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四川葱属一新种及其核型

许介眉, 薛培凤, 朱世梅, 景望春   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1994-07-18 发布日期:1994-07-18
  • 通讯作者: 许介眉

A New Species of Allium L. from Sichuan and Its Karyotype

Xu Jie-mei, Xue Pei-feng, Zhu Shi-mei, Jing Wang-chun   

  • Received:1900-01-01 Revised:1900-01-01 Online:1994-07-18 Published:1994-07-18
  • Contact: Xu Jie-mei

摘要:

本文分析了该新种的核型,其核型公式为K(2n)=2x=16=14m+2st(2SAT),具一对居间随体,有时该居间随体不明显。核型的不对称性为2A型。

关键词: 葱属, 茂汶韭, 核型

Abstract:

 The new species of Allium L. , A. maowenense J. M. Xu, from Sichuan Province
is described in this paper. It is similar to A. eusperma Airy-Shaw, but differs from the latter
by white flowers and filaments about 2 times longer than tepals. The present paper also re-
ports the karyotype of the new species. The karyotypic formula was K (2n) = 2x = 16 = 14m
+2st (2SAT) with one pair of intercalary satellites, which sometimes were not found clear-
ly. The karyotypic asymmetry belongs to Stebbins’ 2A type.

Key words: Allium, A. maowenense, Karyotype