Karyomorphology and relationships of Amentotaxus Pilg.-文献传递-植物通论文库

作者：ZHOU Qi-Xing, GU Zhi-Jian, YUE Zhong-Shu

期刊：植物分类学报 2000年 6期

Abstract:

In this paper, two species in Amentotaxus Pilg. from the mainland of China , A. ar-

gotaenia and A. yunnanensis, were karyomorphologically studied. They commonly showed the inter-

phase nuclei of the complex chromocenter type and the mitotic prophase chromosomes of the intersti-

tial type. Their karyotypes were formulated as K(2n) = 36 = 8m + 28T, both belonging to Stebbins‘

1B type and with the N. F. value ( number of fundamental) being 44. The chromosome number and

karyotype of A. yunnanensis were reported here for the first time. Karyomorphological features of

Amentotaxus, especially the N. F. value, together with other evidence, have indicated its close re-

lationship with Torreya within the Taxaceae.

Karyomorphology and relationships of Amentotaxus Pilg.