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木兰科属间核型比较

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:1998-05-10 发布日期:1998-05-10
  • 通讯作者: 李秀兰

Karyotype Comparison Between Genera in Magnoliaceae

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

  • Received:1900-01-01 Revised:1900-01-01 Online:1998-05-10 Published:1998-05-10
  • Contact: LI Xiu-Lan

摘要:

 本文对我国原始木本被子植物木兰科中的木兰属Magnolia、木莲属Manglietia、含笑属Michelia、
合果木属Paramichelia、观光木属Tsoongioderdron、拟单性木兰属Parakmeria、鹅掌楸属Liriodendron、
华盖木属Manglietiastrum 8属代表种的核型进行了研究。各属代表种的核型公式如下:夜合Magnolia
coco 32m+4sm+2st(2SAT);灰木莲Manglieatia glauca 32m+4sm+2st(2SAT);合果木Paramichelia
baillonii 34m(2SAT)+2sm+2st(2SAT);观光木Tsoongiodendron odorum 32m+6sn(2SAT);拟单性木
兰Parakmeria omeiensis 56m+16sm+4st(2SAT);鹅掌楸Liriodendron chinense 32+4sm(2SAT)+2st
(2SAT);华盖木Manglietiastrum sinicum 28m+4sm+6st(6SAT);白兰 Michelia alba 34m+4sm
(2SAT)。作者对木兰科核型进化问题进行了讨论。

关键词: 木兰科, 核型分析, 核型进化

Abstract:

The karyotype of representative species of eight genera in Magnoliaceae, including
Magnolia,Manglietia ,Michelia ,Paramichelia , Tsoongiodendron ,Parakmeria, Lirioden-
dron and Manglietiastrum, was studied. Their karyotype formulas are as follows: Magno-
lia coco 32m + 4sm + 2st(2SAT); Manglietia glauca 32m + 4sm + 2st(2SAT); Paramiche-
lia baillonii 34m (2SAT) + 2sm + 2st (2SAT); Tsoongiodendron odorum 32m + 6sm
(2SAT); Parakmeria omeiensis 56m + 16sm + 4st(2SAT); Liriodendron chinense 32m +
4sm(2SAT) + 2st(SAT); Manglietiastrum sinicum 28m + 4sm + 6st(6SAT); Michelia al-
ba 34m+ 4sm(2SAT). The karyotype evolution of Magnoliaceae is discussed.

Key words: Magnoliaceae, Karyotype analysis, Karyotype evolution