中国蔬菜植物核型特点及其变异规律研究

中国蔬菜植物核型特点及其变异规律研究 STUDIES ON THE KARYOTYPIC CHAR CTERS AND THEIR VARIATION REGULARITIES OF VEGETABLE PLANTS IN CHINA 利容千 Li Rongqian Wang Jianbo 1 first-author 王建波 1 武汉大学生物系 武汉大学生物系 Department of Biology,Wuhan University Department of Biology,Wuhan University 本文用植物有丝分裂染色体标本制备的新方法,研究了88种（变种）、141个品种（包括15科、44属）蔬菜植物的核型。通过研究总结了核型特点及其变异规律。在所有的研究种中,比较了染色体的大小、类型,核型类型和稳定性的差别,并在某些种类中,报道了染色体倍性的变化和结构的改变,以及对核型进化和种间亲缘关系进行了分析和讨论。 In this paper the karyotypes of 88 species（varieties）141 cultivars（inclu- ding 15 families 44 genera）of vegetable plants were studied by using the new method of preparing mitotic chromosome specimens in plants. The karyotypic eharactrs and their variation regularities were summari zed through this research.Further,the differentiation of chromosomal size and classification,karyotypic type and stability were studied between species in all vegetable plants,the ploidy variation and altertion of chromosomal structure also were reported.Finally,the karyotypic evolution and interspe- cific relationship of some species were analysied and discussed. 蔬菜 核型 变异 vegetable karyotype variation 国家自然科学基金资助课题 1990-03-01 2021-04-01 3