Comparative embryological study of Dipterocarpaceae with the putative related taxa

龙脑香科与假定的相关类群的比较胚胎学研究

基本信息

  • 批准号:
    10640687
  • 负责人:
  • 金额:
    $ 1.98万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    1998
  • 资助国家:
    日本
  • 起止时间:
    1998 至 1999
  • 项目状态:
    已结题

项目摘要

We have studied embryology of four species of three genera (Dipterocarpus, Shorea and Vateriopsis) in dipterocarpaceae. Thirteen embryological features common to three genera are found as follows : 1) The ovule is anatropous, 2) The ovule is bitegmic, 3) both the inner and outer integuments are 3-9 cell-layered, 4) The megaspore mother cell produce a linear tetrad, 5) The embryo sac is Polygonum type, 6) Vasculatures are observed in only outer integument, 7) Matured embryosac is ellipsoidall in shape, 8) Endosperm formation is the Nuclear type, 9) the perisperm is absent, 10) The funicle is very short, 11) the embryo in mature seed is symmetrical, 12) the short palisadal cells are formed in exotegmen, 13) The anther is tetrasporangiate without fibrous endothecium.However, three embryological features different among three genera are found as follows : 1) the micropyle is formed by both the integuments in Dipterocarpus and Vateriopsis, but by the only inner integument in Shorea, 2) The pachycharazy is formed in only Vateriopsis, 3) The hypostase is formed in Dipterocarpus and Shorea.Thus, we suggest that Dipterocarpus is more related with Shorea than Vateriopsis by the embryological features up to the present time.
本文对龙脑香科三属四种植物(龙脑香属、滨藜属和球蕨属)的胚胎学进行了研究。三个属共有的13个胚胎学特征如下:1)胚珠倒生,2)胚珠双珠被,3)内外珠被均为3-9层细胞,4)大孢子母细胞产生线形四分体,5)胚囊为蓼型,6)仅外珠被有维管,7)成熟胚囊椭圆形,8)胚乳形成为核型,9)外胚乳缺失,10)珠柄短,11)成熟种子胚对称,12)外种皮栅栏细胞短,13)花药四囊,无纤维状药室内壁。1)珠孔由龙脑香属和拟球蕨属的珠被形成,而肖氏属仅由内珠被形成,2)仅拟球蕨属形成厚囊,3)胚囊由龙脑香属和肖氏属形成,因此,根据迄今为止的胚胎学特征,我们认为龙脑香属与滨藜属的亲缘关系较近。

项目成果

期刊论文数量(0)
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OGINUMA Kazuo其他文献

OGINUMA Kazuo的其他文献

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{{ truncateString('OGINUMA Kazuo', 18)}}的其他基金

How to occur genomic rearrangements in Lysimachia mauritiana showing wide-rainging intraspecific karyotype polymorphism
毛里求斯金钱草如何发生基因组重排,显示广泛的种内核型多态性
  • 批准号:
    24570111
  • 财政年份:
    2012
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Karyotype evolution on Euphorbiaceae (s.l.) using young leaves
使用幼叶对大戟科 (s.l.) 进行核型进化
  • 批准号:
    15570084
  • 财政年份:
    2003
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Karyomorphology of Onagraceae and its Systematic Implications
柳叶菜科的核形态及其系统意义
  • 批准号:
    08640899
  • 财政年份:
    1996
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Chromosome study on woody plants by young leaves and buds - especially on plants belong to Hamamelididae
木本植物幼叶和芽的染色体研究 - 特别是金缕梅科植物
  • 批准号:
    03640591
  • 财政年份:
    1991
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

相似海外基金

Evolution and intra-specific variation of Dipterocarpaceae : Ecological studies and analysis
龙脑香科的进化和种内变异:生态学研究和分析
  • 批准号:
    17405016
  • 财政年份:
    2005
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Material collection for comprehensive phylogeny of the family Dipterocarpaceae
龙脑香科综合系统发育资料收集
  • 批准号:
    17405032
  • 财政年份:
    2005
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Studies on induction of multiple buds and adventitious embryo in Shorea spp.of Dipterocarpaceae
龙脑香科望天树多芽及不定胚诱导的研究
  • 批准号:
    16580129
  • 财政年份:
    2004
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Effects of reproductive systems on creation and maintenance of species diversity in Dipterocarpaceae
生殖系统对龙脑香科物种多样性创造和维持的影响
  • 批准号:
    15255005
  • 财政年份:
    2003
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Molecular systematics and phylogenetic studies of the tropical tree family dipterocarpaceae
热带树科龙脑香科的分子系统学和系统发育研究
  • 批准号:
    227575-2001
  • 财政年份:
    2003
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Discovery Grants Program - Individual
Genetic variation of Shorea spp. (Dipterocarpaceae) in Indonesia
Shorea spp. 的遗传变异。
  • 批准号:
    5397733
  • 财政年份:
    2002
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Research Grants
Genetische Variation bei Shorea spp. (Dipterocarpaceae) in Indonesien
Shorea spp 的遗传变异。
  • 批准号:
    5397735
  • 财政年份:
    2002
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Research Grants
Molecular systematics and phylogenetic studies of the tropical tree family dipterocarpaceae
热带树科龙脑香科的分子系统学和系统发育研究
  • 批准号:
    227575-2001
  • 财政年份:
    2002
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Discovery Grants Program - Individual
Molecular systematics and phylogenetic studies of the tropical tree family dipterocarpaceae
热带树科龙脑香科的分子系统学和系统发育研究
  • 批准号:
    227575-2001
  • 财政年份:
    2001
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Discovery Grants Program - Individual
Population strucuture and evolution of tree populations in tropics : Dipterocarpaceae and Mangrove.
热带地区树木种群的种群结构和进化:龙脑香科和红树林。
  • 批准号:
    12575002
  • 财政年份:
    2000
  • 资助金额:
    $ 1.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
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