• 제목/요약/키워드: Forsythia ovata

검색결과 8건 처리시간 0.02초

Palynological contributions to the taxonomy of family Oleaceae, with special empahsis on genus Forsythia (tribe Forsytheae)

  • Lee, Sangtae
    • 식물분류학회지
    • /
    • 제41권3호
    • /
    • pp.175-181
    • /
    • 2011
  • Traditionally, the Oleaceae has been divided into subfamilies Oleoideae and Jasminoideae. In the present paper, the taxonomical results so far made on the family were reviewed on the basis of palynology. The subfamilial classification is not well supported palynoligically, because both Myxopyrum of Jasminoideae and Comoranthus of Oleoideae having foveolate surface are well distinguished from the rest of the family having reticulate surface. The recent subfamily Nyctanthoideae (Takhtajan, 1977) including the monotypic Nyctanthus, was suggested to be included within the Jasminoideae although its closest relative on the palynological basis is different from that on the molecular basis. Tribal classification systems of the Jasminoideae are not well supported palynologically on the basis of surface character: presence or absence of bands on the mural ridge surface of the reticulum. On the basis of palynology, tribe Forsythiae including Abeliophyllum, Fontanesia, and Forsythia is monophyletic, and Fontanesia is well distinguished from the rest two. Korean species of Forsythia is divided into two: Forsythia koreana group and F. ovata-nakaii-saxatilis group. Recent discovery of F. saxatilis at a locality of F. ovata raised a question if the distinction between the two species on the basis of hairiness would be right. In the recent molecular studies, F. saxatilis var. lanceolata seems to be identified as F. saxatilis. Molecular studies showed that F. saxatilis (seemingly var. lanceolata or var. pilosa) is close to F. koreana. The fact in which the molecular result showed a close relationship between F. saxatilis varieties and F. koreana, is controversial to the result by floral and vegetative morphology. An intensive taxonomic study of these taxa would be needed.

Genetic Variations and Phylogenetic Relationships of Tribe Forsythieae (Oleaceae) Based on RAPD Analysis

  • Tae Kyoung-Hwan;Kim Dong-Kap;Kim Joo-Hwan
    • Plant Resources
    • /
    • 제8권2호
    • /
    • pp.135-144
    • /
    • 2005
  • RAPD analysis was performed to discuss the taxonomic status and phylogenetic relationships among the tribe Forsythieae and related groups. Two hundred and eighteen scorable polymorphic bands were detected from fourteen oligonucleotide primers. From the results of RAPD analysis by Nei and Li's genetic distance, each individuals of Abeliophyllum distichum showed high genetic relationships with ranging from 0.085 to 0.301, also the genus Forsythia showed from 0.042 to 0.655 among the species and populations. But, Abeliophyllum and Forsythia showed distinct dissimilarity, ranging from 0.610 to 1.258. And genetic differences among the population of Forsythia were 0.042 in F. koreana, 0.275 in F. saxatilis, 0.275 in F. ovata, 0.279 in F. nakaii, and 0.249 in F. viridissima. The UPGMA phenogram of tribe Forsythieae based on the results of RAPD analysis were presented that Abeliophyllum is distinct genus different from Forsythia. NJ tree which applied as the outgroups Fontanesia and Jasminum was derived, and it showed that tribe Forsythieae might be a monophyletic group. The genus Fontanesia was showed as sister group of tribe Forsythieae. Among the populations of taxa in Forsythia, F. koreana and F. saxatilis were more closely related, and F. ovata and F. nakaii were very closely related to F.japonica. And Fontanesia was the sister group of tribe Forsythieae.

  • PDF

ISSR 자료에 기초한 만리화(물푸레나무과)의 유전적 다양성 (Genetic diversity of Forsythia ovata Nakai (Oleaceae) based on inter-simple sequence repeats (ISSR))

  • 김상용;김영동;김진석;양병훈;김성희;이병천
    • 식물분류학회지
    • /
    • 제39권1호
    • /
    • pp.48-54
    • /
    • 2009
  • 우리나라 특산식물이며 희귀식물인 만리화(물푸레나무과) 집단의 유전적 다양성을 조사하기 위하여 5 집단 84개체에 대한 ISSR (Inter-Simple Sequence Repeats) 표지자 분석을 실시하였다. 14개의 ISSR 프라이머에서 총 93개의 증폭산물을 관찰할 수 있었으며, 유전적 다양성을 나타내는 P (Percentage of polymorphic loci)값과 S.I. (Shannon's information Index)가 다른 관목류에 비해 비교적 낮게 나타났다. 집단별 유전적 다양성은 석병산집단 (P = 64.5%, S.I. = 0.281)과 설악산B집단(P = 62.4%, S.I. = 0.292)이 높았으며, 석개재집단(P = 37.6%, S.I. = 0.178)이 가장 낮았다. 전체 유전변이 중 30.6%가 집단간에 기인하는 것으로 나타났고, 나머지 69.4%는 집단내 개체간의 차이에서 기인하였다. 이러한 결과는 분포역이 매우 제한되어 있으며 불연속적으로 출연하는 희귀종이라는 점으로 미루어 볼 때 지역간의 유전자 교류가 원활하지 못해 나타난 결과라고 추정해 볼 수 있다. 유전적 거리를 이용하여 UPGMA 방법에 의한 유집분석을 실시한 결과, 집단의 지리적 격리정도와 유전적 연관성은 비교적 일치하는 경향이었다. 본 연구 결과, 만리화의 유전자원보존을 위해서는 자생지 보호와 더불어 동적인 현지외 보존(dynamic ex situ conservation)과 같은 보다 적극적인 대책이 요구되며, 더 높은 유전적 다양성을 확보하기 위해서는 소수의 집단에서 다수 개체를 선발하기보다는 집단당 소수 개체를 다수의 집단에서 선발하는 집단 위주의 보존이 더욱 효과적일 것으로 판단된다.

