• 원예과학기술지
• /
• 제17권1호
• /
• pp.23-28
• /
• 1999

Prunus cerasifera, P. domestica 및 P. salicina에서 기원된 자두 53 종 또는 품종으로 부터 27 형태형질의 특성을 조사하여 품종 동정에 필요한 기초자료를 제공하고, 그들간의 분류적 관계를 알아보기 위하여 주성분분석 및 집괴분석을 실시하였다. 조사된 형태형질 중 잎의 크기, 잎의 형태 및 엽내 털 발생정도 등이 자 두아속 식물의 동정 및 분류적 관계 해석에 있어서 상당히 유용하게 이용될 수 있을 것으로 단되었으며, 잎의 길이, 엽병 길이, 밀선수, 형, 엽저, 만개기 등은 P. domestica계 자두와 P. salicina계 자두간에 명확한 차이를 나타내었다. 또한 주성분분석 득점치를 이용한 비가 평균결합법에 의한 집괴분석 결과 53개 분류 군들은 평균거리 1.0을 기준으로 할 때 P. alicina-P. cerasifera 표현군, P. domestica 표현군 및 P. pinosa 표현군 등 3개의 표현군으로 분류될 수 있어, 분류군들의 대략적인 분류적 관계 분석이 가능하였다. 그러나 정확한 종군 분류를 위해서는 보다 많은 형태형질의 용이 필요할 것으로 판단되었다.

• Journal of Plant Biology
• /
• 제27권2호
• /
• pp.61-72
• /
• 1984

The concept of natural grouping of plant designated as the "Amentiferous" is no longer given serious credence, and many of the families included in this grouping have been dispersed in diverse order. Because a review of taxonomic treatments of amentiferous taxa reveals diverse classifications, it has become necessary to investigate new characteristics and attempt to determine the significance of these characteristics in terms of amentiferous taxonomy. Protein analyses by isoelectrofocusing(IEF) and rocket immunoelectrophoresis(RIE) have proved to be useful in the delicitation of Quercus taxa using pollen extracts from selected taxa. When Quercus pollen extracts were separated by electrophoresis based on their isoelectric points in a stable pH gradient and substrates for estrase activity were stained, ten bands were revealed between pH 5-14. Within Lepidobalanus grouping, a great diversity in the pollen protein zymograms was observed with some segregation corresponding to the designated taxonomic sections. Two taxa of Cyclobalanopsis produced a zymogram that is somewhat similar to taxa included within the section Prinus of Lepidobalanus, and less similar to taxa within the section Cerris of the same subgenus. Three tested taxa of the Cerris are in the similar zymogram each other, being segregable from the taxa of Prinus. Quantitative and qualitative analyses for serological relationships within and among th Quercus were also employed. To calculate the degree of protein similarity, total rocket heights obtained from RIE provided an index of serological correspondence(SC). It is reconfirmed that the Quercus is distantly separated from the Fagus according to SC. Comparative data from rocket number and SC in the tested taxa of Quercus also indicate that Lepidobalanus is separable from Cyclobalanopsis. Within the Lepidobalanus Q. acutissima and Q. acutissima x variabilis are almost homogeneors and distinguishable from the other tested taxa of same subgenus. Although the number of taxa tested has been limited, the overall serological evidence best reflects the classification proposed by Redher(1940) and Melchior (1964), having the genus Quercus subdivided into three subgunera: Erythrobalanus, Lepidobalanus, and Cyclobalanopsis.alanopsis.

