Quantitative analysis of morphological differentiation and phylogenetic relationship among three species of distylium in chongqing 重庆蚊母树属物种形态分化及种间亲缘关系的分析
Effect of electrical and chemical activation on reconstructed embryo formed by rat - mouse inter - species somatic cell nuclear transplantation 小鼠种间体细胞核移植重组胚发育的影响
Difference of water use efficiency of diploidy wheat species with different chromosome set and its relationship with root system growth 二倍体小麦种间水分利用效率的差异及与根系生长的关系
Spatial distribution pattern of tree species populations and interspecific association in fraxinus mandshurica and juglans mandshurica forest community 水胡林群落树木种群空间分布及种间关联性
Through identified , the number of triploid plants was 34 , the number of pentaploid plants was 9 , and the rest was tetraploid plant ( 328 ) 以32株三倍体和9株五倍体构建了一个种间有性分析群体。
It has also expounded the compounding theory and methods on the relationship of varieties , the construction and development of communities 并就种间关系、群落结构、群落演替等方面阐述配置的原理与方法。
Interspecific association of dominant shrub species in cold temperate coniferous forest in ma kehe region of san jiangyuan national nature reserve 三江源自然保护区玛珂河林区寒温性针叶林优势灌木种间联结研究
Specific mutations in a iral protein , the polymerase , contribute to the ability of the bird irus to jump the species barrier to humans 病毒蛋白质的特有的突变和多聚酶促成了禽类病毒跨越种间障碍传播到人类的能力
If we study on the phylogenetic relationship in intra - genus or intra - species using gapdh as a target gene , it may be make a discrepancy 对于距现今较近的动物，用其作为近亲缘关系的属内种间的标记基因，可能产生偏差。
The result shows that there are some differences among 7 species on the proximal face , the exine ornamention and shape 观察结果显示：孢子近极薄壁区的有无、形状及外壁纹饰的细微结构等方面，在属间和种间存在一定的差异。
