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Another trend apparent throughout the tribe is the reduction of the large, terminal inflorescence to a few digitate or paired racemes, often arising from the axils of specialized leaves with inflated sheaths and reduced blades. In the most complex genera the ultimate unit is a boat-shaped sheath without a blade subtending 1 or 2 short racemes, and by repeated branching many of these units are gathered into a leafy compound panicle.The spikelets contain 2 florets, but this is not obvious as the florets are delicate and usually reduced.
Another趋势对一些指状的或的大,顶生的开花的减少配对总状花序,在最多复合体属里末级的单位是一舟状的没有一叶片对着1或2短总状花序的鞘,并且通过被重复的分枝大多数这些件被收集成为一多叶的复合的panicle。
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The spiny eel , belonging to Perciformes, Osteichthyes, is a kind of little freshwater fish distributed in Southern China. In 1998, Our lab detected XX/XY differentiated sex chromosomes in this specie with karyotypic analysis, and then with chromosomal binding and SC observation, we identified that its two largest metacentric chromosomes were X, Y sex chromosomes in 1999. X, Y chromosomes differ each other not only in the distribution of heterochromatin but also in their shapes, which make them could be recognized directly under the light-microscope without any banding treatment.
刺鳅,属鲈形目、刺鳅科(Perciformes,Mastacembelidae),是广泛分布于中国南方的小型淡水鱼类。1998年,我室通过核型分析,首次发现该物种具有明显分化的异形性染色体,其性别决定类型为XX/XY型。1999年,本室通过染色体显带、精母细胞联会复合体观察,再次确认刺鳅染色体组中最大的一对中部着丝粒染色体为X、Y性染色体,两者不仅已经出现结构异染色质分布上的不同,同时在外部形态上也存在明显差异,识别特征鲜明,在光镜观察下无需显带即能清晰辨认性染色体。
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The phenomenon of polyploidy and aneuploidy exists in the Genus, in which there are polyploid complex.
对19个分类群作了核型观察,其中16个分类群作了组型分析,结果表明各分类群间核型差异显著,该属普遍存在着多倍性和非整倍性现象,并有多倍体复合体类群存在。
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The genera Agrostis , Calamagrostis , and Deyeuxia form an intergrading complex of three incompletely separated entities.
属Agrostis,Calamagrostis 和Deyeuxia 形成一3 个不完全分开的实体的过渡性复合体。
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Reduction of ovule number as a tendency of speciation in the genus is substantiated by the occurrence of tri_ovulate cones coupled with comprehensive characters of the genus. The metamorphic patterns as well as the leaf nature of the outer envelope indicate that female cones of Ephedra are compound while the female reproductive units of the ovulate cone have been reduced from secondary reproductive shoots similar to those of cordaites by phylogenetic transformation, fusion and reduction. Each fertile bract together with its axillary female reproductive unit composed the Bract Scale and Seed Scale Complex of Ephedra .
基于返祖性畸形三胚珠球花的出现及其他形态特征,认为麻黄属胚珠数目减少是该属内物种特化的一个趋势;利用雌球花发育的畸形现象及外珠被的形态学本质提出麻黄属的雌球果为复轴性构造,雌性生殖单位是由类似于科达类的次级生殖枝构造经系统发育变态、融合、简化成现存的生胚珠构造式样,每一可育苞片及其腋内雌性生殖单位共同组成了麻黄属的苞鳞_种鳞复合体。
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According to Bract Scale and Seed Scale Complex theory and the observation results in this experiment, the author considers that the Gnetum genus belongs to the evolvement line ofBSSC. and is more closer to conifers than other seed plant.
根据苞鳞-种鳞复合体理论,结合本文的观察结果,作者认为买麻藤属植物是苞鳞-种鳞复合体演化线上的成员,与松杉类植物的关系比较近。
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Because distribution boundary between the East Clade and the West Clade was almost the same for the division line of physical environmental heterogenicity between the East and the West within the East Asia (division line between the second and third stage in accordance of topographical disjunction), it was speculated that physical environmental heterogenicity between the East and the West had played a key role in the phylogeny of the complex.
rDNA ITS区比较序列分析和AFLP分析都表明粉花绣线菊复合体各变异类型间已发生了一定程度的分化,确认了基于形态证据对粉花绣线菊复合体内各变异类型的认知,同时也表明ITS序列和AFLP是探讨绣线菊属或亚科种下或近缘种间系统发育关系的有效分子标记。
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Most of them arised directly or indirectly from the white variety 'Duncan' by periclinal chimera.
现有的栽培品种大多是由白色品种'Duncan'经芽条续变而,属周缘嵌合体。
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The results showed that leaf epidermal cells were polygonous or irregular in shape. Stomatal complexes only present on abaxial epidermis and the stomata was paracytic type. There were five types of anticlinal walls of abaxial and adaxial cells (straight, rounded, undulated, sinuous, straight-curved). Trichomes on abaxial epidermis exist or not. Ornamention types of periclinal walls could be divided into punctuate, smooth and striate. Ornamention of periclinal walls on inner side of abaxial epidermal cells varied widely (irregular, smooth, roughly reticular, micro hairy, granular, scaly).
结果表明:润楠属植物叶表皮细胞形状为多边形或不规则形,气孔复合体均为平列型且仅分布在下表皮;上下表皮细胞的垂周壁式样有5种类型:平直、圆滑、技波、波状、平直-弓形;下表皮毛被有或无;上表皮平周壁纹饰类型有:点状、平滑、条纹;下表皮内面平周壁纹饰类型有:不规则、平滑、粗糙网状、微毛状、颗粒状、鳞片状。
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This taxonomically complex genus is closely related to, and sometimes difficult to distinguish from, Acronema .
这taxonomically复合体属被与密切相关,和有时难区分从,Acronema。
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Lota tata:江鳕
标准7 兴凯湖湿地有鱼类6 目12 科65 种,从区系组成上可分为5 种复合体,乌苏里白鲑(Coregonus ussuriensis)、江鳕(Lota tata) 2 种属北极淡水鱼类区系合体;黑斑狗鱼(Esox reicherti)等4 种为北方平原鱼类区系复合体;
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syzygy:融合体
心灵中属於个人部分(包括意识和潜意识在内)的特殊结构有四种:自我(ego)、人格面具(persona)、阴影(shadow)、以及阿尼姆斯(animus)∕阿尼玛(anima)之融合体(syzygy)(二联对应).
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Dyas:二叠纪;二叠系
Dyadosporonites 双孔双胞孢属 | Dyas 二叠纪;二叠系 | dyas 孢粉二合体
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Esox reicherti:黑斑狗鱼
标准7 兴凯湖湿地有鱼类6 目12 科65 种,从区系组成上可分为5 种复合体,乌苏里白鲑(Coregonus ussuriensis)、江鳕(Lota tata) 2 种属北极淡水鱼类区系合体;黑斑狗鱼(Esox reicherti)等4 种为北方平原鱼类区系复合体;