木兰科植物染色体数目报道  

Chromosome Numbers of Five Species and One Hybrid in Magnoliaceae

作　　者：张新华[1] 夏念和[1] 

机构地区：[1]中国科学院华南植物园,广州510650

出　　处：《热带亚热带植物学报》2005年第6期516-518,共3页Journal of Tropical and Subtropical Botany

基　　金：国家自然科学基金(No.30270100);中国科学院生物科学和生物技术研究特别支持费(STI-01-35)资助

摘　　要：木兰科5种(含笑属4种、木莲属1种)、1杂交种植物染色体基数均为x=19,且都是二倍体2n=38,未见多倍体和非整倍体。其中4种和1杂交种的染色体数目为首次报道。Chromosome numbers of five species and one hybrid （Michelia sirindhorniae （Noot. ＆ P. Chalermglin） N. H. Xia et X. H. Zhang, comb. nov., Michelia sphaerantha C. Y. Wu ex Law et Y. F. Wu, Michelia doltsopa Buch. -Ham ex DC., Michelia coriacea Chang et B.L. Chen, Manglietia garrettii Craib, Michelia maudiae Dunn x Michelia macclurei var. sublanea Dandy） of Magnoliaceae were observed. The results indicated that they have the same basic number of chromosome （x=19）, and that they are diploids （2n=38）. Chromosome numbers of all taxa except Michelia doltsopa are reported for the first time.

关 键 词：木兰科 含笑属 木莲属 染色体数目 新组合 

分 类 号：Q943[生物学—植物学]