中国含笑属核型分析

中国科学院大学学报

中国含笑属核型分析

李秀兰,宋文芹,安祝平,陈瑞阳

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1998-03-10 发布日期:1998-03-10
通讯作者: 李秀兰

The Karyotype Analysis of Michelia (Magnoliaceae) in China

LI Xiu-Lan, SONG Wen-Qin, AN Zhu-Ping, CHEN Rui-Yang

Received:1900-01-01 Revised:1900-01-01 Online:1998-03-10 Published:1998-03-10
Contact: LI Xiu-Lan

摘要/Abstract

摘要：

对我国木兰科Magnoliaceae含笑属Michelia 12个种的核型进行了研究，核型公式如下:火力楠

M．macclurei var．sublanea 2n=34m(2SAT)+4sm；白兰M．alba 2n=34m+4sm；多花含笑M.flori-

bunda 2n=30m+8sm；黄兰M.champaca 2n=32m+6sm；石碌含笑M.shiluensis 2n=32m+6sm；阔

瓣含笑M . platypetala 2n=32m+6sm(2SAT)；含笑M．figo 2n=32m+6sm；深山含笑M．maudiae

2n=32m+6sm；长蕊含笑M. longistamina 2n=32m=6sm；金叶含笑M.foveolata 2n=34m=4sm；

野含笑M.skineriana 2n=30m+8sm；峨嵋含笑M.wilsonii 2n=30m+8sm(2SAT)。该属核型全部为

对称核型，除多花含笑为1A类型外，其他均为2A核型。含笑属种间核型具有很大相似性，核型资料对

该属属以下的分类帮助不大。

关键词: 含笑属, 核型分析

Abstract:

Karyotypes of 12 species of Michelia in the Magnoliaceae were studied. Their

karyotype formulas are: M. macclurei var. sublanea 2n＝34m(2SAT)+4sm; M. alba 2n＝34m+4sm; M. floribunda 2n=30m+8sm; M. champaca 2n=32m+6sm; M. shiluensis 2n=32m+6sm; M. platypetala 2n=32m+6sm(2SAT); M. figo 2n＝32m+6sm; M. maudiae 2n=32m+6sm; M. longistamina 2n＝32m+6sm; M. foveolata 2n＝34m+4sm; M. skineriana 2n=30m+8sm; M. wilsonii 2n＝30m+8sm(2SAT). All the species are of the symmetrical karyotype. The karyotypes all belong to 2A type except that of M. floribunda which is of 1A type. Due to the karyotype similarity among species, the karyotype data in Michelia may be hardly useful for infrageneric taxonomy.

Key words: Michelia, Karyotype analysis

李秀兰,宋文芹,安祝平,陈瑞阳. 中国含笑属核型分析[J]. 中国科学院大学学报.

LI Xiu-Lan, SONG Wen-Qin, AN Zhu-Ping, CHEN Rui-Yang. The Karyotype Analysis of Michelia (Magnoliaceae) in China[J]. .

[1]	李秀兰,宋文芹,安祝平,陈瑞阳. 木兰科属间核型比较[J]. 中国科学院大学学报, 1998, 36(3): 232-237.
[2]	孙根楼, 颜济, 杨俊良. 仲彬草属和鹅观草属几个种的核型研究[J]. 中国科学院大学学报, 1993, 31(6): 560-564.
[3]	李永康, 王雪明. 贵州含笑属一新种[J]. 中国科学院大学学报, 1987, 25(5): 408-409.