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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Plant Taxonomy
Journal Basic Information
Journal DOI :
The Plant Taxonomic Society of Korea
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Volume & Issues
Volume 39, Issue 4 - Dec 2009
Volume 39, Issue 3 - Sep 2009
Volume 39, Issue 2 - Jun 2009
Volume 39, Issue 1 - Mar 2009
Selecting the target year
Genetic Variation and Conservation of the Endangered Species Cotoneaster wilsonii (Rosaceae) from Ulleung Island
Park, Ji-Won ; Lee, Jun-Soo ; So, Soon-Ku ; Kim, Mu-Yeol ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 125~129
The genetic diversity plays a significant role in determining a species' survival and perseverance. Endangered species often lack genetic variation, which makes them vulnerable to numerous dangers of extinction including selection, genetic drifts and human interference. Knowing an endangered species' genetic background greatly enhances conservation efforts since it reveals why, what and how to conserve that species. Cotoneaster wilsonii is an endangered plant species endemic to Ulleung island, but not enough genetic research has been done on this taxon for its effective conservation plans. In this study, three populations of C. wilsonii in Ulleung island underwent allozyme analysis through starch gel electrophoresis. 10 loci were analyzed and F-statistics was calculated. Overall data indicated that C. wilsonii possessed low genetic diversity with intense inbreeding, heterozygote deficiency and low differentiation among populations. These results implied that C. wilsonii was recently introduced to the Ulleung island from ancestor species, and did not have much time to differentiate. Current status of C. wilsonii habitats is very fragile and vulnerable, with increasing tourism constantly threatening the species' survival. It is very likely that C. wilsonii will become extinct in near future unless organized conservation protects its populations and genetic diversity.
Sium ternifolium (Apiaceae), a new species from Korea
Lee, Byoung-Yoon ; Ko, Sung-Chul ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 130~134
A new species of Apiaceae, Sium ternifolium from Mt. Chiak-san National Park, Gangwon-do province, Korea, is described and illustrated. This new species is closely related to S. serra (Fr. & Sav.) Kitag., having such characters as long acuminated apex of leaflets, 3-6 slender rays, but distinguished from the latter by its lower height, the absence of involucral bracts, and tri-foliated leaves.
Phylogeny of the family Ophioglossaceae with special emphasis on genus Mankyua
Sun, Byung-Yun ; Baek, Tae-Gyu ; Kim, Young-Dong ; Kim, Chan-Soo ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 135~142
Phylogeny of the family Ophioglossaceae and a phylogenetic position of Mankyua were estimated through analyses of chloroplast rbcL gene sequences and spore morphology. Sequence analysis of the rbcL gene clearly indicated that there are two major lineages in the family Ophioglossaceae: Botrychioid lineage and Ophioglossoid lineage. The Botrichioid lineage is composed of three distinct clades: Botrychium, Helminthostachys and Mankyua, where Helminthostachys and Mankyua were placed as sister groups to the Botrychium. Within the genus Botrychium, subgenera Septridium and Botrychium were monophyletic, while taxa of subgen. Botrypus branched as sister of the two, successively, thus making a non-monophyletic group. Ophioglossum formed the Ophioglossoied lineage, where the subgen. Ophioglossum is monophyletic, while subgen. Cheiroglossa and Ophoderma formed a sister relationship with subgen. Ophioglossum. In terms of external morphology and spores, Mankyua is most similar to Helminthostachys, however, patristic distance in the cladogram and trophophore characteristics of the two genera are distinct. Therefore, Mankyua is a well defined genus within the family in terms of morphology as well as molecular phylogeny which places it in basal position of the Botrychioid lineage on the gene tree.
Taxonomic reexamination of new species described by
in the serial papers of Decades plantarum novarum. II. New species currently treated as taxonomic synonyms of other species
Shin, Hyun-Chur ; Kim, Young-Dong ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 143~169
To confirm the taxonomic identity of taxa described by
, H. H. A, a French plant taxonomist, in the serial papers of Decades plantarum novarum based on the collections of Fathers Faurie and Taquet from the Korean peninsula, we examined the numerous references that contained taxonomic opinions about
's taxa. Among them, 146 taxa were confirmed as conspecific with other existing taxa. Of them, 79 taxa, including Ajuga devestita, were listed as a synonym of only one species. Sixty-seven taxa, including Bidens robertianifolia, were listed as synonyms of two or more species according to taxonomists. Eight taxa, including Aconitum coreanum, were considered illegitimate names because of later homonym, or other problems. Five taxa, including Rhododendron hallaisanense, were treated either as distinct or conspecific taxa depending on taxonomists.
