| 1. | Phenotyping of progenies derived from pharbiti nil mutant
裂叶牵牛花色变异株后代的表型分析 |
| 2. | Separation on a new antigenic drift strain a3 of influenza viruses in guizhou
贵州省分离出一株甲3型流感病毒新变异株 |
| 3. | 《 international hepatis 》 ： what is the main influential factor in drug - resistance variant
《国际肝病》 ： .什么是耐药变异株的主要影响因素？ |
| 4. | The modernization of society has led to spread of infection and selection of new virus variants
社会现代化导致了新发病毒疾病的传播并选择了病毒变异株。 |
| 5. | With vvibdv and variant strains showed , it is very important to research of antigen and virulence of ibdv
随着vvibdv和变异株的发现， ibdv的抗原变异和毒力研究变的尤为重要。 |
| 6. | Substitution and insertion in all strains si gene , the homogeneity of nucleotide and the deduced amino acids of s1 gene with 17 alien and domestic references strains were equally less than 80 %
S1基因除与qx的亲缘关系较近外，与其它参考株的同源率均低于80 ，可能为一株国内流行性的变异株。 |
| 7. | A 59 - year - old man receiving long - term lamivudine therapy experienced a fatal exacerbation of hepatitis b virus ( hbv ) infection resulting in hepatic necrosis following the emergence of variant hbv
一例长期使用拉米夫定治疗的59岁男性患者在hbv变异株出现后乙肝病毒感染发生致命性加重，导致肝坏死。 |
| 8. | The traditional inactivated or attenuated vaccines could not provide enough protection against these variants and wibdv . therefore , a new generation of more effective and safer vaccines is anticipated . the purpose of this study was to develop a dna vaccine against ibdv
用弱毒苗和灭活苗免疫鸡群是目前防治ibd的主要方法，但随着ibdv变异株与超强毒株的出现，免疫失败常有发生。 |
| 9. | Two variant lines , named by tc243 - 1 and tc243 - 2 , had been obtained and their variant traits had been steadily inherited to t5 . the query to nasc suggested that tc243 - 1 and tc243 - 2 were new mutants . the molecular analysis of transferred plants and their offspring was carried out from the following four aspects
在离子束介导红甜菜转化后代中筛选到两个稳定变异株系tc243 - 1和tc243 - 2 ，经与拟南芥菜突变体库比较，确认为新的变异类型。 |
| 10. | Two amino acid substitutions near the vp2 - vp4 cleavage site were identified in the virulent strain jz2000 and might be involved in increased virulence of the virus . phylogenetic analyses indicated that these two strains were most closely related to some european strains but distinct from wibdv and variant strains
分子系统进化树分析表明， zj2000株和jd1株与cu - 1 、 p2 、 cef94 、 harbin等毒株的关系最近，而与欧洲、香港、日本的超强毒株和美国的变异株相对较远。 |
