查询词典 Oryza

The genotypical differences of anther-culture ability and its inheritance were investigated with seven keng rice Oryza saliva sub sp.

kcng品种按双列杂交方式配成的21个杂交组合进行花药培养，测定它们的愈伤组织诱导率和绿苗分化率。

In this review, we use Arabidopsis thaliana and Oryza sativa as examples, and summarize the study results of floral homeotic MADS-box genes in two major groups of angiosperms — core eudicots and monocots — over the past decade. Our aim was to review the functional conservation and diversity of floral homeotic MADS-box genes in angiosperms and discuss whether the ABCDE model has been conserved in monocotyledons.

本文以模式植物拟南芥和水稻为例，综述了近10年来对被子植物两大主要类群——核心真双子叶植物和单子叶植物花同源异型MADS-box基因的研究成果，分析MADS-box基因在被子植物中的功能保守性和多样性，同时探讨双子叶植物花发育的ABCDE模型在多大程度上适用于单子叶植物。

Comparative analysis of some rbcL gene cDNA sequences between wheat and other species were also carried out, the result suggested that the rbcL gene was highly conserved in examined species, common wheat is more closer related with Hordeum, Psathyrostachys, Leymus, Elymus than with Oryza and Zea.

进一步比较分析了在相关物种中rbcL基因的cDNA序列，结果显示，rbcL基因的编码区在不同属的物种间高度保守，并从分子水平表明小麦与大麦、新麦草、赖草、披碱草属等的亲源关系比与水稻、玉米等的近。

The structures of papilla of lemma among species in 21 Oryza and 2 Leersia were observed by scanning electron microscopy.

在细胞壁表面构筑的介观结构SiO〓具有结构的多样性，可作为植物分类的一种有用指标：用扫描电镜对稻属植物21个种和假稻属植物2个种的外稃表面乳突作了观察。

Recent results indicate that （1） Oryzeae is monophyletic and falls into two main clades corresponding to the traditionally recognized subtribes;（2） Close affinities of the monoecious genera are not supported, suggesting the multiple origins of unisexual florets;（3） Previous recognition of three monotypic genera （Hydrochloa, Porteresia and Prosphytochloa） is not justified;（4） Based on dating using molecular clock approach, it is estimated that Oryza and Leersia branched off from the remaining genera of Oryzeae -20 million years ago, and separated from each other -14 MYA.

目前已有的研究结果表明：稻族是单系类群，可分为两个主要分支，相当于传统的两个亚族（Zizaniinae和Oryzinae），但稻族单性花小穗是多次起源的，不宜作为划分亚族的依据；一些单型属（Hydrochloa、Porteresia和Prosphytochloa）的建立得不到分子证据的支持；根据分子钟原理估计稻族两个主要分支的分歧时间在大约2000万年前，而稻属和近缘属假稻属Leersia的分歧时间为1400万年：稻属内主要类群的分歧时间在900万年前左右。

The GA20 oxidase in Zoysiagrass shared 55%-73% homology with wheat, barley, Oryza sativa and Lolium perenne.

与小麦、大麦和水稻中的GA20氧化酶基因的核苷酸序列有55％-73％的同源性。

Gs from other plants such as Arabidopsis thaliana,Lycopersicon esculentum and Oryza sativa,respectively.

半定量RT-PCR分析显示，高浓度SO2胁迫后，在高抗系中ZmSO表达水平显著增高，而在高感系中无显著变化。

The bHLH transcription factor such as JAMYC2, JAMYC10, AtMYC2, BERJ1 and so on responsive to JAs were found in Arabidopsis thaliana, oryza sativa, Lycopersicon esculentum and many other plants, JAs can induce the expression of these genes.

在拟南芥、水稻和西红柿等植物中，发现了许多响应茉莉酸信号的bHLH家族转录因子基因，如JAMYC2、JAMYC10、AtMYC2和BERJ1等，茉莉酸可诱导这些基因的表达。

RbcL gene was obtained by polymerase chain reaction and cloned into pDM19-T vector. The positive clone identified by PCR was sequenced. The nucleotide sequence was 1266 bp long, including an ORF of 1031bp, encoding a putative 343 amino acids. The deduced amino acid sequence had a high identity above 94.13% with that of tobacco, spinach, sweet potato, corn, Arabidopsis thaliana, Oryza sativa, Vitis vinifera, Marchantia polymorpha and Citrus paradise.

阳性克隆鉴定后进行测序，序列分析结果表明：该基因片断长为1266 bp，包括1031 bp的编码区序列，编码343个氨基酸；其编码区氨基酸与烟草、菠菜、玉米、甘薯、拟南芥、水稻、葡萄、地钱和葡萄柚等9个物种的同源性94.13%以上，并构建了它们间的亲缘关系树。

The progress of research on transferring elite genes from non-AA genome wild rice into Oryza sativa through interspecific hubridization are in three respects, that is, breeding monosomic alien addition lines, constructing introgression lines and analyzing the heredity of the characters and mapping the relative genes.

利用种间有性杂交向栽培稻转移非AA组野生稻有利基因的研究在三个方面取得进展，即单体异附加系的培育、渗入系的建立以及有利性状的遗传及基因定位。

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我们普遍有大祸降临的感觉。