한국산(韓國産) 개나리속(屬)의 해부학적(解剖學的) 성질(性質)에 관한 연구(硏究) (Studies on Anatomical Properties of Forsythia in Korea)

  • 김재경;홍병화
    • Journal of the Korean Wood Science and Technology
    • /
    • 제12권4호
    • /
    • pp.31-35
    • /
    • 1984
  • 우리 나라 특산(特産) 수종(樹種)인 개나리속(屬)의 해부학적(解剖學的) 성질(性質)을 조사(調査)한 결과(結果)는 다음과 같다. 횡단면상(橫斷面上)의 도관(導管)은 거의 단일도관(單一導管)이었고, 2~3개(個)로 복합(複合)된 복합도관(複合導管)도 가끔 나타나고, 도관(導管)의 배열상태(排列狀態)는 복사공성(輻射孔性) 환공재(環孔材)이었다. 도관(導管)의 평균(平均) 길이는 개나리 $539.98{\pm}154.71{\mu}$, 만리화 $602.22{\pm}157.38{\mu}$, 장수만리화 $465.50{\pm}83.02{\mu}$이었다. 목섬유(木纖維)의 평균(平均) 길이는 개나리 $387.40{\pm}68.23{\mu}$, 만리화 $533.90{\pm}106.77{\mu}$, 장수만리화 $482.40{\pm}72.33{\mu}$ 이었다. 방사조직(放射組織)의 형(型)은 이성공형(異性工型)이었다.

  • PDF

낙엽조경수목의 개화 및 화색에 관한 연구 (A Study on the Anthesis and Flower Color Characteristics of Deciduous Woody Landscape Plants)

  • 서병기;심경구
    • 한국조경학회지
    • /
    • 제22권4호
    • /
    • pp.149-160
    • /
    • 1995
  • We investigated the seasonal changes flower color of 163 deciduous woody landscape plants in the Suwon region from January 1, 1992 to March 20, 1993. The results were as follows; 1. By the month of anthesis of woody landscape plants, only one plant of Hamamelis japonica flowered in February, 15 species in March, 48 species in April, 63 species in May, 23 species in June, 12 species in July, and one plant of Hydrangea paniculata was flowered in August. 2. The flowering period was about 220 days from February 24, 1992 that Hamamelis japonica was anthesis to October 5, 1992 when Hydrangea paniculata was deblossomed. 3. By the flowering period of woody landscape plants, 81 species continued for 11 days through 20 days, and Rosa spp., 118 days, Hibiscus syriacus 'Yungkwang', 80 days, Largerstroemia indica, 65 days, and 6 species continued for 41 through 60 days, 10 species were 31 through 40 days, 43 species were 21 through 30 days, and 20 species were for less than 11 days. 4. The woody landscape plants flowering before leaf spreading, Hamamelis japonica, Abeliophyllum distichum, Prunus mume 'Hwahyangmi', Prunus mume 'Baekkaha', Lindera obtusiloba, Cornus officinalis, Prunus armeniaca. The others were plants with leaves spreading white flowering; Forsythia ovata 'Tetra gold', Forsythia ovata, Corylus hetrophylla, Rhododendron mucronulatum, Magnolia denudata, Forsythia koreana 'Seoul Gold', Forsythia koreana, Magnolia stellata, Acer negundo 'Elegans', Magnolia kobus, Forsythia viridissima 'Bronxensis', Prunus yedoensis, Prunus leveilleana var. pendula, Prunus persica for. albiplena, Prunus tomentosa, Prunus persia, Magnolia liliflora, Prunus glandulosa for. sinensis, Cercis chinensis, Poncirus trifoliata. 5. In terms of flower color based on KBS standard color number, 83 species were white, 44 species wer red, 21 species were yellow, 12 species were violet, and 3 species were green. 6. In terms of the flower color by month. Hamamelis japonica was yellow February. Flower colors in March were : yellow-7 species, red-3 species and white-5 species. Flower colors in April were : White-21 species, red-19 species and yellow-6 species. Flower colors in May were : White-36 species, red-16 species. The white flowers in June were 16 species. Flower colors in July were : white-4 species, red-4 species. 7. The white flower color of woody landscape plants of trees was 35 species. The red flower color was 18 species, yellow flower color was 5 species, violet flower color was 2 species, and green flower color was 3 species. Also the white flower color of woody landscape plants of shrubs was 48 species, red flower color was 25 species, yellow flower color was 17 species and violet flower color was 10 species. 8. The new 'Cultivars' of woody landscape plants are needed to introduced the development of planting design. 9. Present data of illustrated books of plants should be checked by new data that was studied in this research.