A cytotaxonomic study of Allium (Alliaceae) sect. Sacculiferum in Korea
Ko, Eun-Mi ; Choi, Hyeok-Jae ; Oh, Byoung-Un ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 170~180
Somatic chromosome counts and karyotype analyses were carried out for eight taxa of Korean Allium sect. Sacculiferum. The basic chromosome number of sect. Sacculiferum was x = 8, and they could be cytologically divided into two groups, that is, a diploid group (2n = 2x = 16) containing A. thunbergii var. thunbergii, A. thunbergii var. deltoides, A. thunbergii var. teretifistulosum, A. deltoidefistulosum, A. longistylum, A. linearifolium and A. taqueti, and a tetraploid group (2n = 4x = 32) with only A. sacculiferum. All observed chromosomes were classified into metacentric, submetacentric and subtelocentric. The metacentric ones appeared in all treated taxa. One or two pairs of submetacentric chromosomes were observed in most taxa except A. sacculiferum, the unique taxon with subtelocentric chromosomes. All taxa had a pair of homologous chromosomes with satellites, and the B-chromosomes found in A. thunbergii var. thunbergii, A. deltoidefistulosum, A. sacculiferum and A. longistylum, were metacentric or telocentric. The karyotypes of A. longistylum and A. linearifolium were firstly investigated in this study. In conclusion, the somatic chromosome numbers and karyotypes for members of the sect. Sacculiferum were valuable characters in identifying taxa, investigating interspecific relationships and delimiting taxa. In addition, A. thunbergii var. teretifolium, an invalid name (homonym), was renamed as A. thunbergii var. teretifistulosum H. J. Choi & B. U. Oh.
A reappraisal of Sambucus pendula Nakai on Ulleung Island and its allies
Lim, Hyo-In ; Chang, Kae-Sun ; Lee, Heung-Soo ; Chang, Chin-Sung ; Kim, Hui ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 181~192
Sambucus pendula Nakai, which is an endemic on Ulleung Island of Korea, is characterized by a large pendulous inflorescence and small fruit. A set of 256 individuals were used to investigate the patterns of intraspecific variation of S. racemosa subsp. kamtchatica, S. racemosa subsp. sieboldiana, and S. williamsii including S. pendula using PCA (principal components analysis). This analysis showed that S. pendula was distinct based on its large inflorescence and long peduncle. Our data showed a morphological distinction between subsp. kamtchatica from northeastern areas and subsp. sieboldiana from Jeju Island, but the two taxa overlap in the southern and eastern parts of Korea in terms of chromosome number, color of style, and allozyme data. Our study agrees that S. pendula on Ulleung Island may be the result of genetic drift that occurred during isolation since the Quarternary period. This has been suggested as a reason for the genetic differences observed between two taxa and would explain the unique variation patterns of S. pendula. However, the morphological differentiation between the S. racemosa complex and S. pendula is not considered sufficient to warrant recognition of specific status. Therefore, we recommend that only one polymorphic species of S. racemosa in Eurasia be recognized and that S. pendula be considered a subspecies of S. racemosa.
Cytogenetic Study of Maackia amurensis Rupr. & Maxim. and M. fauriei (Levl.) Takeda Using Karyotyping Analysis and the FISH Technique
Kim, Soo-Young ; Kim, Chan-Soo ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 193~198
Chromosome analysis using karyotyping and bicolor FISH were carried out for two Maackia species (M. fauriei and M. amurensis) found in Korea. The somatic metaphase chromosome number was 2n = 2x = 18 in both, and the size of these chromosomes ranged from 3.58 to 5.82
. The chromosome complements consisted of two pairs of metacentric (chromosomes 1 and 7), four pairs of submetacentrics (chromosomes 4, 6, 8 and 9) and three pairs of subtelocentrics (chromosomes 2, 3 and 5) in M. fauriei but, chromosomes 4 (subtelocentric) and 7 (submetacentric) of M. amurensis have different morphology. Using bicolor FISH, a pair of 45S rDNA loci were observed for both M. fauriei and M. amurensis, but the number and site of the 5S rDNA signal were different in the two species. M. fauriei has two pairs of 5S signals on chromosomes 7 and 8 but, M. amurensis has four paris on chromosomes 3, 4, 7 and 7. Hence, the 5S rDNA is a useful FISH for Maackia species.
