抗病

Allelism in vestigation of genes resistante to Fusarium wilt in cotton suggested that there were 2 genes(assigned symbols Fw1 and Fw2)in 5 cultivars used.

1995-1996年，对我国育成的有代表性的5个抗病品种进行抗枯萎病基因的等位性测定。结果表明：在所选用的5个抗病品种中至少存在两个不同的抗病基因(暂定名为Fwl和Fw2)。

Carthlicum, and was located on region of wheat chromosome 2AL near the gene Pm4b, it maybe either Pm4b, or a new gene linked to Pm4b. Temporarily, the gene was designated as PmPS5A. A dominant major gene conferring resistance to powdery mildew was identified in a BC〓F〓 population derived from a cross of amphidiploid Am9 and wheat cv. Laizhou953. The gene originated from T.

通过与含有已知抗病基因品种或品系的对该20个菌株反应模式比较和系谱分析，推测Am9／莱州953*〓 F〓含有Pm4b，波斯小麦PS5含有Pm4b与一个未知抗病基因组合；（DR147／Ae14）／／莱州953*〓 F〓和硬粒小麦DR147含有Pm4a和一个未知抗病基因组合；尾状山羊草Ae14和小伞山羊草Y39含有新的抗白粉病基因。

This study actively normalizes the identification method of the bacterialwilt resistance in the vegetables of Aubergine family and proposes the practicalbreeding tactics at the same time.

本文较为全面的研究了茄科蔬菜对青枯病的最适抗病鉴定方法、抗病遗传机理、抗病育种方法及抗病基因的分子标记，并尽可能地规范茄科蔬菜抗青枯病鉴定方法，提出切实可行的抗病育种策略。

There was big difference among the 22 different materials in the disease resistance. Translocation lines Pm97033 showed the highest resistance in reaction than others. The percentage of diseased root and severed level were 11.3% and 5.4%; substitution lines Wan7107 showed medium resistance to the fungus, the percentage of diseased root and severity level were 21.4% and 10.6%; F5 generation of common wheat with Till showed higher resistance to take-all fungus than the PS progenies of common wheat with Aegilops tauschii or the other common wheat varieties.

菌饼＋菌粒法对宁春4号的致病力明显高于菌饼法和菌粒法，其病根率、严重度和病茎率分别达到100.0%，57.3%和28.6%。22个遗传背景不同的小麦材料间抗病性差异较大，其中小麦－簇毛麦易位系Pm97033的抗病性最强，病根率和严重度分别为11.3%和5.4%；代换系Wan7107次之，病根率和严重度分别为21.4%和10.6%；硬粒小麦－簇毛麦双二倍体(TH1)与普通小麦品种杂交后代的抗病性强于粗山羊草与普通小麦品种杂交后代。

The response begins with the recognition of plant resistance with the corresponding avirulence gene from the pathogen.

这种反应由植物抗病基因与病原菌无毒基因的相互识别开始，由R基因下游的一些基因整合不同的抗病信号，通过水杨酸将抗病信号传递下去。

And then, Plasmodiophora brassicae were inoculated on transformed roots and transformed plants respectively for identification and screening of club root disease-resistant transformants.

根据转化体上根肿病的发病程度，评价不同转化系对根肿病的抗病性表现以及抗病转化系的抗病机理。

Disease-resistance test of the plants demonstrated that the grey-mildew tolerance ofthe transgenic plants, which varied with different transgenic plants, was strongerthan that of the untransformed plants.

转化植株的抗病性鉴定表明转基因植株的抗病能力较未转化植株有显著提高，但在不同转基因株系之间抗病性提高程度有着显著的差异。

In this study, genetic analyses were conducted to determine the genetic basis in an elite resistant inbred line Siyi with complete resistance to maize dwarf mosaic. A new genetic model, two dominant complementary genes conditioning the resistance, were found by Mendelian genetic analysis based on parents, F1, F2 and backcrosses in three successive years' field trails. The two genes were further mapped near the centromere of chromosome 3 and 6, respectively by tightly linked microsatellite markers using 242 plants from F2 generation. The resistance gene on chromosome 3 is 1.0 cM apart from the flanking markers phi053 and umc1527, respectively. Whereas the linkage distance between two flanking markers bnlg1600 and phi075 and resistance gene on chromosome 6 was 1.0 and 4.0 cM, respectively. Genotypic analysis of the plants from testcross and F3 populations supported the new genetic manners.

课题组通过连续三年的抗病鉴定，在国内种质资源中筛选出一份综合农艺性状优良、配合力较高的自交系四一，三年的表型遗传研究和两年的分子标记工作，发现四一中的玉米矮花叶病抗性是由两对显性互补基因控制的，进而利用F2作图群体，把发现的两个基因定位在第三和第六染色体的着丝点附近，并获得了双侧紧密连锁的分子标记连锁图谱，其中第三染色体上的分子标记UMC1527和phi053从抗病基因双侧逼近1 cM，而第六染色体上的分子标记phi075、bnlg1600从抗病基因双侧分别逼近4 cM和1 cM；利用B2群体、F2：3家系、BC3F1群体和带有第三、第六染色体抗病基因以及两个抗病基因的近等基因系，进一步证实了四一中成株期抗性是由两个显性互补基因控制的。

For further confirming the new genetic model, a set of NILs carrying different number of the resistance genes were developed, genotypic analysis of NILs clearly show that two dominant complementary genes cooperatively control the resistance to maize dwarf mosaic in maize.

两个显性互补抗病基因的发现和定位，丰富了我国玉米矮花叶病抗病基因资源，为标记辅助选择和抗病基因克隆以及抗病育种工作提供基础。

Indica variety ZYQ8 is an important genetic resource resistant to rice blast disease in rice breeding in North China.in this study,resistance identification of the populations of F1,F2,DH and B1F1of the crosses of ZYQ8×Jingxi17 (JX17) and ZYQ8×Lijiangxintuanheigu was carried out by using a Chinese differential strainZH10-8-14 from North China and a Japanese differential strain Ken54-04 from Japan and the results demonstrated that ZYQ8 had one dominant major gene Pi-zh which had been reported by Zhu L.H., et al., The results from experiments in which the F2 populations of ZYQ8×nine different varieties with known resistant genes were inoculated with strain Ken54-04 indicated that the gene Pi-zh was a new gene and non-allelic to nine known gene loci,namely Pi-i,Pi-km,Pi-z,Pi-ta,Pi-ta2,Pi-zt,Pi-kp,Pi-b and Pi-t.

籼稻品种窄叶青8号是我国北方稻区水稻育种上重要的稻瘟病抗源之一。本文利用我国北方稻区的代表菌系中10-8-14和日本的代表菌系研54-04，对窄叶青8号与感病品种京系17号和丽江新团黑谷的杂交F1、F2、DH和B1F1群体进行抗病性鉴定。根据抗病性的分离，确认窄叶青8号的抗性由1对显性主效基因，即朱立煌等报道的Pi-zh基因控制。利用菌系研54-04接种窄叶青8号与9个具有已知抗病基因的鉴别品种杂交的F2群体，各群体都表现二基因的独立遗传，证明Pi-zh基因与Pi-i、Pi-km|、Pi-z、Pi-ta、Pi-taz、Pi-zt、Pi-kp、Pi-b和Pi-t等9个已知抗病基因间存在非等位关系，是新的抗稻瘟病基因。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。