野生稻

This study was to explore the relationship of genomes between Oryza alta and Oryza latifolia using genomic in situ hybridization.

［目的］采用基因组原位杂交技术研究稻属2种CCDD基因组型的野生稻宽叶野生稻和高杆野生稻基因组之间的关系。

Investigating the patterns of genetic diversity of Oryza rufipogon Griff.

普通野生稻是栽培稻最近缘的野生种，是水稻育种的重要遗传资源。

Broad and high resistance genes against brown planthopper derived from resource "2183" of Guangxi common wild rice, Oryza rufipogon Griff were tagged and mapped in this study. Genetic homozygous resistance material,"2183 "was obtained by anther culture technique and used to cross with TN1, a susceptible rice variety.

本研究选用对稻褐飞虱具有广谱高抗性的普通野生稻资源"2183"为试验材料，通过花药培养获得抗性纯合体，与感虫性材料TN1杂交和测交，获得TC_1F_2作图群体，用稻褐飞虱生物型2对群体进行抗性鉴定。

10The simulations of an empirical model indicated that, when the outcrossing rate was no more than 1%, a 2 m buffer area with pollen receiver individuals between pollen donor and receiver was sufficient to minimize the frequencies of gene flow to .9%.

对栽培稻到其野生近缘种的基因漂移进行模拟的结果表明，栽培稻到野生稻的基因漂移频率较高并且可能会对邻近的较大范围内的野生近缘种群体造成影响。

However, the weedy rice has became an another special type for long time evolution and domestication, so its resistance is superexcellence than the cultivable rice, and also become a natural gene storeroom.

然而，经历漫长的自然进化和某种特定稻作环境的驯化，杂草稻已成为稻种资源的一个特殊类型，较野生稻而言，其特殊生物学性状和抗逆性等优良性状易于在育种中直接利用，是水稻品种改良的重要育种资源，同时也是稻种遗传进化研究的必备材料。杂草稻长期自然生长繁衍，其抗病、虫、寒、旱、盐碱等特性优于栽培稻，而且与栽培稻的亲缘关系相对接近，是一种改良栽培稻抗逆性的天然基因库。

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。

This work will help to know the status of Oryza rufipogon in Hainan in the origin and evolution of the cultivated rice in China, and also offer reference for potential use of the common wild rice in Hainan.

本研究为进一步明确海南普通野生稻在中国栽培稻起源演化上的地位，并对海南普通野生稻资源的发掘利用提供理论依据。

Another three chromosome pairs showed their signals like pericentric heterochromatin block in the middle of which there was a constriction. The further studies showed there were no prominent FISH signals for this clone on the chromosomes of both O.

进一步研究表明，FISH分析中这一克隆在药用野生稻和玉米都没有明显信号；Southern分析中，药用野生稻和玉米的信号很弱，小麦、大麦、油菜和拟南芥中均未发现明显的信号。

There are abundant wild rice in Yunnan province. The contents of amino acids, carbon and nitrogen of a few kinds of wild rice and cultivated rice's stem, leaves and seeds were analyzed.

云南有较丰富的野生稻资源，研究对云南及其它来源的野生稻和栽培稻茎、叶和稻米中氨基酸含量及碳、氮含量进行了分析。

Hainan is one of the two provinces that had the three kinds of wild rice, and genetic diversity was abundant.

海南是我国具有这三种野生稻的两个省份之一，并且野生稻资源分布广泛，遗传多样性丰富。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。