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Position: Home > Articles > A Karyomorphological Study of Michelia microcarpa B. L. Chen et S. C. Yang( Magnoliaceae) Journal of West China Forestry Science 2015 (1) 27-29+40

木兰科小果含笑的核型分析

作  者:
徐涛;况兆南;司马永康;韩明跃;徐亮;郝佳波;李丹
单  位:
云南省林业科学院;国家林业局重点开放性实验室云南珍稀濒特森林植物保护和繁育实验室;西南林业大学;云南大学
关键词:
木兰科;小果含笑;核型;染色体类型
摘  要:
对小果含笑进行了细胞学研究,首次报道了其染色体数目和核形态结构。小果含笑的核型公式为2n=38=32m+6sm,小果含笑染色体臂比值大于2︰1的染色体占比为15.79%,染色体类型为2B,是含笑属植物中较为不对称的类型。初步探讨了小果含笑核型所揭示的系统学意义。
译  名:
A Karyomorphological Study of Michelia microcarpa B. L. Chen et S. C. Yang( Magnoliaceae)
作  者:
XU Tao;KUANG Zhao-nan;SIMA Yong-kang;HAN Ming-yue;XU Liang;HAO Jia-bo;LI Dan;School of Life Science,Yunnan University;Yunnan Laboratory for Conservation of Rare,Endangered & Endemic Forest Plants,Public Key Laboratory of the State Forestry Administration;Yunnan Provincial Key Laboratory of Cultivation and Exploitation of Forest Plants;Yunnan Academy of Forestry;Southwest Forestry University;
关键词:
Magnoliaceae;;Michelia microcarpa;;karyotype;;chromosome type
摘  要:
A karyomorphological study on Michelia microcarpa B. L. Chen et S. C. Yang was carried out. The research result shows that the karyotype is 2n = 38 = 32 m + 6sm,and the chromosomes that the chromosome arm ratio is greater than 2 account for 15. 79 %. The chromosome type is 2B,and it is relatively asymmetrical type in the genus Michelia. The relative systematic significance on the karyotype is discussed in this paper to some extent.

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