The theory and techniques of molecular genetics developed remarkably in recent years, which expands the new space for animal resistance breeding.
近年分子遗传的理论和技术进展迅速，为动物抗性育种的研究开拓了新的空间。
2
The pathotypes, classification of cultivar resistance, advancement ofresistancegenetics and latent infection of bacterial wilt disease of sweet potato were presented.
阐述了甘薯瘟菌系致病类型、品种抗性分类、抗性遗传趋势和病菌潜伏侵染特征；
3
Lesion mimic mutant is important for understanding of the defense-single system of disease resistance, it also is focused on the fields of plant physiology, molecular biology and molecular genetics.