横断山区隐瓣蝇子草四个居群的核型分析  

Karyotype Analysis of Four Populations of the Silene Gonospermain Hengduan Mountains

作　　者：饶培瑜 胡伸萌 苏富明 孙文光[1,2] 李志敏 RAO Pei-yu;HU Shen-meng;SU Fu-ming;SUN Wen-guang;LI Zhi-min(School of Life Sciences,Yunnan Normal University,Kunming 650500,China;Engineering Research Center of Sustainable Development and Utilization of Biomass Energy,Yunnan Normal University,Kunming 650500,China)

机构地区：[1]云南师范大学生命科学学院,云南昆明650500 [2]云南师范大学生物能源持续开发利用教育部工程研究中心,云南昆明650500

出　　处：《云南师范大学学报（自然科学版）》2019年第1期62-65,共4页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(31670206)

摘　　要：采用植物细胞常规染色体压片法对采自横断山区四个居群的隐瓣蝇子草(Silene gonosperma)进行染色体核型分析,结果表明:隐瓣蝇子草的四个居群数目都为48,基数都为12,所做的四个居群都为四倍体,核型不对称类型都为Stebbin′s-1A.上述隐瓣蝇子草的染色体数目和核型数据为首次报道;根据此结果初步讨论了隐瓣蝇子草生境和形态之间的关系以及隐瓣蝇子草的同源多倍化的问题.In this study using karyological and numerical taxonomic techniques to implicit Silene gonosperma collected from four populations in the Hengduan Mountains.The results show that:chromosome number of the four populations of Silene gonosperma is 48(2n),the basic chromosome number is 12(x),and all of the four populations are tetraploid.Nuclear asymmetric types are all Stebbin′s-1A.The chromosome number and karyotype of the Silene gonosperma were reported for the first time.We discussed the relationship between the habitat with morphology of the Silene gonosperma,and the homologous polyploidization of the Silene gonosperma also was discussed.

关 键 词：隐瓣蝇子草 核型 同源多倍化 

分 类 号：Q949.745.8[生物学—植物学]