• 한국자원식물학회지
• /
• 제31권1호
• /
• pp.37-51
• /
• 2018

국내에 분포하는 천남성속의 계통학적 유연관계와 한약재 천남성(Arisaematis Rhizoma)으로 사용되는 천남성 3종(둥근잎천남성, 두루미천남성, 일파산남성)에 대한 분류학적 특징을 분석하기 위하여 천남성속 식물에 대한 분자계통학적 연구를 수행하였다. 3개의 범용성 DNA 바코드(ITS, matK, rbcL) 염기서열을 이용하여 국내 분포 천남성속 8분류군과 중국에 분포하는 약전수재 종 1분류군을 포함하는 9종 50개 시료와 같은 과의 Dracunculus vulgaris를 군외군으로 하여 유연관계를 분석하였다. 3개의 개별 DNA 바코드 염기서열과 이들을 유합한 염기서열로 계통학적 유연관계를 분석한 결과, 천남성속의 9 분류군은 6개의 독립적인 분계조를 형성하며 구별되었으며(Clade I, 둥근잎천남성 및 천남성; Clade II, 점박이천남성 및 섬남성; Clade III, 큰천남성; Clade IV, 일파산남성; Clade V, 두루미천남성; Clade VI, 무늬천남성 및 거문천남성), 이들 6개의 분계조는 각각 Pedatisecta절, Sinarisaema절, 및 Tortuosa절로 분류되었다. 또한 이들 DNA 바코드 구간의 비교 결과는 천남성속 식물의 종 및 종 이하 분류 단위의 분류학적 재검토의 필요성에 대한 중요한 정보를 제공하였다. 하지만 대한민국약전에 수재되어 한약재로 사용가능한 3종의 천남성 기원종의 종내 분류학적 연관성이나 분자계통학적 특징은 확인되지 않았다.

• 한국어류학회지
• /
• 제34권4호
• /
• pp.231-243
• /
• 2022

한강 지류인 달천에서 발견된 한국산 납자루과 1미기재종 Acheilognathus sp. HR의 분류학적 위치를 알아보기 위하여 분자계통학적 및 형태학적 특성을 선행 연구와 비교 분석하였다. 분자계통학적 분석 결과에서 A. sp. HR은 Acheilognathus tabira의 5개 아종과 동일한 유전적 clade를 형성하면서도 고유한 유전자형을 기반으로 별도의 단계통군을 형성하여 A. tabira의 5개 아종과도 분명한 차이를 보였다. 또한, 형태학적 분석 결과에서 A. sp. HR은 수컷의 등지느러미와 뒷지느러미 외연부는 볼록하게 둥글고, 각각 회색과 흰색을 띠는 점, 치어의 등지느러미 상에는 흑색 반점이 존재하나 암컷 성어의 등지느러미 상에는 흑색 반점이 존재하지 않는 점, 등지느러미 분기 연조 수가 12~13개로 그 범위가 중복되지 않을 정도로 많은 점, 입수염 길이가 짧고, 체고가 높은 점 등에서 A. tabira를 구성하는 5개 아종과 잘 구분되었다. 따라서, A. sp. HR은 A. tabira의 5개 아종과 분자계 통학적, 형태학적 및 제한적 분포 특성에 의하여 서로 구별되는 별도의 종 수준에 있다고 판단된다.

• ALGAE
• /
• 제19권3호
• /
• pp.277-282
• /
• 2004

Prymnesium patelliferum was collected from Hwajinpo, South Korea in November 2002. This is the first record of P. patelliferum in Korea waters. The characteristic shape of P. patelliferum was that of a rice grain. Cells were sub spherical or elongate, and sometimes slightly compressed. The motile cells of P. patelliferum (8-10 ㎛ long, 5-6 ㎛ broad) prossessed two equal or sub equal flagella(10.5-13 ㎛) and a short non-coiling haptonema (3-5 ㎛). The cell was covered by two layers of organic scales, which were important taxonomic characteristics. Internal scales were a narrow inflexed rim on the distal face, a thickening central and radial fibrillar pattern. External scales were very similar to internal scales with relatively tall upright rims. The ridges were in quadrants with 11-12 ridges per quadrant.

• Mycobiology
• /
• 제40권1호
• /
• pp.1-7
• /
• 2012

$Lobaria$ (Schreb.) Hoffm is a common foliose lichen genus found on the Korean Peninsula, yet until now, no revision study has been done on this genus. After careful examination of specimens deposited in the Korean Lichen Research Institute (KoLRI), nine distinct species of $Lobaria$ were confirmed. Morphological characteristics such as the presence or absence of isidia, or whether or not the surface was ridged or smooth, and chemical characteristics such as the result of the medulla reaction were of significant importance in the differentiation of species. Here, we provided detailed descriptions together with a key to all the known Korean species.

