakai based on morphological characters and ITS sequences. Phytolacca insularis was similar to P. acinosa in the stem shape, inflorescence, apocarpous, eight pistils, eight stamens, pink anther, and eight fruits. But the unique difference between P. insularis and P. acinosa was leaf size and pistil color. Phytolaccri insularis and P. acinosa have a similar sculpturing patterns as an foveolate and microscabrate in pollen, but they differed from P. americana in having a bigger foveolae size in sculpture pattern. Phytolacca insularis and P. acinosa were similar in the seed size but different from P. americana by having a small size of seed. The seed surface of P. insularis and P. acinosa was similar with a irregularly undulate shape, but its feature of P. americana differed in having the reticulate shape. Phytolacc a insularis had identical ITS sequences with P. acinosa. Phytolacca insularis and P. acinosa have a close relationship in the morphological characters and ITS sequences. The examinations of morphology and ITS sequences suggest that P. insularis be a form of P. acinosa although it has been formerly treated as a distinct species.
Palynological and Revisional Studies of Thalictrum L. in Korea
Jeon, Kyoung-Suk ; Heo, Kyeong-In ; Lee, Sang-Tae ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 447~476
The pollen and revisional study aimed for an elucidation of taxonomic delimitation and relationship of Thalictrum taxa in Korea, especially among the morphologically confused taxa. Pollen grains of 63 populations of 17 taxa were investigated by light and scanning electron microscopy. Although pollen morphology was not useful for the species classification, it revealed a tendency in which Sects. Physocarpum, Erythrandra and Tripterium having broad filaments and round-tipped anthers possess closer distance between adjacent pores, less echinus number per unit area, smaller pollen, and higher echinus, on the contrary to Sects. Omalophysa, Camptonotum and Thalictrum having filiform filaments and acute-acuminate- or more or less round-tipped anthers. The palynological result did not support several section system by Tamura (1992) but one section system by Lecoyer (1885). If a infrasectional system is needed, it was suggested that the system dividing the section into two (Clauiformes and Filiformes sensu Lecoyer) would be natural on the basis of stamen and pollen characteristics. Revisional study found out that 17 taxa(16 species) of Thalictrum are distributed in Korean including T. filimentosum which presence in Korea was not confirmed.
Systematic Study on the Aconitum alboviolaceum Complex (Ranunculaceae) in Korea
Lee, Soo-Rang ; Park, Chong-Wook ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 477~502
The Aconitum alboviolaceum Kom. complex includes four controversial species described from Korea; A. albouiolaceum, A. pseudolaeue, A. longecassidatum, and A. quelpaertense. The main objective of this study was to determine the taxonomic identities and systematic relationships among the species in the A. albouiolaceum complex based on morphology, numerical analyses and DNA sequence analysis. In the present study, variations in the principal morphological characters and chloroplast DNA noncoding region sequences (psbA-trnH IGS, trnL intron, and trnL-trnF IGS) were examined for 95 individuals from 20 populations. Also, neighbor-joining analysis was adopted to infer their relationships. Morphological variation appeared to be considerably high but not to be related to geographic distribution. These morphological results suggest that reevaluation of key morphological characters are needed for the proper taxonomic treatment of the complex. The length of psbA-trnH IGS region ranged from 241 to 250 bp, that of the trnL intron from 526 to 532 bp, and that of the trnL-trnF IGS region from 466 to 472 by in all taxa. Nine haplotypes were recognized from the analysis. Seven populations shared more than two haplotypes, while other thirteen populations shared only one haplotype. In the phylogenetic analysis, the nine haplotypes formed four groups, separated A. sibiricum, one of the sister groups of the complex. There also was no distinct grouping pattern supporting the species and populations observed. These results suggest that introgression or speciation might have been involved in the formation of taxa of A alboviolaceum complex.
Type Specimens and Lectotypification of Nakaian Taxa from Ulleung Island, Korea
Shin, Hyun-Chur ; Kim, Young-Dong ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 503~527
Type specimens (deposited at TI) for 55 Nakaian taxa described from Ulleung Island were examined. Four taxa of those were confirmed as simple name combinations. Excluding 15 taxa which have already been lectotypified, lectotypes for 25 taxa including Arabis takesimense Nakai, Fagus multineruis Nakai, and Salix ishidoyana Nakai were designated in here. Validity of publication for the names of five taxa was not confirmed here. Type specimens for the remaining six taxa need further examination.
Taxonomical Review for Tilingia tsusimensis (Apiaceae)
Kim, Mu-Yeol ; So, Soon-Ku ; Seo, Eun-Kyoung ; Park, Hye-Rim ; Han, Kyeong-Suk ; Heo, Kweon ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 529~543
It was revaluated about taxonomical position of the Tilingia tsusimensis (Yabe) Kitagawa (Apiaceae) collected from Mt. Gaya, Mt. Geumo, and Mt. Songni in Korea. Its diagnostic features include slightly dorsally compressed mericarps, acute-prominent ribs, ternate leaves, and dimorphic white petals. It is morphologically similar to Cymopterus and Pimpinella in having ternate leaves. It is distinguished from Cymopterus having asymmerty mericarps, 3-4 mericarp ribs, and winged dorsal ribs. Pimpinella differs in having slightly laterally compressed mericarps without ribs and conspicuous calyx teeth. Also, it looks like Angelica with obsolete calyx teeth and multilayer pericarps, but is distinguished by having its broadly winged lateral ribs and strongly dorsally compressed mericarps. Tilingia tsusimensis formed a monophyletic Glade or sister group relationship with a genus Angelica based on ITS sequences. Based on the above observations, we conclude that this plant is here referred to T tsusimensis (Yabe) Kitagawa.
The Analysis of Vascular Plant Species Composition in Dok-do Island
Lee, Don-Hwa ; Cho, Seong-Ho ; Pak, Jae-Hong ;
Korean Journal of Plant Taxonomy, volume 37, issue 4, 2007, Pages 545~563
The investigated vascular plants of Dok-do island were confirmed that consisted of 46 species, 1 subspecies, 1 varieties in total of 48 taxa growing spontaneously. 1 taxa of Pteridophyta, 36 taxa of Dicotyledon and 11 taxa of Monocotyledon identified. In 48 identified taxa in this study, total 13 taxa included Orobanche coerulescens Stephan, Fallopia sachalinensis (F. Schmidt) Rouse Decr., Lonicera insularis Nakai identified according to the Korean plant taxa for environmental assessment. Planting species were about 10 taxa included Pinus thunbergii Parl., Hibiscus syriacus L. and etc. Four species confirmed in this study such as between Chenopodium virgatum Thunb. and Chenopodium album L., Echinochloa crusgalli (L.) P.Beauv. and Echinochloa crusgalli var. oryzicola (Vasinger) Ohwi. were doubt on identification in taxonomic entity due to morphological characteristics. The dispersion type of Do-kdo plants were anemochore 31 taxa, zoodchore 8 taxa, hydrochore 2 taxa and the others by artificial means.