甜菜(Beta vulgaris)是东北及内蒙地区重要经济作物之一,研究和获得它的单倍体无性系,对甜菜生产具有重要意义。甜菜是二年生异花授粉作物,自然杂交率高,后代属于高度杂合体。用常规的育种方法,往往需要自交—杂交—自交的选育程序才能获得较纯的自交系和基因重组类型的优良品系,而且选育中常用多代自交繁殖,尚有结实率低、发芽率低、生活力弱等缺点,这样选育一个品种需多年的时间, Beta vulgaris is one of the important economic crops in Northeast and Inner Mongolia. Studying and obtaining its haploid clones is of great significance to beet production. Beet is a biennial cross-pollination crop that has a high rate of natural crossbreeding, and offspring are highly heterozygous. With conventional breeding methods, selfing-crossing-selfing breeding programs are often required to obtain relatively pure inbred lines and good genotypes of genetic recombination, breeding is often used for multiple generations of selfing, and there is also a seed setting rate Low, low germination rate, weakness and other weaknesses, such breeding a variety of species will take years,