果然他们发现了一种抗病基因。
抗病基因是抗病分子生物学和抗病育种的基础。
Disease resistance genes are the basis of molecular biology and breeding for disease resistance.
研究人员将对数千的土豆抗病基因做进一步研究。
The researchers have already located thousands of potential resistance genes to study further.
目的拟利用同源序列法分离小麦抗病基因同源片段。
In this study, resistance gene homology fragments from wheat were isolated using homology-based method.
近年来，已有10多个植物抗病基因被克隆并定序。
More than 10 plant disease resistance genes have been cloned and sequenced in the past several years.
而抗病品种选育的最大挑战在于抗病基因的正确选择。
However, major challenge to rice breeders is to make the appropriate selection of resistance (r) genes.
利用鉴别寄主的抗病基因是检测小种致病性的唯一途径。
The identification method with resistance genes in differential hosts is most effective in practice to monitor the virulence of PST.
迄今为止，从12种植物中克隆到了50多个抗病基因。
Up to date, more than 50 resistance genes (r gene) have been cloned from 12 different plant species.
而寄主的抗病机理又因为抗病基因和防卫基因的不同而不同。
The mechanism of the plants resistance lies in the different temporal and spacious expression models of the resistant and defence genes.
连锁分子标记是研究和利用抗病基因的一种快速而有效的方法。
Using linked molecular markers has been a rapid and effective way to study the resistant gene.
利用遗传转化技术将外源抗病基因导入辣椒是辣椒抗病育种的新途径。
Technique of genetic transformation is a new method in pepper breeding , which can transfer disease-resistance genes into pepper.
植物抗病基因克隆研究对于抗病育种和抗病机制的理解具有重要意义。
Cloning of plant resistance gene is greatly helpful to crop resistance breeding and the insight of resistance mechanism.
基因间和基因内重组导致了变异，也导致了新特异性抗病基因的产生。
The intragenic and extragenic recombination results in variation. Recombination also is involved in generation novel resistance specificities.
他们正利用传统的繁殖技术，把这种抗病基因推广到美国的松树试验场。
Using traditional breeding techniques, they are introducing the resistance genes into pines on test sites in America.
这种表达模式为进化过程中从该家族不断产生新的抗病基因奠定了基础。
The expressional characteristic also provide basis for continued generation of new disease resistance genes from this family during evolution.
利用SSR分子标记技术，结合BSA法，对龙s的抗病基因进行定位。
Using SSR molecular marker technology, combined with BSA to map the resistance gene of longS.
报告了病原无毒基因和植物抗病基因克隆；植物抗病分子机制的研究进展。
Recent advances in cloning of avirulent genes in pathogens and resistant genes in plants, together with molecular mechanism of plant disease resistance, were reviewed.
不同抗源之间抗病基因的数目和所涉及的染色体也不同，彼此可以杂交重组。
Both Numbers and chromosomal locations of resistant genes are different, which indicates that the diverse resistant genes can be recombined by intervarietal cross.
植物中抗病基因所决定的抗病性是一种高水平的品种对病原菌小种的专化抗性。
Plants disease resistance controlled by the resistance gene (r gene) is a resistance with high specificity at the cultivar to race level.
许多抗病基因均具有核苷酸结合位点(NBS)和富含亮氨酸重复区(LRR)。
Most of known plant disease-resistance genes are featured with a nucleotide-binding site (NBS) and leucine-rich repeats (LRR).
这为进行抗病分子标记辅助选择，以及最终定位与克隆其抗病基因打下了良好基础。
This work has provided a solid basis for molecular marker_assisted selection (MAS) for disease resistance, and made location and cloning of disease resistant genes possible.
对南方玉米锈病抗病基因进行AFLP分析，以寻找更加紧密连锁的AFLP标记。
AFLP techniques were used to identify molecular markers tightly linked to the rust resistance gene.
已知许多植物抗病基因的蛋白质产物具有保守的结构域，如NBS、LRR、TM等。
There is conservative domain in protein products of the many known genes, such as nucleotide binding site (NBS), leucine rich repeat(LRR) and transfer membrane(TM).
这些抗病性候选标记的获得为实现牙鲆分子标记辅助育种和抗病基因克隆奠定了一定基础。
It is a basic work for the application of marker-assisted selection and cloning of anti-disease gene in Japanese flounder selective breeding program.
调查稻米古老品种的研究人员已经发现了含有抗病基因以及抵抗洪水和干旱能力更强的基因。
Researchers investigating ancient varieties of rice have found genes that confer disease resistance and make crops more able to withstand floods and drought.
调查古老的水稻品种的科学家发现了一些含有抗病基因以及抵御洪水和干旱能力更强的基因。
Researchers are investigating ancient varieties of rice have found genes of confirmed disease-resistance and make crops more able to withstand floods and drought.
经反复验证，结果稳定准确，可用于在同一PCR反应体系中对两个抗病基因进行同时筛选鉴定。
The replicated stable results proved that two resistant genes could be identified simultaneously by using corresponding PCR primer under adaptable condition.
因此，遗传育种学家致力于不断挖掘新抗源，利用新的优异抗病基因以提高宿主的抗病能力及抗性持久性。
So, breeders bend themselves to mining new resistant resource, apply new elite resistant genes to improve the resistance of rice.
因此，遗传育种学家致力于不断挖掘新抗源，利用新的优异抗病基因以提高宿主的抗病能力及抗性持久性。
So, breeders bend themselves to mining new resistant resource, apply new elite resistant genes to improve the resistance of rice.
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