  • PDF

Perforated Ray Cells in Korean Celastraceae and Oleaceae

  • Eom, Young-Geun;Chung, Youn-Jib
    • Journal of the Korean Wood Science and Technology
    • /
    • 제26권2호
    • /
    • pp.24-28
    • /
    • 1998
  • Ray cells with perforations are recorded for the first time in the Korean Celastraceae species of Euonymus sieboldiana and Tripterygium regelii and the Oleaceae species of Abeliophyllum distichum, Forsythia ovata, Ligustrum japonicum, and Osmanthus heterophylla, All these anomalous ray cells have simple perforations, and the vessel elements of all these species have simple perforation plates, Thus, in the Korean Celastraceae and Oleaceae, the perforations of ray cells appear to be identical with the types of perforation plates in the vessel elements of the same wood, The diagnostic value of the perforated ray cells is also discussed.

  • PDF

고사목에서 분리된 선충과 곤충의 종류 및 솔수염하늘소 부위별 소나무재선충 밀도조사 (Nematodes and Insects Associated with Dead Trees, and Pine Wood Nematode Detection from the Part of Monochamus alternatus)

  • 이상명;추호렬;박남창;문일성;김준범
    • 한국응용곤충학회지
    • /
    • 제29권1호
    • /
    • pp.14-19
    • /
    • 1990
  • 부산, 경남, 경북, 전남, 전북 22개 지역 19수종 238본의 고사목에서 1989년 4월부터 9월까지 선충류와 곤충류를 조사한 결과, 소나무 재선충은 부산지역에서만 검출되었으며, 어리소나무 재선충은 진주와 진해에서 분포가 확인되었다. 고사목에서 분리.동정된 선충류는 9속 13종이었으며 6속은 미동정되었다. 동정된 선충 중 Diplogasteroides dimidius, Rhabdontolaimus adephagus, R.janae, Mikoletzkya diluta, M. ruminis, m. langcauda, Parasitorhabditis hylurgi, Panagrolaimus concolor, Panagrodontus dentatus, Prothallonema intermedium, Macrolaimus canadensis는 우리나라 미기록종이다. 한편, 고산목에서 채집된 곤충은 5목 9과 25속 27종이었는데 딱정벌레목이 3과 19속 22종으로 가장 많았다. 그중 나무종이 10속 12종으로 빈번히 채집되었으며, Hypothenemus eruditus가 꽃싸리, 싸리, 조록싸리, 만리화, 닥나무에서 채집되어 새 기주로 추가되었다. 소나무 재선충의 매개충인 솔수염하늘소는 복부에서의 선충 검출수가 가장 많았으며, 성충 한마리당 선충 보유수는 최대 127,535마리, 최소 2,616마리, 정균 42,817마리였다.

  • PDF

한국산 개나리족(Tribe Forsythieae; Oleaceae)의 수리분류학적 연구 (Numerical taxonomy of tribe Forsythieae (Oleaceae) in Korea)

  • 김동갑;김주환
    • 식물분류학회지
    • /
    • 제34권3호
    • /
    • pp.189-203
    • /
    • 2004
  • 한국산 개나리족 식물의 분류학적 한계를 규명하고 계통학적 유연관계를 논의하고자 2속 8분류군 25집단으로부터 33개의 형태형질을 측정하여 수리분류학적 분석을 실시하였다. 본 연구에는 개나리족 8분류군 외에 향선나무를 비교군으로 설정하여 미선나무속의 분류학적 한계에 대한 검토를 실시하였고 근연분류군인 개나리족과 향선나무족간의 유연관계를 밝히고자 하였다. 주성분 분석결과 주성분 1, 2, 3이 전체분산의 79.6%를 설명할 수 있는 결과를 나타내었다. 주성분적재값을 기초로 공간배열을 실시한 결과, 각 속별로 크게 3개의 유집군이 형성되었고, 개나리속은 개나리-산개나리-의성개나리 유집군과 만리화-장수만리화 유집군으로 구분되었다. 미선나무속집단은 분류군의 구분 없이 무작위적인 배열을 나타냄으로써 종하분류군들은 기본종의 개체변이로 생각된다. 향선나무는 개나리족의 개나리속집단과 미선나무집단과는 명확하게 독립적인 군집을 형성하여 족 간의 뚜렷한 한계를 나타내었다.