植物抗病育种中的标记辅助选择与甘蔗

Marker-Assisted Selection in Plant Breeding for Disease Resistance and Sugarcane

抗病基因的分子标记具有稳定、准确、高效的特点,通过对基因型而不是表型的直接选择,抗病基因分子标记应用于辅助选择可大大加快常规育种进程,提高育种效率。本文评述了植物抗病育种中标记辅助选择的发展概况,介绍了各种DNA分子标记技术及植物抗病基因连锁标记的筛选方法,重点介绍了甘蔗抗病基因分子标记研究的现状,展望了分子标记辅助选择在甘蔗抗病育种中的前景。

Molecular marker of disease resistance gene is stable, accurate and efficient. It＇s application in marker-assisted selection can accelerate the conventional breeding process and raise its efficiency, through the direct selection on genotype but not phenotype. Outline of development of marker-assisted selection in plant breeding for disease resistance was reviewed in this paper. Technology of various DNA molecular tagging and selection method of molecular marker linked to crop disease resistance gene was introduced. Current status in the area of molecular tagging on disease resistance genes in sugarcane is also enclosed. At the same time, prospects of molecular marker-assisted selection in sugarcane breeding for disease resistance were forecasted.