• Journal of Species Research
• /
• 제5권3호
• /
• pp.264-271
• /
• 2016

A capitellid species, Heteromastus filiformis ($Clapar\grave{e}de$, 1864) is newly reported from Korean waters with the description and illustrations. Korean materials of the present study show several characteristics generally agreed well with the previous descriptions of H. filiformis as follows: the thorax is composed of the first achaetigerous peristomium and following 11 thoracic chaetigers; the capillary chaetae are present on the thoracic chaetigers 1-5 and narrowly bilimbate; the thoracic hooded hooks are appeared on the chaetigers 6-11 and have indistinct nodes on the shaft and several teeth above the main fang; the abdominal hooded hooks possess distinct nodes on the shaft and a few teeth above the main fang; the branchiae appearing on the posterior abdominal segments are the broadly-based and rounded lamellae projecting posteriorly. The authors reviewed the taxonomy of Heteromastus with a comparison of morphological characteristics among worldwide species, and provided a key of them.

• Animal Systematics, Evolution and Diversity
• /
• 제32권4호
• /
• pp.281-292
• /
• 2016

The genus Sinopoda (Araneae, Sparassidae) from Korea are taxonomically reviewed. As a result, Sinopoda aureola is removed from the synonymy of Sinopoda stellatops and treated as a valid species. In addition, two new species, Sinopoda biguttata sp. nov. and Sinopoda nigrobrunnea sp. nov. are described with accompanying photographs. The new species, S. biguttata sp. nov., can be distinguished from other congeners by the combination of following characteristics: a pair of large ivory patterns near posterior muscle sigilla on opisthosoma; relatively small internal genitalia and long, distally bifurcated fertilization duct. The new species, S. nigrobrunnea sp. nov., can be distinguished from other congeners by the combination of following characteristics: lateral edge of epigyne angled; edge of epigynal pocket linear; glandular appendages perpendicularly directed then curved posteriorly.

• Journal of Plant Biology
• /
• 제28권3호
• /
• pp.179-190
• /
• 1985

A review of taxonomic treatments of the amentiferous plant taxa reveals diverse classification. It appears to be necessary to investigate new characteristics and attempt to determine the significance of these characteristics in terms of amentiferous systematics. Serological techniques have been empolyed in a systematic investigation of selected taxa of the Amentiferae: Betulaceae, Fagaceae, Juglandaceae, Myricaceae, and Salicaceae. Data by qualitative analysis of pollen proteins, double immunodiffusion and conventional immunoelectrophoresis, have proved to be valuable in delimitation of taxa tested. When the antisera against Alnus hirsuta, Betula platyphylla var. japonica, Quercus aliena, Q. dentata, Q. glauca were tested; Alnus and Betula have the greatest protein similarity to one another; and next to the rest of betulaceous genera. Relatively strong protein similarity obtained with most representatives of Quercus and Fagus when reacted with antisera against Alnus and Betula is very much in contrast to the weak protein similarity obtained for the genera of Juglandaceae, Myricaceae, particularly of Salicaceae Tested with the same antisera. When Quercus antisera were used for various genera, the weakest protein similarity was obtained with Populus.

• The Korean Journal of Ecology
• /
• 제20권4호
• /
• pp.285-291
• /
• 1997

The taxonomic characteristics of Eupatorium rugosum were reviewed and growth responses under different light intensities were investigated. Changes of soil and vegetation environments at experimental plots on Mt. Namsan were surveyed and the distribution pattern examined. The distribution of E. rugosum was closely related to the content of total nitrogen and available phosphorus in the soil. No competitors which could inhibit the growth of E. rugosum were present. Growth of E. rugosum was highest at a light intensity of 7, 500 lux, but dry weight was highest at a light intensity of 15, 000 lux followed by 30, 000 and 7, 500 lux. Growth in height of E. rugosum under a light intensity of 1, 500 lux continued even though the amount of growth was small. E. rugosum is found throughout the area of Mt. Namsan, and its density is higher at the roadside and in valley regions. E. rugosum appeared at 25 of 50 quadrats on Mt. Namsan, and the mean coverage of E. rugosum in survey quadrats was 12%.