诱发突变

DNA在紫外线诱导下会产生损伤，这种损伤会导致生物体生长迟缓、诱发突变甚至死亡。

Lesions will be induced by ultraviolet light in DNA , which will cause growth delay , mutagenesis , even death of organism .

诱发突变率为自发突变率的7.0～9.3倍，接近一个数量级。

Mutagenesis rate are higher than that of spontaneous mutation by 7.0 ~ 9.3 times .

[目的]主要研究三羟异黄酮（genistein，GEN）的诱发突变及对细胞DNA的损伤作用，同时初步探讨细胞DNA损伤与氧化效应的关系。

[ Objective ] To study the mutagenicity and DNA damage of genistein ( GEN ) .

小黑麦（Triticale）诱发突变的细胞遗传

The cell inheritance of Triticale by induced mutation

所有GDH~+变种，包括自亚硝酸诱发突变或自发突变来源的，都能诱导生成ADH。

All the GDH-positive mutants including those obtained by nitrous acid treatment and those of spontaneous origin are capable of inductive synthesis of ADH .

利用30千伦~（60）Coγ射线辐照早籼品种桂朝二号诱发突变获得一个高秆突变体Mh-1。

A tall-culm mutant , Mh-1 , is obtained by using radiation of 60Co Yd ray ( 30 kr ) in a variety of hsien rice .

结果表明，MNNG的诱发突变率高于自发突变率27.8倍，并有剂量－效应关系。

Results showed that the mutation frequency induced by MNNG was 27.8 folds higher than that of the spontaneous mutation frequency and had dose-effect dependent .

植物诱发突变技术育种研究现状与展望

Current status and outlook perspectives of induced mutations for plant improvement

此类突变小鼠通常由自发或诱发突变得来。

This mutant mouse can be obtained by spontaneity or artificial method .

辐照大豆诱发突变及其突变体的检测

Mutation induced by γ irradiation , electron beam and benzamide in Soybean

小麦的诱发突变与细胞遗传

The MODIFICATIONAL mutation of wheat ( triticum aestivum ) and cellular heredity

诱发突变技术在小麦育种研究中的应用

Mutants Induction Technology and Its Application in Wheat Breeding Improvement

动物病毒的突变有自发突变和诱发突变。

Spontaneous and induced mutation occur with animals viruses .

国产防锈水及其组成成分对鼠伤寒沙门氏菌诱发突变作用的研究

A study on mutagenicity of rustproof fluid made in China and its various ingredients

叶子花辐照诱发突变育种的研究

The study of radiation induced breeding in Bougainvillea

讨论了单倍体体细胞愈伤组织无性系用于诱发突变和体细胞遗传研究的可能性。

Possibility of using calli-clones to the study of mutant and somatic genetices was discussed .

利用种质筛选与诱发突变获得小麦高无机磷含量变异体

Production of mutants with high inorganic phosphorus content in seeds by germplasm reselection and mutation techniques in Wheat

要充分利用突变小鼠作为研究模式，则需要诱发突变或自发基因突变之正确基因表现型特徵。

Making full use of mutant mice as research models requires correct characterization of the phenotypes that result from induced or spontaneous genetic mutations .

此外，还就诱发突变和自发突变矮源的共性以及寻找或创造新的非等位矮源的意义进行了讨论。

The common property between induced dwarf mutant and spontaneous dwarf mutant and the significance of seeking or creating newly non-allelic dwarfs have also been discussed .

中国植物突变育种在作物改良和诱发突变方法的研究上取得了显著成就，迄今为止，已在29种不同的植物中获得325个突变品种以及数以千计的有利用价值的突变体。

Plant mutation breeding is well developed not only in improvement of crops but also in methodology of mutation induction . More than 325 mutant varieties and hundreds of various valuable mutants of 29 different species have been obtained .

用激光处理向日葵种子，诱发突变，同时结合育种工作，筛选优良突变体，改善其不良性状，以满足农业生产的需要。

Laser is used to treat the sunflower seeds , induce mutation , synchronously combine the breeding work , filter the excellent mutation plants , alter its bad characters , and then will satisfy the demands of agriculture production .

更重要的是小鼠遗传资源丰富，已经成功培育478个近交系，通过自发突变、诱发突变和转基因技术等途径培育并保存了2000多个突变品系。

The most important characteristics of mouse are their abundant genetic resources . Up to now , 478 inbred strains have been cultured , and more than 2 000 mutant strains have been established by either spontaneous , inducible methods or transgenic technology , and conserved in world .

丙烯酰胺诱发突变主要由点突变和缺失两部分组成（40.0%～66.7%，33.3%～60.0%），而自发突变几乎全是点突变（90.0%以上），两种细胞均无全基因缺失型；

The most frequent spontaneous mutation was point mutation (≥ 90.0 % ) and acrylamide induced mutation mainly included partial deletion and point mutation ( respectively 40.0 % - 66.7 % , 33.3 % - 60.0 % ) . Total gene deletion was not discovered in both of cells .

太阳光及紫外线B诱发基因突变的碱基特异性

The specificity of mutations induced by sunlight and ultraviolet B

低能重离子引起DNA链断裂和诱发基因突变谱的研究

Study on DNA Strand Breaks and Mutation Spectrum Induced by Low-energy Heavy Ions

结果9AA能明显影响噬菌体的存活率和诱发DNA突变，突变率呈明显剂量反应关系；

Results 9 AA had an obvious effect on the survival rate of the Lambda phage and induce DNA mutation in a dose effect manner .

目的：分析太阳光与紫外线B（UVB）诱发基因突变的碱基特异性。

Objective : To analyse the specificity of mutations induced by sunlight and ultraviolet B ( UVB ) .

科辐早熟沙打旺新品种，是用C0~（60）&r射线处理沙打旺干种子，诱发早熟突变选育出来的。

The new variety of early-maturing Astragalus adsurgens pall radiated is selected through treatment of the dry seeds with ~ ( 60 ) Co - γ and the induction of early-maturing mutation .

此外，细菌在有氧代谢过程中产生的ROS（reactiveoxygenspecies）是诱发自发突变的原因之一。

Moreover , reactive oxygen species ( ROS ), generated as by-products of aerobic metabolism , are thought to be the inducers of spontaneous mutations of bacteria .

茵陈蒿拮抗AFB1诱发基因突变和小鼠骨髓细胞遗传损伤的实验研究

The experimental studies of Artemisia capillaris thumb to restrict the mutagenicity and genetic damages of the bone marrow cells in mice induced by aflatoxin B 1