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基于表型性状的蝴蝶兰种质资源分类 总被引:2,自引:0,他引:2
《中国园艺文摘》2017,(2)
文章运用聚类分析,对蝴蝶兰213份种质资源的26个表型性状进行分类研究。R型聚类分析结果表明,蝴蝶兰叶部的4个性状:叶形、叶片姿态、叶片花青甙、叶片纹理,以及花部的11个性状:花梗颜色、花序类型、花朵正面宽(花径)、花瓣厚度、总花朵数、花香、花色、侧萼片形状、花瓣形状、唇瓣须和类型在分类中起重要作用。Q型聚类分析得出,在结合线L1=4.667处将213份蝴蝶兰品种资源分为2大类型,即杂交种和原生种,这2大类依据各品种的相似性状细分为20小类,基本弄清蝴蝶兰种质资源的亲缘关系。 相似文献
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在总结中国瑞香属种质资源类型、分布及特点的基础上,对我国瑞香属植物资源的开发利用现状进行了综述。结果表明:我国瑞香属植物资源有46种、12变种、1变型和少量栽培品种,它们具有花色丰富、株型富于变化以及不少种类花芳香等特点;中国瑞香属植物的水平分布和垂直分布范围广、跨度大,但四川、云南、贵州以及甘肃一带是其现代分布中心;针对其种质资源研究与开发利用中存在的问题提出今后发展的方向与建议,为我国瑞香属植物资源的有效持续利用和物种多样性保护提供依据。 相似文献
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樱属植物资源及其开发利用价值 总被引:1,自引:0,他引:1
《现代园艺》2016,(23)
分析了樱属植物资源特点,其形态、花色、花形、花期及叶性状等观赏特性,以及食用、木材及生态价值、药用和护肤价值,并从樱花专类园、道路、水面、公园、庭院绿化、盆景等方面对樱属植物的园林应用进行探讨,为樱属植物的种质资源保护和开发利用提供参考。 相似文献
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牡丹种质资源遗传多样性研究进展 总被引:2,自引:0,他引:2
种质资源是现代育种和生物技术研究的物质基础.牡丹种质资源的研究为探讨牡丹的起源、进化、分类、育种和资源利用提供科学依据.通过对牡丹种质资源概况的介绍,综述牡丹形态学、细胞学及DNA分子标记等几方面种质资源遗传多样性的研究进展,探讨牡丹种质资源遗传多样性的研究现状及尚需解决的问题,并就进一步开展牡丹种质资源的研究进行了分析. 相似文献
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月季突变体抑制差减杂交cDNA文库构建及分析 总被引:1,自引:0,他引:1
为了分析月季花色花香突变机理和揭示花色花香代谢的相关基因, 利用抑制性消减杂交技术分离了月季红花无香突变体‘往日情怀’ (以下简称突变体) 与其野生型金黄色浓香品系‘金银岛’ (以下简称野生型) 之间表达差异cDNA片段。分别以突变体作为驱赶子, 野生型为检测子, 以及以野生型作为驱赶子, 突变体为检测子建立了两个差异表达cDNA文库WSSH和JSSH, 分别代表在突变体和野生型中特异表达的cDNA; 再经文库高密度点阵膜的杂交差示筛选分析, 在WSSH库中获得特异表达的27个阳性克隆, 在JSSH文库中得到25个阳性克隆。差异表达克隆测序后经BLAST比对分析发现WSSH文库中含有与红花突变体的花青素积累直接相关的CHS、DFR、细胞色素P450加单氧酶、乙二醛酶Ⅰ、己糖转移因子、MYB1 转录因子、S - 腺苷蛋氨酸转移酶、ADR等花色相关EST; JSSH文库中含有与野生型花香形成相关的月季甲基间苯二酚O - 甲基转移酶、转醛醇酶、Acyl-CoA 结合蛋白、钙调素结合蛋白、MYB92转录因子的EST以及导致芽变的Ty1-cop ia-like逆转座子。 相似文献
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The performance of electronic nose (E-nose) for Chinese Cymbidium scent profiling has been evaluated. Changes in scent profiles of two Cymbidium ensifolium cultivars have been monitored at different flowering stages (initial flowering, full flowering, and terminal flowering) and different times combined with two gas collecting devices. Samples were collected by static headspace (SHS) method. How E-nose can be used for pattern recognition and for studying the releasing of flower scent were proposed. Data obtained were subjected to principal component analysis (PCA) and discriminant function analysis (DFA). PCA was performed on the initially instrumental data to explore the structure of each data set and such result showed that the sensory data contained information related to the cultivar and to time spots. DFA was performed to improve the results, leading to clear separations between the sample groups. Gas collecting device did not seriously affect the result of PCA and DFA. Relative aroma intensity (RAI) was proposed as an alternative concept to compare scent intensity between samples on different time points. These results demonstrate the potential application of the E-nose to evaluate the scent profile of flower. 相似文献
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Xie Jirong Xiong Yunhai Liang Guolu Cheng Zaiquan Tang Kaixue Huang Xingqi 《Scientia Horticulturae》2008
To investigate the floral fragrance new genes, scent mutant of rose was used here. The suppressive subtraction hybridization (SSH) technique and micoarray analysis of the clones were used to isolate the cDNA fragments, which showed differential expression between the rose scent mutant ‘Wangriqinghuai’ and wild type ‘Jinyindao’ (Rosa × hybrida), and RT-PCR was used to identify up-regulated expressed genes. 16 positive contigs of JSSH were obtained. Some ESTs such as RcOMT1, RcOMT2, RhMYB92 and RhGP1 were known to regulate scent metabolism, and 5 ESTs with no homology in NCBI may represent new genes involved in rose flower fragrance metabolism. SSH technique combined with cDNA micoarray would be useful for analysis and isolation of the genes related to rose floral scent. 相似文献
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1993~1997年研究表明,在贵阳地区,适应性较强的唐菖蒲浅色花品种的休眠球茎、发芽种球、幼苗期球茎及幼苗根的超氧化物歧化酶活性高于适应性较弱的深色花品种,而深色花品种的开花期母球、新球、新根、茎、叶、花药的蛋白质含量以及上部叶片的光饱和点、净光合速率、光呼吸速率、暗呼吸速率高于浅色花品种,花瓣的蛋白质含量低于浅色花品种。由此推测,唐菖蒲不同品种的栽培适应性差异与以上生理生化性状差异有关。 相似文献
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