查询词典 Oryza sativa

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。

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 classification of Oryza and identification of Chinese wild rice.

文章题目稻属分类与我国野生稻的定名问题。

In this study, we show that Oryza australiensis ,a wild relative of the Asian cultivated rice O.

在野生稻里，澳洲野生稻属于EE基因组中的二倍体类型。

In this paper the auther summaried the research of excellent genes in Oryza officinalis Wall and utilization of those genes

本文对国内外药用野生稻有利基因发掘及其利用的研究进展进行综述。

These provided a base for further study on the structure and function of these cDNAs and evolutionary process of Yuanjiang Oryza rifupongon .

本研究为进一步分析这些cDNA片段的结构、功能和探讨元江普通野生稻在栽培稻演化中的地位奠定了基础。

Oryza officinalis Wall accumulated abundant genetic diversity and contains a large number of important beneficial genes.

药用野生稻具有丰富的遗传多样性并含有大量优异基因。

In studies on Oryza.

原位杂交在稻属研究中的应用。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？