作 者 ：Jiang Shu-Ting, Seng Chu-Reng
期 刊 ：植物分类学报 1989年 4期
关键词：轮叶黑藻罗氏轮叶黑藻核型；
Keywords:Hydrilla verticillata, H.verticillata var.roxburghii, Karyotype,
Abstract:
The present paper reports the chromosome number and karyotype of the genus
Hydrilla. H. verticillate was found to have 2n=16. The karyotype is 2n=16=6m+6sm+
4st. No difference between the male and the female was found in the work. H. verticillata
var. roxburghii Casp. has the somatic chromosome number 2n=24, and its karyotype is 2n=
3x=24=9m+9sm+6st. The variety may be a autotriploid. The karyotype of the genus is
obviously bimodal, with No. 1-5 in the first group and 6-8 in the second group.