The Karyotypes of Angelica dahurica and Their Taxonomical Significance (Umbelliferae)

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The Karyotypes of Angelica dahurica and Their Taxonomical Significance (Umbelliferae)

Pan Ze-Hui, Chin Hui-Chen, Wu Zhu-Jun, Yuan Chang-Qi

(Jiangsu Institute of Botany, Nanjing)

Received:1900-01-01 Revised:1900-01-01 Online:1985-06-18 Published:1985-06-18
Contact: Pan Ze-Hui

Abstract

Abstract:

The present paper deals mainly with the karyotype analysis of five

materials in Angelica dahurica collected in Yanbian of Jilin, Anguo of Hebei, Yuxian of

Henan, Hangzhou of Zhejiang and Suining of Sichuan. They are under the names

“Dongbeidahuo”, “Qibaizhi”, “Yubaizhi”, ”Hangbaizhi” and “Chuanbaizhi” respe-

ctively. Among then “Dongbeidahuo” is a wild plant, which occurs in northeastern

China, and the others are cultivated as important crude drugs in some provinces. “Qi-

Baizhi” and “Yubaizhi” have been identified as conspecific with the wild Baizhi-“Do-

Ngbeidahuo” (A. dahurica) according to the external morphological features, whereas the

other cultivated ones, “Hangbaizhi” and “Chuanbaizhi”, treated as a variety (A. dahu-

rica var. formosana).

The results of karyotype analysis are shown in Plate 1, 2, with the formula 2n=22

=12 m+2 m^SAT+4sm+4st. The karyotypes described here are constantly characterized by

satellites attached to the fourth pair of metacentric chromosomes and differ from the pu-

blished reports on the other species of the genus. It is reasonable to say that the five

materials collectively named “Baizhi” are taxonomically closely related to each other

and could be regarded as conspecific. Since the second chromosome pair is submetacen-

tric in “Dongbeidahuo”, it may be justifiable to separate the wild plant from the cul-

tivated ones and treat them as two separate varieties.

Key words: Angelica dahurica, Karyotype

Pan Ze-Hui, Chin Hui-Chen, Wu Zhu-Jun, Yuan Chang-Qi. The Karyotypes of Angelica dahurica and Their Taxonomical Significance (Umbelliferae)[J]. .

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The Karyotypes of Angelica dahurica and Their Taxonomical Significance (Umbelliferae)

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