Description of the phytoliths of the genus Oryza, with a key to species
Whang, Sung-Soo ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 199~215
Phytoliths formed on the leaf-blades of the seventeen Oryza species were examined using backscattered electron imaging. The resulting descriptions of the phytoliths became the basis for a new key to the species of the genus. This key includes features useful for specific identification related to the silica bodies originating from epidermal cells upon both the mid-vein and bulliform cell, as well as of phytoliths originating from papillae, prickle hairs, large and small trichomes, and stomatal apparatus. These detailed phytolith descriptions, back-scattered electron images, and keys to both adaxial and abaxial sides of leaves, can now be used in identifying phytoliths from archaeological samples as well as extant species of Oryza.
Chromosome study of Galium elegans and G. asperifolium (Rubiaceae) from Yunnan, China
Jeong, Keum-Seon ; Lee, Sang-Woo ; Pak, Jae-Hong ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 216~219
The somatic chromosome of two taxa, Galium elegans Wall. ex Roxb(Sect. Cymogaliea Pobed) and Galium asperifolium Wall. ex Roxb(Sect. Leptogalium Lang), in Yunnan, China were investigated. The taxa were reported for the first time. The somatic chromosome numbers of G. elegans was 2n = 22(X = 11), diploid, from two regions, Mt. Canghsan and Hutiaoxia Valley. Those of G. asperifolium were found as 2n = 33, 44, 55(X = 11) with triploid, tetraploid, pentaploid. Most of G. elegans in the Yunnan were confirmed as diploid. The somatic chromosome number of G. asperifolium was found polyploidy, and the investigation revealed that triploid and tetraploid are living together as mixed population in the Mt. Canghsan.
C-banded karyotypes of Allium (Alliaceae) sect. Sacculiferum in Korea
Ko, Eun-Mi ; Choi, Hyeok-Jae ; Oh, Byoung-Un ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 220~228
C-banded karyotypes of eight taxa of Korean Allium sect. Sacculiferum were examined by means of Giemsa techniques. Each of the taxa had their own characteristic bands. Most of the bands on the somatic metaphase chromosomes were mainly located on the short arm, intercalary region and medium sized chromosomes. In addition, the heterochromatic bands were usually facultative, recognized as two spots, and all investigated taxa had a pair of satellites of heterochromatin. The similarities of total length and number of bands revealed that three varieties of A. thunbergii G. Don have a closer cytological relationship than the others. The C-banding patterns of A. longistylum and A. linearifolium were examined for the first time in this study, and the former was clearly distinguished from the others by the distribution and number of its bands. The proportion of heterochromatic bands suggested that A. thunbergii var. thunbergii is the most primitive, and A. sacculiferum the most advonced, within the section.
A new record for the Korean flora: Nervilia nipponica Makino (Orchidaceae)
Kim, Chan-Soo ; Moon, Myung-Ok ; Koh, Jung-Goon ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 229~232
Nervilia nipponica Makino (Orchidaceae), a genus and species previously unrecorded for the Korean flora, was collected in the deciduous forests of Mt. Halla, Jeju Island. This species was known to be distributed mainly from tropical to subtropical regions of Taiwan and Japan. Genus Nervilia is distinguished from other genera of tribe Nervilieae (Orchidaceae) by having only a single, plicate leaf which develops and senesces before flowering shoots appear, stems unbranched, two pollinia, and sometimes lacking a viscidium.
Triodanis Raf. ex Greene (Campanulaceae), first report for Korea
Lee, Chang-Shook ; Chung, Mi-Sook ; Chung, Yeong-Soon ; Lee, Nam-Sook ;
Korean Journal of Plant Taxonomy, volume 39, issue 3, 2009, Pages 233~236
The genus Triodanis Raf. ex Greene (Campanulaceae), which is native to America, is newly reported for Korea based on the discovery of T. perfoliata (L.) Nieuwl in the lowlands of Donneko, Seogwipo-si, Jeju-do. The common name 'Bi-neo-seu-geo-ul-sok' is given for the genus and 'Bi-neo-seu-do-ra-ji' for the species. The morphological characters of the genus and species, and illustrations of the species are provided along with photographs of its habitat.